Engine

V-Twin - 11-0500 - 74 inch Shovelhead Front CylinderDescriptionFront cylinder fits Shovelhead 1966-1978 74" models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Sold each. There are...

V-Twin - 11-0499 - 74 inch Knucklehead Front CylinderDescriptionFront cylinder fits Knucklehead 1941-1947 74" models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Sold each. Piston is...

V-Twin - 11-0498 - 74 inch Knucklehead Rear CylinderDescriptionRear cylinder fits Knucklehead 1941-1947 74" models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Sold each. Piston is...

V-Twin - 11-0496 - 80 inch Shovelhead Front CylinderDescriptionFront cylinder fits Shovelhead 1979-1985 80" models. Cylinders are for stock bore, stock stroke and compression.Sold each. Cylinders are 88.86mm bore with + or - .005mm range of tolerance and...

V-Twin - 11-0495 - 61 inch Knucklehead Front CylinderDescriptionFront cylinder fits Knucklehead 1936-1947 61" models. Cylinders are for stock bore, stock stroke and compression, featuring 5 fins.Cylinders must be honed to standard size for proper fit...

V-Twin - 11-0494 - 61 inch Knucklehead Rear CylinderDescriptionRear cylinder fits Knucklehead 1936-1947 61" models. Cylinders are for stock bore, stock stroke and compression, featuring 5 fins.Cylinders must be honed to standard size for proper fit. Sold...

V-Twin - 11-0492 - 900cc Rear CylinderDescriptionRear cylinder fits 1957-1971 XL 900cc models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Fits:XL 1957-1971Additional Information ...

V-Twin - 11-0489 - 1000cc Rear CylinderDescriptionRear cylinder fits 1972 XL 1000cc models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Fits:XL 1972-1972Additional Information OEM...

V-Twin - 11-0488 - 1000cc Front CylinderDescriptionFront cylinder fits 1972 XL 1000cc models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Fits:XL 1972-1972Additional Information OEM...

V-Twin - 11-0482 - 900cc Front CylinderDescriptionFront cylinder fits 1957-1971 XL 900cc models. Cylinders are for stock bore, stock stroke and compression.Cylinders must be honed to standard size for proper fit. Fits:XL 1957-1971Additional Information ...

V-Twin - 11-0481 - 80 inch Shovelhead Front CylinderDescriptionGME 80" front replacement cylinder for 1979-1985 Shovelhead.GME front replacement cylinder is sold each without piston. The use of Colony 12 point Head Bolts 8714-20 chrome or 8618-20 black...

V-Twin - 11-0474 - 80 inch Shovelhead Rear CylinderDescriptionGME 80" rear replacement cylinder for 1979-1985 Shovelhead models.GME 80" rear replacement cylinder is sold each without piston. The use of Colony 12-point Head Bolts or black and cylinder...

V-Twin - 11-0461 - 74 inch Overhead Valve Forged Piston Set .060 OversizeDescriptionS&S forged .060 piston set for stroker flywheels.S&S stroker forged .060 piston set is machined to fit both 4-3/4" & 4-5/8" stroker flywheels. Piston set includes rings,...

V-Twin - 11-0455 - 74 inch Overhead Valve Forged Piston Set Standard SizeDescriptionS&S forged piston set 3-7/16" bore is standard size. Set includes rings, wrist pins and retainers. Machined to fit 4-3/4" or 4-5/8" stroker flywheels.**Note: Run engine...

V-Twin - 11-0441 - Replica 1100cc Piston Set .040 OversizeDescriptionReplica piston set is .040 oversize. Set includes Hasting 3 piece ring set, 2 wrist pins and 4 circlips.**Note: Run engine at moderate speeds for at least 500 miles, avoiding excessive...

V-Twin - 11-0440 - Replica 883cc Piston Set .040 OversizeDescriptionReplica piston set is .040 oversize. Set includes Hasting 3 piece rings, 2 wrist pins and 4 circlips.**Note: Run engine at moderate speeds for at least 500 miles, avoiding excessive...

V-Twin - 11-0439 - 3-5/16 inch Piston Kit .080 OversizeDescriptionPiston set with 3-5/16" bore is .080 oversize. Set includes Hasting 3 piece ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut case.**Note: Run engine at...

V-Twin - 11-0438 - K-Model Piston Kit StandardDescription2.745" bore piston kit, standard, includes rings. Fits:K 1952-1956Additional Information OEM No.22251-52A UOM1 - KIT ManufacturerEastern OriginImported 2025 Catalog Pages820

V-Twin - 11-0437 - K-Model Piston Kit .070 OversizeDescriptionPiston kit .070, 2.745" bore, includes rings. Fits:K 1952-1956Additional Information UOM1 - KIT ManufacturerEastern OriginImported 2025 Catalog Pages820

V-Twin - 11-0436 - K-Model Piston Kit .060 OversizeDescriptionPiston kit .060, 2.745" bore, includes rings. Fits:K 1952-1956Additional Information UOM1 - KIT ManufacturerEastern OriginImported 2025 Catalog Pages820

V-Twin - 11-0433 - K-Model Piston Kit .030 OversizeDescriptionPiston kit .030, 2.745" bore, includes rings. Fits:K 1952-1956Additional Information UOM1 - KIT ManufacturerEastern OriginImported 2025 Catalog Pages820 Replacement Items11-2532 - 45"...

V-Twin - 11-0432 - K-Model Piston Kit .020 OversizeDescriptionPiston kit .020 oversize, 2.745" bore, includes rings. Fits:K 1952-1956Additional Information UOM1 - KIT ManufacturerEastern OriginImported 2025 Catalog Pages820

V-Twin - 11-0431 - K-Model 2-3/4 inch Piston Set .010 OversizeDescriptionPiston set has a 2-3/4" bore and is .010 oversize. Set includes 1 piece ring set, 2 wrist pins and 4 circlips. Fits:K 1952-1956Additional Information UOM1 - KIT ...

V-Twin - 11-0430 - Replica 1000cc Piston Set .070 OversizeDescriptionReplica piston set has a 3-3/16" bore and is .070 oversize . Set has a compression ratio of 8.4:1 and includes Hasting 3 piece ring set, 2 wrist pins and 4 circlips.**Note: Run engine...

V-Twin - 11-0429 - 3-5/16 inch Piston Set .060 OversizeDescriptionPiston set with 3-5/16" bore is .060 oversize. Set includes Hasting 3 piece ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.**Note: Run engine at...

V-Twin - 11-0428 - 3-5/16 inch Piston Set .040 OversizeDescriptionPiston set with 3-5/16" bore is .040 oversize. Set includes Hasting 3 piece rings, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.**Note: Run engine at...

V-Twin - 11-0427 - 3-5/16 inch Piston Set .020 OversizeDescriptionPiston set with 3-5/16" bore is .020 oversize. Set includes Hasting 3 piece rings, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.The deck compression...

V-Twin - 11-0426 - 61 inch Overhead Valve 3-5/16 inch Piston Set Standard SizeDescriptionPiston set with 3-5/16" bore is standard size. Set includes Hasting 3 piece ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast...

V-Twin - 11-0424 - 3-7/16 inch Piston Set .070 OversizeDescriptionPiston set 3-7/16" bore and is .070 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" engine Fits:ULH...

V-Twin - 11-0418 - 3-5/16 inch Piston Set .030 OversizeDescriptionPiston set 3-5/16" bore is .030 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...

V-Twin - 11-0417 - 3-5/16 inch Piston Set .020 OversizeDescriptionPiston set 3-5/16" bore is .020 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...

V-Twin - 11-0416 - 3-5/16 inch Piston Set .010 OversizeDescriptionPiston set 3-5/16" bore is .010 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...

V-Twin - 11-0415 - 3-5/16 inch Piston Set Standard SizeDescriptionPiston set 3-5/16" bore is standard size. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...

V-Twin - 11-0414 - 3-7/16 inch Piston Set .060 OversizeDescriptionPiston set 3-7/16" bore is .060 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" engine Fits:ULH 1937-1948Additional...

V-Twin - 11-0413 - 3-7/16 inch Piston Set .050 OversizeDescriptionPiston set 3-7/16" bore is .050 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" engine. Fits:ULH...

V-Twin - 11-0410 - 3-7/16 inch Piston Set .020 OversizeDescriptionPiston set 3-7/16" bore is .020 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" engine Fits:ULH 1937-1948Additional...

V-Twin - 11-0409 - 3-7/16 inch Piston Set .010 OversizeDescriptionPiston set 3-7/16" bore is .010 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" engine Fits:ULH 1937-1948Additional...

V-Twin - 11-0408 - 3-7/16 inch Piston Set Standard SizeDescriptionPiston set 3-7/16" bore is standard size. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" models. Fits:ULH...

V-Twin - 11-0402 - Piston Kit .020 OversizeDescription.020 piston kit comes with .020 rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. Top ring measures 3/32" thick and the oil ring...

V-Twin - 11-0385 - 3-5/8 inch Cylinder SetDescriptionCylinders are .200 taller than stock height cylinders.For installation of 3-5/8" cylinders after spigot holes have been enlargedto 3.8750". (See diagram for photos.) Cylinders are honed to a finished...