Drag Specialties

WISECO PISTON Wiseco 2-Stroke GP Series Piston, bore size 66.40mm, Silver, made in the usa, specific application

• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Wiseco offers a complete range of popular piston models and years for both trail and racing applications

WISECO FEATURES PRO-LITE PISTONS

• Innovative forging design and piston skirt provide maximum horsepower and torque
• Durability, longevity and increased horsepower

PK PISTON AND GASKET KITS

• Feature forged pistons, rings, wrist pins, circlips and top end gasket set
• Contain all the necessary components for overboring or rebuilding your top end
• Cylinder sleeves must be purchased separately
• See price list on page ???

WISECO PISTON PRICING

• All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on page ???

4-STROKE RACER'S CHOICE PISTONS

• When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
• Now you can own the same race parts as all the top race teams
• These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer

2-STROKE GP SERIES PISTONS

• Have additional features over standard Pro-Lite parts
• Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation
• Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end
• GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression

NOTE: Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.

WISECO PISTON Wiseco 4-Stroke Racer's Choice Piston, bore size 96.00mm, Silver, compression 12.5:1, made in the usa, specific application

• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Wiseco offers a complete range of popular piston models and years for both trail and racing applications

WISECO FEATURES PRO-LITE PISTONS

• Innovative forging design and piston skirt provide maximum horsepower and torque
• Durability, longevity and increased horsepower

PK PISTON AND GASKET KITS

• Feature forged pistons, rings, wrist pins, circlips and top end gasket set
• Contain all the necessary components for overboring or rebuilding your top end
• Cylinder sleeves must be purchased separately
• See price list on page ???

WISECO PISTON PRICING

• All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on page ???

4-STROKE RACER'S CHOICE PISTONS

• When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
• Now you can own the same race parts as all the top race teams
• These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer

2-STROKE GP SERIES PISTONS

• Have additional features over standard Pro-Lite parts
• Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation
• Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end
• GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression

NOTE: Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.

WISECO PISTON Wiseco 2-Stroke GP Series Piston, bore size 54.50mm, Silver, made in the usa, Electrofusion Bore., specific application

• Forged from high-silicon aluminum alloy for maximum strength and dependability
• Wiseco offers a complete range of popular piston models and years for both trail and racing applications

WISECO FEATURES PRO-LITE PISTONS

• Innovative forging design and piston skirt provide maximum horsepower and torque
• Durability, longevity and increased horsepower

PK PISTON AND GASKET KITS

• Feature forged pistons, rings, wrist pins, circlips and top end gasket set
• Contain all the necessary components for overboring or rebuilding your top end
• Cylinder sleeves must be purchased separately
• See price list on page ???

WISECO PISTON PRICING

• All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips; see price list on page ???

4-STROKE RACER'S CHOICE PISTONS

• When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
• Now you can own the same race parts as all the top race teams
• These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer

2-STROKE GP SERIES PISTONS

• Have additional features over standard Pro-Lite parts
• Each piston is E-Coated on the crown, ring grooves, and pin bore, for maximum wear resistance and protection from micro-welding, galling, and detonation
• Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end
• GP Series parts generally have less machining on the outside, which helps seal up the bore for increased compression

NOTE: Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.

WISECO PISTON PISTON KIT KAW 1000J, bore size 72.00mm, made in the usa, Aluminum, size +2.5mm, Forged

• Complete engine kits include pistons, ring sets, piston pins, retainer clips and head gasket
• All Wiseco pistons are forged from aerospace aluminum alloys on Wiseco's state-of-the art forging presses
• Built on a legacy of championships for over 60 years by American craftsmen
• Wiseco pistons have the latest dyno-tested technology to out-perform the competition
• Wiseco rings, clips and wrist pins only fit Wiseco pistons; also note that ring types do not interchange (i.e. CD is not interchangeable with TD)
• See replacement rings, wrist pins, and circlip pricing on page ???

WISECO PISTON PISTON KIT KAW KZ GPZ 750, bore size 69.00mm, made in the usa, Aluminum, size +3mm, Forged

• Complete engine kits include pistons, ring sets, piston pins, retainer clips and head gasket
• All Wiseco pistons are forged from aerospace aluminum alloys on Wiseco's state-of-the art forging presses
• Built on a legacy of championships for over 60 years by American craftsmen
• Wiseco pistons have the latest dyno-tested technology to out-perform the competition
• Wiseco rings, clips and wrist pins only fit Wiseco pistons; also note that ring types do not interchange (i.e. CD is not interchangeable with TD)
• See replacement rings, wrist pins, and circlip pricing on page ???

WISECO PISTON PISTON KIT ROADSTAR 4V, bore size 95.00mm, made in the usa, Aluminum, Standard, Forged

• Complete engine kits include pistons, ring sets, piston pins, retainer clips and head gasket
• All Wiseco pistons are forged from aerospace aluminum alloys on Wiseco's state-of-the art forging presses
• Built on a legacy of championships for over 60 years by American craftsmen
• Wiseco pistons have the latest dyno-tested technology to out-perform the competition
• Wiseco rings, clips and wrist pins only fit Wiseco pistons; also note that ring types do not interchange (i.e. CD is not interchangeable with TD)
• See replacement rings, wrist pins, and circlip pricing on page ???

WISECO PISTON Replacement Circlip, Harley 71-99 FX 48-99 FL 86 - 16 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, Standard, 8.5:1, stroke 4.25", Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, Standard, bore size 3.927", 10:1, Harley 99-16 FX 99-16 FL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, Standard, bore size 3.498", compression 10.5, Harley 04 - 16 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, Must Use Thunderstorm Heads., bore size 3.498", 10:1, Buell 96-98

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, compression 10.5, Harley 88 - 03 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, Standard, 10:1, Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, bore size 3.875", 9:1, VM, Standard, stroke 4", Harley 99-06 FX 99-06 FL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, 8.5:1, size .030", Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, 8.5:1, size .020", Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, 10:1, Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON High-Performance Forged Piston Kit, 8.5:1, size .010", Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON Replacement X-Ring Package, size +.040", Harley 79-99 FX 78-99 FL 86 - 16 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON Replacement X-Ring Package, size .005", Harley 84-00 FX 84-99 FL 87 - 94 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON Replacement X-Ring Package, size +.010", Harley 71-99 FX 48-99 FL 86 - 16 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON Replacement X-Ring Package, +.060" For 74", Standard For 80", Harley 71-99 FX 48-99 FL 86 - 16 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON Replacement X-Ring Package, +.020" For 80", +.080" For 74", Harley 71-99 FX 48-99 FL 86 - 16 XL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.

WISECO PISTON Replacement VM-RIngs, bore 3.875", size +.020", Harley 99-06 FX 99-06 FL

• Wiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperatures
• Kits include forged pistons with ArmorGlide coated skirts, rings, retainer clips, chrome piston pins and top-end gasket kits
• Twin Cam pistons have ArmorPlating which improves ring seal, eliminates ring micro-welding, and improves the piston's ability to defend against detonation damage
• Piston kits are available with X-Ring package (.062 top ring, .062 compression ring and .158 oil ring), XC-Ring packages (.039 top ring, .062 compression ring, .158 oil ring) or VM-rings (1.2mm steel, positive twist, gas nitrided top ring, 1.2mm cast iron, taper under-hook scraper ring and 2.0mm three-piece, flex-vent oil ring with steel chrome-faced rails); VM-rings, X-Rings and XC-Rings will not interchange
• X- and XC-rings are identified by PART # in the application chart; X-Ring PART #s end with an "X" and XC-Ring PART #s end with an "XC"
• 103" kits require cylinder boring; 110" kit requires big-bore cylinders and case boring; X-Ring package (.0472" top ring, .0472" compression ring and .118" oil ring); recalibration required
• Pistons are made in the U.S.A.