Engine

The S&S 585 EZ Start Camchest kit will add reliability and performance to your Twin Cam. Fits: 1999-06 Twin Cam Models (except 2006 Dyna) Upgrade to S&S bolt-in performance chain-drive camshafts Improves engine performance with higher lift...

The S&S 585 EZ Start Camchest kit will add reliability and performance to your Twin Cam. Fits: 2007-17 Twin Cam and 2006 Dyna Models Upgrade to S&S bolt-in performance chain-drive camshafts Improves engine performance with higher lift and...

S&S Cam Install kit includes everything you need to service or change cams in your 2007-2017 Harley Twin Cam or 2006 Dyna. Fits: 2007-2017 Harley Twin Cam or 2006 Dyna Kits include all required parts needed when servicing or changing cams in your...

Upgrade the breather in your Evo with some modern technology. Fits: 1993-1999 Evolution Big Twin Style Engine New-style breather is not dependent on the rotation of the crankshaft to make it open and close. Instead, reeds open when pressure in the...

S&S Cycle Forged Roller Rocker Arms for the Harley Evo and Twin Cam. Fits: 1984-2017 Harley Evolution and Twin Cam, 86-18 Sportster XL, 09-12 XR1200, 94-09 Buell Models (Except 1125R) Forged from 8620 steel, heat-treated then shot-peened for...

S&S Cycle Forged Roller Rocker Arms for the Harley Evo and Twin Cam models. 1.725 Rocker Ratio for custom applications. Fits: 1984-2017 Harley Evolution and Twin Cam, 86-18 Sportster XL, 09-12 XR1200, 94-09 Buell Models (Except 1125R) Forged from...

S&S Cycle Forged Roller Rocker Arm rebuild kit. Fits: S&S Forged Roller Rocker Arms Rebuild kit only Made in the U.S.A. Fitment YearMakeModel 1997 - 2000 Buell M2 Cyclone 1996 Buell S1 Lightning 1998 Buell S1...

S&S Cycle Forged Stanged Rocker Arms for the Harley Evo and Twin Cam models. Fits: 1984-2017 Harley Evolution and Twin Cam, 86-18 Sportster XL, 09-12 XR1200, 94-09 Buell Models (Except 1125R) An economical solution for stock rebuilds, and mild...

MR103 Cam for the Twin Cam motors from S&S. Fits: 2007-2017 Twin Cam, 06 Dyna Models Start any engine regardless of displacement or compression ratio with a stock starter Save your starter and battery; tested for 10,000 starts without running...

S&S Cycle Replacement Rocker Arm Shaft. Sold each. Fits: 84-17 Evo/Twin Cam and 86-18 Sportster XL - Repl, OEM #17611-83 Sold each Made in the U.S.A. Fitment YearMakeModel 1997 - 2000 Buell M2 Cyclone 1996 Buell S1...

High Performance Cylinder heads for 1999-2005 Twin Cams. Black finish and 89cc. Fits: 1999-2005 Harley Twin Cam High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and...

Instead of rebuilding an old engine, consider picking up a new one. V96 R - Wrinkle Black finish. Fits: 1984-’99 Harley-Davidson® Big twin chassis and custom frames designed for Evolution® big twin engines. 96" displacement with 10.1:1...

Get an internal view of your camchest with the Trask Assault series cam cover. Chrome finish. Fits: 2001-2016 Harley Twin Cam Models w/o Cam Position Sensor Transparent for viewing internal engine components Matches Assault series air cleaners Made in...

Drag Specialties Chrome Smooth Spark Plug/Head Bolt Covers for 1999-2017 Harley Twin Cam Models Fits: 1999-2017 Harley Twin Cam Models Smooth style Easy installation with included hardware Sold as a kit for two...

Replace or change the finish of your Tappet Block covers on your Harley Twin Cam model. Chrome Finish. Fits: 1999-2017 Harley Twin Cam Models Made from die‑cast aluminum with chrome finish Include gaskets and screws Sold as a set Chrome Finish

Drag Specialties Inner Primary Mainshaft Bearing. Fits: 1985-2006 Harley Big Twin - Repl. OEM #9135/60678-85 Kit includes sealed ball bearing, seal and snap ring Designed for use on straight splined shafts only Designed for stock style clutches...

Replace the worn out or broken motor mount on your Dyna with a brand-new one from Drag Specialties. Rear mount. Fits: 1991-1998 Harley Dyna FXD; repl OEM #47564-90 High-quality replacement motor mounts Meet or exceed OEM specifications Install...

Drag Specialties Silver Finned Spark Plug/Head Bolt Covers for 1999-2017 Harley Twin Cam Models Fits: 1999-2017 Harley Twin Cam Models Finned style Easy installation with included hardware Sold as a kit for two heads Fitment 2016-2017...

Direct heat away from your legs to make the ride more comfortable with Kuryakyn's Saddle Shields. Designed to fit 1999-2017 Harley Dyna models. Fits: 1999-2017 Harley Dyna Models Frame‑mounted polycarbonate shields help beat engine heat Dissipate and...

S&S  TC3 Oil Pump & Cam Support Plate Kit for Harley Twin Cam and 2006 Dynas. This kit is precision CNC machined forged aluminum to give increased structural strength and dimensional stability. Made in the USA Fits: 2007-17 Twin Cam and...

Upgrade that old worn engine to a 100" Monster with the S&S Power Package Kit from S&S Cycle. Silver finish with Chain Drive. Fits: 1999-2006 Harley Twin Cam Models (Except 06 Dyna and 99 Softail Models) Largest big bore kits available...

Upgrade that old worn engine to a 100" Monster with the S&S Power Package Kit from S&S Cycle. Silver finish with Gear Drive. Fits: 1999-2006 Harley Twin Cam Models (Except 06 Dyna and 99 Softail Models) Largest big bore kits available without...

Upgrade that old Twin Cam engine to a 110" Monster with the S&S Power Package Kit from S&S Cycle. Black finish with Gear Drive. Fits: 2007-2017 Harley Twin Cam Models (Except 2017 Touring Models) Largest big bore kits available without doing...

The S&S 551 EZ Start Camchest kit will add reliability and performance to your Twin Cam. Fits: 2007-17 Twin Cam and 2006 Dyna Models Upgrade to S&S bolt-in performance chain-drive camshafts Improves engine performance with higher lift and...

The S&S 585 EZ Start Gear drive Camchest kit will add reliability and performance to your Twin Cam. Fits: 1999-06 Twin Cam Models (except 2006 Dyna) Upgrade to S&S bolt-in performance gear-drive camshafts Improves engine performance with...

Instead of upgrading to a Larger displacement engine, consider this Big Bore Stroker Kit from S&S. Natural finish. Fits: 1984-’99 Harley-Davidson® Evolution® big twin engines. Kits include standard flywheel assembly, 3 5/8" bore...

Adjustable Pushrod Kit with chrome covers for Harley Twin Cam models from S&S Cycle. Fits: 1999-2017 Harley Twin Cam models Kits include four S&S adjustable pushrods, four pushrod covers, O-rings Pushrods are manufactured from chromoly steel...

Inspired by Pro Stock Drag Race engines, these 4" Big Bore kits from S&S Cycle delivery a serious punch of power in a bolt-on application. Silver finish,. Fits: 1999-2006 Harley Twin Cam Models (Except '99 Softail Models) Bolt in - no machining,...

Inspired by Pro Stock Drag Race engines, these 4" Big Bore kits from S&S Cycle delivery a serious punch of power in a bolt-on application. Silver finish,. Fits: 2007-2017 Harley Twin Cam Models (Except 2017 Touring) Bolt in - no machining,...

High Performance Cylinder heads for 06-Up Twin Cams. Silver finish and 89cc. Fits: 06-17 Twin Cam (Except Twin Cooled Motors) High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with...

Add that touch of detail to your Twin Cam motor and trans with Santoro Fabworx Chacho Bolt Kit. This Deluxe kit comes with covers and Stainless-Steel Socket Head hardware to replace your OE bolts for the Rocker Boxes, Lifter Blocks, Cam Cover,...