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Bike Specific Fits Bike Does Not FitS&S Cycle Piston Cooling Jet Kit - Twin CamSpecial Price $80.96 Regular Price $89.95/ kit
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Bike Specific Fits Bike Does Not FitAlloy ART Comp Cam Cover - Black - Finned - M8$444.95
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Bike Specific Fits Bike Does Not FitThrashin Supply CO. Cam Cover - Gen 2 - Finned - Chrome - M8$134.95
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Bike Specific Fits Bike Does Not FitThrashin Supply CO. Cam Cover - Gen 2 - Smooth - Black - M8$114.95
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Bike Specific Fits Bike Does Not FitCometic Dip Stick O-Ring - Rev Max - 10 Pack$22.95/ 10 pack
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Bike Specific Fits Bike Does Not FitCometic Oil Drain Plug O-Ring - Rev Max - 10 Pack$11.95/ 10 pack
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Bike Specific Fits Bike Does Not FitCometic Induction Module O-Ring Kit - Fuel Inj - Twin Cam$21.95/ kit
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Bike Specific Fits Bike Does Not FitCometic Breather Cover Gasket - '99-'10 Twin Cam$14.95
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Bike Specific Fits Bike Does Not FitS&S Cycle Head Gasket - Water/Oil Cooled - 136" - Center Cooled - M8Special Price $39.95 Regular Price $45.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle Head Gasket - Water/Oil Cooled - 129"/132" - Center Cooled - M8Special Price $39.95 Regular Price $49.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle Gasket Kit - Head/Base/Exhaust - 136" - Center Cooled - M8Special Price $125.95 Regular Price $234.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle Gasket Kit - Head/Base/Exhaust - 129"/132" - Center Cooled - M8Special Price $125.95 Regular Price $234.95/ kit
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Possible FitS&S Cycle Gasket Kit - Head/Base/Exhaust - 129"/132" - Center Cooled - M8Special Price $211.46 Regular Price $234.95/ kit
Final Sale Final sale items can't be returned or exchanged.
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Bike Specific Fits Bike Does Not FitS&S Cycle Gasket Kit - Head/Base/Exhaust - Center Cooled - M8Special Price $148.46 Regular Price $164.95/ kit
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Bike Specific Fits Bike Does Not FitCometic Head Gasket - 4.310" - .036" - Center Cooled - MLS$64.95/ pair
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Bike Specific Fits Bike Does Not FitCometic Head Gasket - 4.250" - .030" - Center Cooled - MLS$64.95/ pair
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Bike Specific Fits Bike Does Not FitCometic Head Gasket - 4.500" - .052" - 4.515" ID Coolant - MLX - M8$92.95/ pair
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Bike Specific Fits Bike Does Not FitTrask Assault Cam Cover Repair Kit - Twin Cam$39.95/ kit
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Bike Specific Fits Bike Does Not FitAlloy ART Floor Board Delete Mount - Black Anodized - M8$169.95
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Bike Specific Fits Bike Does Not FitAlloy ART Adjustable Stabilizer Link - Front - Gold Anodized - Touring$135.99
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Bike Specific Fits Bike Does Not FitAlloy ART Adjustable Stabilizer Link - Front - Black Anodized - Touring$135.99
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Bike Specific Fits Bike Does Not FitAlloy ART Adjustable Stabilizer Link - Front - Raw Machined - Touring$125.99
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Bike Specific Fits Bike Does Not FitS&S Cycle Cylinder Set - 4.320" Bore - Unhoned - Black Granite w/Highlighted Fins - M8Special Price $741.56 Regular Price $823.95/ pair
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Bike Specific Fits Bike Does Not FitS&S Cycle 136" Cylinder Kit - 4.625" Stroke - Wrinkle Black w/Highlighted Fins - M8Special Price $1,479.56 Regular Price $1,643.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 136" Cylinder Kit - 4.625" Stroke - Wrinkle Black w/o Highlighted Fins - M8Special Price $1,479.56 Regular Price $1,643.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/o Highlighted Fins - M8Special Price $1,479.56 Regular Price $1,643.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 132" Cylinder Kit - 4.500" Stroke - Wrinkle Black w/Highlighted Fins - M8Special Price $1,479.56 Regular Price $1,643.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 129" Cylinder Kit - 4.375" Stroke - Wrinkle Black w/Highlighted Fins - M8Special Price $1,479.56 Regular Price $1,643.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 129" Cylinder Kit - 4.375" Stroke - Wrinkle Black w/o Highlighted Fins - M8Special Price $1,479.56 Regular Price $1,643.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 136" Cylinder Kit - 4.625" Stroke - Black Granite w/Highlighted Fins - M8Special Price $1,484.96 Regular Price $1,649.95/ kit
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Bike Specific Fits Bike Does Not FitS&S Cycle 132" Cylinder Kit - 4.500" Stroke - Black Granite w/Highlighted Fins - M8Special Price $1,484.96 Regular Price $1,649.95/ kit
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Engine parts for Harley-Davidson and Indian V-twins: big bore and stroker kits, cams, heads, gaskets and seals, pistons, valve train parts and complete engines. Brands include S&S Cycle, James Gasket, Cometic, Drag Specialties and Kibblewhite.
Common questions
Can I install engine parts myself?
Gaskets and bolt-on parts suit an experienced home mechanic; internal engine work often needs specialty tools and a service manual.
What is a big bore kit?
A big bore kit increases cylinder diameter to raise displacement and power, usually with matching pistons and gaskets.
Will this part fit my bike?
Use Shop by Bike at the top of the page: pick your year, make and model and every product shows whether it fits. Category pages can also be filtered to your bike, so you only see parts listed for it.