Engine

S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '78-'91 Harley Big Twin Features: Master rebuild kit for S&S oil pump. Made in the U.S.A. Fitment 1991 Harley-Davidson Dyna Sturgis...

S&S Cycle - Natural 80" Bore Cylinder & Piston Kit fits '84-'00 Evolution Big Twin Models W/ Stock or S&S Heads S&S Cycle's 80" Bore Cylinder & Piston Kits feature S&S 3½" bore cylinders and forged pistons, rings, wrist...

S&S Cycle - Natural Finish Evolution-Style Aluminum Cylinders fits '84-'99 Evolution Big Twin Engines S&S Cycle's Evolution-Style Aluminum Cylinders are stock replacement cylinders featuring a 3½" bore with a cast-iron liner. Its finish...

S&S Cycle - Oil Change Kit W/ Black Oil Filter fits '17-'21 Harley M8 Models S&S Cycle's Oil Change Kit delivers regular viscosity and resists thermal breakdown and oxidation at elevated temperatures. It provides superior lubrication for...

S&S Cycle - Oil Pump fits '17-'21 M8 Water-Cooled Touring Models S&S Cycle's Oil Pump for '17-'21 M8 Water-Cooled Touring Models delivers a 20% flow increase on the supply side and a 52% flow increase on scavenge. There are independent scavenge...

S&S Cycle - Retro Top-End Conversion Kit for 3.625" Bore Cylinders fits '66-'84 Shovelhead Engines Your Shovelhead will achieve the ultimate blast-from-the-past appearance of a Panhead with this Retro Top-End Conversion Kit from S&S Cycle! It...

S&S Cycle - Retro Top-End Conversion Kit for Stock Bore Cylinders fits '66-'84 Shovelhead Engines Your Shovelhead will achieve the ultimate blast-from-the-past appearance of a Panhead with this Retro Top-End Conversion Kit from S&S Cycle! It...

S&S Cycle - Rocker Arm Stud Kit fits '17-'21 M8 Models This rocker arm stud kit lengthens  the life of your cylinder heads AND helps prevent damage to the rocker arm towers! You can re-torque the rocker arm nuts after installation. The kit...

S&S Cycle - Roller Rocker Arms fits M8 Softail Models Features Forged from 8620 steel, heat-treated then shot-peened for additional strength and durability Rocker arms have .75" long bushings instead of the .50" long bushings found on most other...

S&S Cycle - Silver 100" Bolt-In Sidewinder® 4" Big Bore Kit fits '99-'06 Twin Cam Engines This Big Bore Kit has a 10.5:1 compression ratio (W/ stock 85cc heads) that will transform your engine into a street-ready and reliable machine which will...

S&S Cycle - Silver 110" Bolt-In Sidewinder® 4" Big Bore Kit fits '07-'17 Twin Cam Engines This Big Bore Kit has a 10.5:1 compression ratio (W/ stock 85cc heads) that will transform your engine into a street-ready and reliable machine which will...

S&S Cycle - Silver Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation, and even greater...

S&S Cycle - Silver Powdercoat 95" Big Bore Kit fits '99-'06 Twin Cam Engines (3.875" Bore, 4" Stroke, 9.7:1 Comp. W/ Stock Heads) This Big Bore Kit produces outstanding outcomes with stock cylinder heads. It comes complete with cylinders, pistons,...

S&S Cycle - Silver XL883 to 1200 Conversion Kit fits '86-'20 XL 883 Models This conversion kit installs in no time at all since the pistons are already fit to the cylinders, making them prepared for assembly as soon as you open them! The kits are...

S&S Cycle - Steel Rotary Breather Gear fits '84-'99 Harley Models - Big Twin Features: All-steel construction Welded-in screen Higher flow than stock Elongated breather pocket scavenge hole for increased...

S&S Cycle - Stock Bore 80" Cylinder and Standard Compression Piston Kit fits '78-'84 Shovelhead Engines This Kit is built to replace the cylinders and pistons of an 80" Shovelhead engine whilst maintaining the stock compression ratio of 8:1. It...

S&S Cycle - Stone Gray Powdercoat 117" Big Bore Kit fits '07-'17 Twin Cam Engines (4.125" Bore, 4⅜" Stroke, 10.5:1 Comp. W/ Stock Heads) This Big Bore Kit produces outstanding outcomes with stock cylinder heads. It comes complete with cylinders,...

S&S Cycle - Stone Gray Powdercoat 124" Big Bore Kit fits '07-'17 Twin Cam Engines (4.125" Bore, 4⅝" Stroke, 11.4:1 Comp. W/ Stock Heads) This Big Bore Kit comes complete with cylinders, pistons, rings and gaskets (head, base and exhaust)...

S&S Cycle - Super Stock™ '66-'78 Cylinder Heads - fits 3-5/8" Bore Cylinders Features: Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve keepers Complete kits also include...

S&S Cycle - Super Stock™ '66-'78 Style Cylinder Head Kit for Stock Bore Cylinders W/ O-Ring Intake Complete kits also include rocker cover gaskets, head gaskets and miscellaneous hardware with instructions Use OEM manifolds and...

S&S Cycle - Super Stock™ '79-'84 Style Cylinder Head Kit for Stock Bore Cylinders W/ Rubber Band Intake This Cylinder Head Kit uses a band-style intake (not included). Sold in pairs, built with pride in the U.S.A. Features Heads come...

S&S Cycle - Super Stock™ Dual Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 ⅜" Bore Cylinders Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve...

S&S Cycle - Super Stock™ Single Spark Plug Cylinder Heads - fits '79-'84 (Rubber Band Intake) 3 ⅜" Bore Cylinders Heads come completely assembled with valve seats, valves, guides, seals, .590" lift valve springs, collars and valve...

S&S Cycle - TC3 Oil Pump & Cam Support Plate Kit - fits '07-'17 Harley Twin Cam Features: Precision CNC machined forged aluminum Increased structural strength Dimensional stability Freedom for internal porosity Separate scavenge sections...

S&S Cycle - TC3 Oil Pump- fits '07-'17 Twin Cam & '06 Dyna Models Features: Three stages for consistent pressure and reliable scavenging Separate scavenge sections for flywheel cavity and cam chest (no interface) Screens and magnetic traps...

S&S Cycle - Wrinke Black 128" Big Bore Kit W/ Highlighted Cylinder Fins fits '17-'20 114" 117" M8 Engines This is a bolt-on kit that features the biggest cylinder bore possible with no machining of the crankcases necessary! It includes all of the...

S&S Cycle - Wrinke Black 128" Big Bore Kit W/O Highlighted Cylinder Fins fits '17-'20 114" 117" M8 Engines This is a bolt-on kit that features the biggest cylinder bore possible with no machining of the crankcases necessary! It includes all of the...

S&S Cycle - Wrinkle Black 100" Bolt-In Sidewinder® 4" Big Bore Kit fits '99-'06 Twin Cam Engines This Big Bore Kit has a 10.5:1 compression ratio (W/ stock 85cc heads) that will transform your engine into a street-ready and reliable machine...

S&S Cycle - Wrinkle Black 124" Big Bore Kit W/ Highlighted Cylinder Fins fits '17-'21 107" M8 Engines This is a bolt-on kit that features the biggest bore possible with no machining of the crankcases necessary! It includes all of the required...

S&S Cycle - Wrinkle Black 124" Big Bore Kit W/O Highlighted Cylinder Fins fits '17-'21 107" M8 Engines This is a bolt-on kit that features the biggest bore possible with no machining of the crankcases necessary! It includes all of the required...

S&S Cycle - Wrinkle Black 131" Stroker Cylinder & Piston Kit W/ Highlighted Cylinder Fins fits '17-'21 M8 Engines S&S Cycle's Stroker Cylinder & Piston Kit is a bolt-on kit that is compatible with the stock crankcases and features...

S&S Cycle - Wrinkle Black 4¼" Bore M8 Cylinders W/ Highlighted Cylinder Fins fits '17-'20 M8 Engines  These cylinders are bored slightly under nominal size and are not honed. Features Bolt on Cylinder Set For M8 Models Sold in...

S&S Cycle - Wrinkle Black 4¼" Bore M8 Cylinders W/O Highlighted Cylinder Fins fits '17-'20 M8 Engines  These cylinders are bored slightly under nominal size and are not honed. Features Bolt on Cylinder Set For M8 Models Sold in...

S&S Cycle - Wrinkle Black 80" Bore Cylinder & Piston Kit fits '84-'00 Evolution Big Twin Models W/ Stock or S&S Heads S&S Cycle's 80" Bore Cylinder & Piston Kits feature S&S 3½" bore cylinders and forged pistons, rings,...

S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...

S&S Cycle - Wrinkle Black Powdercoat 79cc Super Stock™ Cylinder Heads fits '99-'05 Twin Cam Models (.585" Lift) S&S Cycle's 79cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial installation,...

S&S Cycle - Wrinkle Black Powdercoat 89cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 89cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...

S&S Cycle - Wrinkle Black Powdercoat 91cc Super Stock™ Cylinder Heads fits '06-'17 Twin Cam Models (Exc. Twin Cooled Motors) S&S Cycle's 91cc Super Stock™ Cylinder Heads' high port flow creates excellent performance after initial...

S&S Cycle - Wrinkle Black XL883 to 1200 Conversion Kit fits '86-'20 XL 883 Models This conversion kit installs in no time at all since the pistons are already fit to the cylinders, making them prepared for assembly as soon as you open them! The kits...

S&S Pushrod Tube Keepers - fits '17-'19 M-Eight Features: For use in custom applications where stock keepers won't fit. Chromed steel finish Sold in kits of four assemblies; enough for one...