M8 Softail Engine

Feuling - Endurance Beehive® Standard 6mm Valve Stem Valve Springs with Titanium Retainers Fits Harley '17-Up M8 Model Features Made from premium stress-relieved conical ovate wire Feature extremely high-level of fatigue life Use a much smaller...

Feuling - Race Series® 508 Camchest Kit fits '17-Up M8 Oil-Cooled Motors Please note this kit requires high lift valve springs on stock cylinder heads PART #'s 0926-2973 or 0926-2974 (See "Also Bought" Tab). Features Quieter and smoother engine...

Feuling - 465 HP+ Camchest Kit fits '17-Up M8 Twin-Cooled™ Motors Features Quieter and smoother engine operation Increase oil pressure, scavenge volume and engine oil flow 15-35 degree cooler engine temperatures 15-30 degree cooler oil...

Feuling - 465 HP+ Camchest Kit fits '17-Up M8 Oil-Cooled Motors Features Quieter and smoother engine operation Increase oil pressure, scavenge volume and engine oil flow 15-35 degree cooler engine temperatures 15-30 degree cooler oil...

Feuling - 405 HP+ Camchest Kit fits '17-Up M8 Oil-Cooled Motors Features Quieter and smoother engine operation Increase oil pressure, scavenge volume and engine oil flow 15-35 degree cooler engine temperatures 15-30 degree cooler oil...

Rough Crafts - Grooved Rocker Box Cover fits '17 & Up M8 Softail Models These Grooved Rocker Box Covers come complete with all of the necessary mounting hardware for a quick and easy installation. Available in your choice of a black or chrome finish...

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 - 128" Power Packages fits '17-'20 M8 Water/Oil-Cooled Engines This Power Package increases your 114"/117" with a 4-1/2" stroke M8 to 128". It is available in a wrinkle black or black granite finish and your choice of cylinders with or...

Performance Machine - Rocker Box Covers fits '17-'20 M-Eight These Rocker Box Covers were created to be designed the way that best fits your bike's style. They are available in chrome, contrast cut or platinum cut finishes. Features Direct...

S&S Valve Spring Kit For 2017-2018 M8 Models This replacement valve spring kit by S&S includes springs, top collars, keepers, valve seal/bottom collar; for Harley-Davidson Milwaukee Eight models between 2017-2018. Features: Include springs,...

Feuling 12 Point Engine Fastener Kit for 2018 Harley Softail Models This Primary/Transmission stainless steel kit includes primary, engine-to-transmission, derby cover, transmission clutch release cover, top bearing housing cover, and transmission top...

Arlen Ness - 10-Gauge Points Cover fits '17-'22 M8 Softail Models These covers are machined from 6061-T6 billet aluminum and are available in seven different colors: Chrome, Black Anodized, Blue Anodized, Gold Anodized, Orange Anodized, Red Anodized and...

S&S Cycle - 475 Cam Chain Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'20 Oil-Cooled M8 Models Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate are...

Drag Specialties - Spherical Radius Points Cover fits '17-'21 M8 Softail Models Available in your choice of a chrome, flat black or wrinkle black finish. Features Beautiful radiused points cover matches our brake caliper inserts and fork tube cap...

Revolution Performance - Tap-It-Right Tappet Cover Kits fits '17-'23 M8 Softail Models With Revolution Performance's Tap-It-Right Tappet Cover Kits, you won't have to worry about the inside bolt on the anti-rotation device breaking off in the case. The...

S&S Headbolt Kit - fits '17-'18 M8 Features: Made from heat-treated 8640 steel 200,000 psi ultimate tensile strength Stronger than the stock bolts Durable black oxide coating Formed threads Cold-formed 9/16​​" 12-point head with integral...

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...

Drag Specialties - High-Performance Oil Pump fits '17-Up M8 Twin-Cooled Motors The High-Performance Oil Pump features high-quality die-cast aluminum body construction, and high-strength steel gear construction. Features Helps to reduce oil...

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...

Feuling Dress Up Fastener Kit for 2018 Harley Softail This Chassis Dress-up Kit includes rear fender bracket, battery box side cover, shifter linkage, shifter arm w/nut and washer, and rear brake master cylinder hardware. Features: Quality 12-point...

Jims - 5808 Valve Spring Compression Collar Tool fits '17-'21 M-Eight Models Features: Valve spring collar allows existing compressor to remove smaller valves on M8 engines For use with JIMS® Valve Spring Compressor Tool (PART# DS-196013) Made...

Jims - 5833 Ball Bearing Installation Tool fits '17-'20 Softail & Touring Models Features: All Milwaukee-Eight® (M8) engines incorporate balancers to reduce vibration Designed to precisely install these bearings in the proper location for...

Jims - 5835 Valve Spring Compressor Tool fits '17-'21 M-Eight Models Features: Once the cylinder is filled with compressed air, the technician can easily rotate the tool and compress the top collar of the valve spring exposing the keepers to remove...

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 - Black Granite 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 - Black/Highlighted 4.375" Stroke 129" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines  S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power...

S&S Cycle - Black/Highlighted 4.5" Stroke 132" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines  S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power...

S&S Cycle - Black 4.5" Stroke 132" Big Bore Cylinder & Piston Kit fits '17 & Up M8 Engines S&S Cycle's Big Bore Cylinder & Piston Kit delivers a mighty bore increase (4.320") that, in turn, delivers a huge power increase! It is...

S&S Cycle - 465 Cam Chain Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'20 Twin-Cooled™ M8 Touring Models Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate...

Feuling - Race Series® 508 Chain Drive Camchest Kit fits '17-Up M8 Softail NOTE: Feuling highly recommends purchasing parts #0928-0091 and 2401-0994 when buying this Camchest kit in order to ensure optimum performance (See "Also Bought" section)...

Feuling - Race Series® 521 Camchest Kit fits '17-Up M8 Oil-Cooled Motors Please note this kit requires high lift valve springs PART #'s 0926-2973 or 0926-2974 (See "Also Bought" Tab). Features Quieter and smoother engine operation Increase oil...

Feuling - 405 HP+ Camchest Kit fits '17-Up M8 Twin-Cooled™ Motors Features Quieter and smoother engine operation Increase oil pressure, scavenge volume and engine oil flow 15-35 degree cooler engine temperatures 15-30 degree cooler oil...