Engine

Feuling Vented Dipstick kit for H-D Milwaukee-8 and 06-17 Twin Cam engines.    The FEULING® billet dipsticks vent/breathe excessive crankcase pressure from the oil tank through a PCV style breather, consisting of an oil separator system, perforated disc, replaceable filter element and umbrella flapper valve....

TRASK PERFORMANCE CheckM8™ vented transmission top cover fixes the excessive crankcase breather pressure issue on Harley-Davidson M8 engines. Reduce or even eliminate the oil coming from the head breathers on your M8. Machined from Billet Aluminum with a Boyesen one-way reed valve to vent the...

The Man O-War motorsprocket is the 1st performance engineered primary motor sprocket that replaces the OEM Compensator on ‘07 - ‘16 Twin Cam® models and provides instant torque response combined with an “engine pulse absorbing cushion drive”  primary drive system for Harley-Davidson® Twin Cams....

Factory tappet guides are constructed of plastic and are at risk for allowing the tappets to twist under heavy stress. S&S Tappet Cuffs capture the tappets without impacting vertical motion and keeping them perfectly aligned, even in high stress, high RPM situations. FEATURES AND...

Super clean way to mount an oil pressure gauge on Twin Cam engines Give a great view of the gauge and add style to your engine The finest assemblies available; each is beautifully CNC-machined from aluminum, and each comes with a quality U.S.A.-made stainless steel hose...

Provides 10 degrees of cooling power Consistent filtering across the entire surface Flows 7 times more than paper or synthetic filters while filtering to 35 microns (absolute, 1 pass test) Unaffected by water, heat or pressure Bypass valve will not open on cold startups...

Man O-War Motorsprocket (34T) system for Harley-Davidson ‘17 - present Milwaukee 8® Models The Man O-War motorsprocket is the 1st performance engineered primary motor sprocket that replaces the OEM Compensator on ‘17- present Milwaukee 8® models and provides instant torque response combined with an “engine...

Upgrade Your Ride with S&S Cycle's Billet Fuel Rails! Say goodbye to cracked plastic OEM rails and hello to durability and performance like never before. Our Billet Fuel Rails are the ultimate solution for riders seeking reliability and enhanced fuel delivery. Crafted from premium-grade...

HD Oil Dipstick | for Harley Davidson®  The Harley Davidson Oil dipstick by Koso is a fast and simple solution to verifying oil level as well as temperature. The push to power technology provides the ability to check your bike’s oil vital signs on...

Milwaukee Eight™ camshaft installation kits include all needed gaskets, O-rings, cam bearing and fasteners to change the camshaft using one piece pushrods. Includes the following gaskets: top rocker cover, cam cover, lifter blocks, exhaust. O-rings: pushrod tubes, camplate, breather assemblies. ARP® cam/crank bolts and washers and...

• Top engine builders demand quality fasteners! Secure your engine with complete confidence.• Feuling® engine fastener kits for Twin Cam® engines• Quality 12-point heat treated 8740 chrome moly steel bolts with black oxide finish• Feature precision rolled threads for optimum engagement, to prevent galling and promote...

• The strongest studs & bolts available!• Top engine builders demand quality fasteners! Secure your engine with complete confidence• Superior in strength and performance to any other cylinder stud head bolt kit on the market, this kit is designed to exceed the needs of...

Installation time measured in minutes Extra riding time measured in years Jagg oil coolers feature cutting-edge technology to keep your engine cool under the most punishing conditions And because they're designed to look as good as they perform, they'll perfectly complement your bike's style...

The Jagg Dyna 10-row LowMount oil cooler system was designed to deliver – and keep a low-profile. The 10-row, double-pass oil cooler is optimized for the Twin-Cam engine (also fits late-model EVO's) to provide the best heat-exchange and flow characteristics, all while hiding neatly...

Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate are precision-machined from billet aluminum with a blue anodized finish Passage plugs are removable for servicing Independent scavenge sections for the flywheel cavity...

Product Description S&S Cams offer proven performance for your new M-eight.  Fits: 2017-2023 Harley M8 Engines The 475C is a 100+ HP Bolt-in Cam (When coupled with intake and exhaust) Bolt-in! Compatible with all stock valve train components Kits include all required bearings, o-rings,...

Perfect update to traditional drag pipes; maintains clean, pure drag-pipe appearance Full-length, 2.5" heat shields with a 222° wrap around for a non-bluing appearance Capped with machined and chromed billet tips Removable performance cores Power with social responsibility Made in the U.S.A. For Twin...

The crew here at S&S Cycle have been working on our new Billet Head Breathers, crafted from premium 6061 aluminum and anodized in the iconic S&S Blue. Our new breathers feature a dual O-ring design, ensuring a superior seal in the head, minimizing leaks,...

Introducing the next evolution in performance for your primary drive: the S&S Cycle Heavy Duty Compensator Ramp for Harley-Davidson® M8 models! Built to handle the demands of upgraded horsepower and torque, this Compensator Ramp is engineered with the highest-quality materials and advanced manufacturing techniques....

The factory oil control valve on all oil cooled M8 engines regulates the amount of oil flowing to the oil cooler/heads. The stock assembly includes a check ball retainer that is formed steel. Over time, this retainer can fatigue and break, causing chips to...