Engine
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- Price
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S&S Cycle - Rocker Arm Stud Kit fits '17-'21 M8 Models
S&S Cycle
$122.95S&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...$122.95 -
S&S Cycle - 124" Hot Setup Kits
S&S Cycle
$7,104.95S&S Cycle - 124" Hot Setup Kits Are you a Twin Cam owner? Would you like to convert your stock engine to 124"? Then the S&S Hot Setup kit for Twin Cams is for you! The kit comes to you in a black powder-coat finish and features 4,125" bore...$7,104.95 -
S&S Cycle - 100" Power Packages fits '99-'06 Twin Cam Engines (Exc. '06 Dynas)
S&S Cycle
$3,396.95S&S Cycle - 100" Power Packages fits '99-'06 Twin Cam Engines (Exc. '06 Dynas) S&S Cycle has created the largest big-bore kits available today, without doing crankcase mods! This kit increases displacement to 100" ('99-'06) and the cylinders fit...$3,396.95 -
S&S Cycle - 540 Cam Chain Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'20 Twin-Cooled™ M8 Touring Models
S&S Cycle
MSRP: $1,846.95$1,721.95S&S Cycle - 540 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 are...MSRP: $1,846.95$1,721.95 -
S&S Cycle - 540 Cam Chain Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'20 Oil-Cooled M8 Touring Models
S&S Cycle
MSRP: $1,864.95$1,721.95S&S Cycle - 540 Cam Chain Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'20 Oil-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 are...MSRP: $1,864.95$1,721.95 -
Jagg - Low Mount 10-Row Horizontal Oil Cooler fits '84-'08 Touring Models
Jagg Oil Coolers
$449.95 - $574.95Jagg - Low Mount 10-Row Horizontal Oil Cooler fits '84-'08 Touring Models Jagg's 10-Row Low Mount Oil Cooler System was designed to help Twin Cam engines deliver optimum heat exchange and flow characteristics through the use of HyperFlow Technology...$449.95 - $574.95 -
Feuling - 12-Point Black Oxide Internal Engine Fastener Kit for '17-'25 M8 Softail
Feuling
$279.95Feuling - 12-Point Black Oxide Internal Engine Fastener Kit for '17-'25 M8 Softail Reduce the stress on your M8 cylinder heads with the help of this Internal Engine Fastener Kit. A stud transfers the stress from the standoff casting into the stud. Also...$279.95 -
Feuling - HP+® One-Piece Pushrods for '17-Up M8 Softail
Feuling
$179.95Feuling - HP+® One-Piece Pushrods for '17-Up M8 Softail Features Feuling highly recommends using one-piece pushrods instead of adjustable pushrods to maintain maximum cam/valve lift and reduce valvetrain harmonics and associated hydraulic lifter...$179.95 -
Feuling - 465 HP+ Chain Drive Camshaft Kit for '17-Up M8
Feuling
$529.95Feuling - 465 HP+ Chain Drive Camshaft Kit for '17-Up M8 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). Features Include...$529.95 -
S&S Cycle - Chain-Drive Camchest Kits W/ 585C Standard Cams for '07-'17 Twin Cam, '06 Dyna
S&S Cycle
MSRP: $2,060.95$1,924.95S&S Cycle - Chain-Drive Camchest Kits W/ 585C Standard Cams for '07-'17 Twin Cam, '06 Dyna Features Upgrade to S&S bolt-in performance chain-drive or gear-drive camshafts Improves engine performance - higher lift and optimized cam...MSRP: $2,060.95$1,924.95 -
S&S Cycle - Gear-Drive Camchest Kits W/ 509G Standard Cams for '99-'06 Twin Cam (Except '06 Dyna)
S&S Cycle
$2,029.95S&S Cycle - Gear-Drive Camchest Kits W/ 509G Standard Cams for '99-'06 Twin Cam (Except '06 Dyna) Features Upgrade to S&S bolt-in performance chain-drive or gear-drive camshafts Improves engine performance - higher lift and optimized cam...$2,029.95 -
S&S Cycle - Gear-Drive Camchest Kits W/ 585GE Easy Start Cams for '99-'17 Twin Cam
S&S Cycle
$2,259.95S&S Cycle - Gear-Drive Camchest Kits W/ 585GE Easy Start Cams for '99-'17 Twin Cam This camchest kit is available in two different fitments: (1) For '07-'17 Twin Cam and '06 Dyna, or (2) For '99-'06 Twin Cam (Except '06 Dyna). Please double-check...$2,259.95 -
S&S Cycle - Gear-Drive Camchest Kits W/ 510G Standard Cams for '99-'17 Twin Cam
S&S Cycle
$2,029.95 - $2,259.95S&S Cycle - Gear-Drive Camchest Kits W/ 510G Standard Cams for '99-'17 Twin Cam This camchest kit is available in two different fitments: (1) For '07-'17 Twin Cam and '06 Dyna, or (2) For '99-'06 Twin Cam (Except '06 Dyna). Please double-check the...$2,029.95 - $2,259.95 -
Feuling - 630 Race Series® Chain Drive Camchest Kits for all '07-'17 Twin Cam and '06 Dyna Glide
Feuling
$1,879.95Feuling - 630 Race Series® Chain Drive Camchest Kits for all '07-'17 Twin Cam and '06 Dyna Glide Features All necessary components from top to bottom of the camchest All parts work and function together in total harmony Provide maximum...$1,879.95 -
Feuling - 594 Race Series® Chain Drive Camchest Kits for All '07-'17 Twin Cam and '06 Dyna Glide
Feuling
$1,879.95Feuling - 594 Race Series® Chain Drive Camchest Kits for All '07-'17 Twin Cam and '06 Dyna Glide Features All necessary components from top to bottom of the camchest All parts work and function together in total harmony Provide maximum...$1,879.95 -
S&S Cycle - 475 Cam Gear Drive Camchest Kit W/ Gloss Black Pushrod Tubes fits '17-'21 Oil-Cooled M8 Models
S&S Cycle
$1,924.95S&S Cycle - 475 Cam Gear Drive Camchest Kit W/ Gloss Black 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...$1,924.95 -
S&S Cycle - 465 Cam Gear Drive Camchest Kit W/ Gloss Black Pushrod Tubes fits '17-'21 Oil-Cooled M8 Models
S&S Cycle
$1,924.95S&S Cycle - 465 Cam Gear Drive Camchest Kit W/ Gloss Black Pushrod Tubes fits '17-'20 Oil-Cooled M8 Models Features Oil Pump/Cam Plate: Precision Machined from Billet Aluminum Blue Anodized Finish Passage Plugs Removable for servicing Independent...$1,924.95 -
S&S Cycle - 465 Cam Gear Drive Camchest Kit W/ Gloss Black Pushrod Tubes fits '17-'21 Twin-Cooled M8 Models
S&S Cycle
$1,924.95S&S Cycle - 465 Cam Gear Drive Camchest Kit W/ Gloss Black Pushrod Tubes fits '17-'20 Twin-Cooled M8 Models Features Precision Machined from Billet Aluminum Blue Anodized Finish Passage Plugs Removable for servicing Independent Scavenge Sections for...$1,924.95 -
S&S Cycle - 475 Cam Gear Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'21 Twin-Cooled M8 Models
S&S Cycle
$1,924.95S&S Cycle - 475 Cam Gear Drive Camchest Kit W/ Chrome Pushrod Tubes fits '17-'20 Twin-Cooled M8 Models Features Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain drive Reverses...$1,924.95 -
Feuling - High-Load Beehive® Factory Style 6mm Valve Stems and Triple Groove Valve Springs with Titanium Retainers Fits Harley '17-Up M8 Model
Feuling
$609.95Feuling - High-Load Beehive® Factory Style 6mm Valve Stems and Triple Groove Valve Springs with Titanium Retainers Fits Harley '17-Up M8 Model Features Machined from a premium grade Hi-tensile chrome silicon single conical ovate wire, shot-peened...$609.95 -
Feuling - Endurance Beehive® Standard 6mm Valve Stem Valve Springs with Titanium Retainers Fits Harley '17-Up M8 Model
Feuling
$609.95Feuling - 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...$609.95 -
Feuling - 465 HP+ Camchest Kit fits '17-Up M8 Twin-Cooled™ Motors
$1,795.95Feuling - 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...$1,795.95 -
Feuling - 465 HP+ Camchest Kit fits '17-Up M8 Oil-Cooled Motors
$1,795.95Feuling - 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...$1,795.95 -
Rough Crafts - Grooved Cam Cover fits '17 & Up M8 Softail Models (Choose Finish)
Rough Crafts
$359.95Rough Crafts - Grooved Cam Cover fits '17 & Up M8 Softail Models These Grooved Cam 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...$359.95 -
Rough Crafts - Grooved Rocker Box Cover fits '17 & Up M8 Softail Models (Choose Finish)
Rough Crafts
$699.95 - $769.95Rough 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...$699.95 - $769.95 -
S&S Cycle - 128" Power Packages fits '17-'21 M8 Water/Oil-Cooled Engines
S&S Cycle
$3,289.95 - $3,359.95S&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...$3,289.95 - $3,359.95 -
Colony Machine - Engine Bolt Kits fits '17-'21 Touring Models
Colony Machine
$243.95Colony Machine - Engine Bolt Kits fits '17-'20 Touring Models The Colony Machine Engine Bolt Kit is a fully equipped, chrome plated kit that is 100% manufactured in the U.S.A. Colony Machine is a choice brand among custom motorcycle builders,...$243.95 -
Performance Machine - Rocker Box Covers fits '17-'21 M-Eight
Performance Machine
$1,026.95Performance 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...$1,026.95 -
Roland Sands Design Clarity Cam Cover - fits '01-'17 Twin Cam w/o Cam Position Sensor ( exc. '01-'08 FL)
Roland Sands Design
$571.95Roland Sands Design Clarity Cam Cover - fits '01-'17 Twin Cam w/o Cam Position Sensor ( exc. '01-'08 FL) Features Allows for viewing of the internal moving engine components CNC-machined from billet aluminum Hardware included Contrast Cut™...$571.95 -
Feuling Reaper 521 Camshaft for Harley Milwaukee Eight 2017-Up
$319.95Feuling Reaper 521 Camshaft for Harley Milwaukee Eight 2017-Up Description: Produce more power and torque in the riding rpm range, improving throttle response, acceleration and fuel mileage Smooth camshaft lobe ramps are easier on valvetrain...$319.95 -
Paughco - Rear Heat Shield for Drag Pipes DBC-2620
Paughco
$139.95Paughco Rear Heat Shield for Drag Pipes (DBC-2620) This heat shield is made for use with the Paughco Drag Pipes Fits Harley 70-84 FX Models w/ Swingarm Frame (DBC-2620).$139.95 -
Paughco - Rear Heat Shield for FX Models
Paughco
$139.95Paughco Front Heat Shield This heat shield is made for use with various Paughco brand exhaust systems.$139.95 -
Paughco - Rear Heat Shield
Paughco
$139.95Paughco Rear Heat Shield This heat shield is made for use with various Paughco brand exhaust systems.$139.95 -
S&S - Valve Spring Kit - Fits Harley '17-'18 M8 Models
S&S Cycle
$395.95S&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,...$395.95 -
Drag Specialties - Top Motor Mount - Fits Harley '86-'94 Sportster XL Models
Drag Specialties
$67.93Drag Specialties Top Motor Mount Top Motor Mount for your Harley Sportster by Drag Specialties. Features: High-quality, chrome motor mount Bolts not included unless noted Fitment: YearMakeModel 1986 - 1987 Harley-Davidson XLH...$67.93 -
Feuling - 12 Point Engine Fastener Kit - fits '18 Softail
$309.95Feuling 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...$309.95 -
Gardner-Westcott - Rocker Box Cover Sets
Gardner-Westcott
$35.95 - $53.95Gardner-Westcott Rocker Box Cover Sets: Made in the USA '66-'81, '81-'84 Shovelhead requires drilling to 3/8 diameter hole All Sets are chrome plated except for the one polished option$35.95 - $53.95 -
HardDrive - Oil Filter Housing
HardDrive
$89.95The HarDrive Oil Filter Housing: Meets OEM specifications Chrome finish Accepts all EVO style oil filters$89.95 -
On Sale
Feuling - Oil Pumps - fits '99-'06 Twin Cam (exc. '06 Dyna)
MSRP: $507.95Now: $499.99Was: $507.95Fueling Oil Pumps : 7075 billet aluminum with military spec hard anodized, blue printed and designed for the racer The 7075 alloy is 50% harder and stronger then 6061 aluminum and holds tighter tolerance under temperature More pressure volume and...MSRP: $507.95Now: $499.99Was: $507.95 -
S&S - Billet Oil Pump Kit - fits '78-'84 Big Twin Models
S&S Cycle
$715.95The S&S Billet Oil Pump Kit: Kit includes oil pump, universal cover with top and bottom feeds, mounting bolts, supply and return gears, drive shaft with keys and snap rings, check ball and spring, pressure relief valve and spring, check ball and...$715.95
Harley Engine
At Deadbeat Customs, we offer a wide selection of Harley engine parts built for performance, reliability, and long-lasting power. Whether you're rebuilding a vintage motor or upgrading a modern setup, we’ve got the top-end and bottom-end components you need to get the job done right.
We carry engine parts for a wide range of Harley Davidson models, including Dyna, Sportster, FXR, Touring, Softail, Shovelhead, and Panhead. From the classic Evo 1340 and Shovelhead to Twin Cam 88/96/103/110, and the modern Milwaukee-Eight 107/114/117, our catalog covers nearly every era of Harley engine design.
Choose from trusted brands like S&S Cycle, Fueling, Vance & Hines, and more—known for producing high-quality components that meet or exceed OEM standards.
Explore our full collection of Harley engine parts today and build your motor with confidence—because whether it’s vintage or modern, your Harley deserves the best from the inside out.