Engine
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Drag Specialties - Oil Pressure Switch fits '84-'99 Evolution Big Twin Models (Except '87-'98 FLHT/FLTR (OEM #26561-84))
Drag Specialties
$13.21Drag Specialties - Oil Pressure Switch fits '84-'99 Evolution Big Twin Models (Except '87-'98 FLHT/FLTR (OEM #26561-84)) Features: Precision-calibrated replacement oil pressure switches feature heavy contacts, brass pressure ferrules, thermo-plastic...$13.21 -
Colony - Allen Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80)
Colony Machine
$10.95Colony - Allen Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80) Features: Plug and plug kits designed for a variety of Harley-Davidson® oil systems Complete with washers (or O-rings if required) Made in the U.S.A...$10.95 -
Colony - 9883-20 Chrome Motor Case Bolt Kit fits '96-'98 Evolution Big Twin Models (OEM #3398, 3504A)
Colony Machine
$48.95Colony - 9883-20 Chrome Motor Case Bolt Kit fits '96-'98 Evolution Big Twin Models (OEM #3398, 3504A) Features: Includes all necessary hardware for bolting together the motor case Made in the U.S.A. Replacement Part for...$48.95 -
Colony - 11/16"-16 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-38)
Colony Machine
$8.95Colony - 11/16"-16 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-38) Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug holes Fitment 2000 Harley-Davidson FXR...$8.95 -
Colony - 8140-34 Motor Case Studs fits '70-'78 Big Twin Models (OEM #24806-36, 24815-40, 4432)
Colony Machine
$64.95Colony - 8140-34 Motor Case Studs fits '70-'78 Big Twin Models (OEM #24806-36, 24815-40, 4432) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A. Fitment 1978 Harley-Davidson Electra Glide...$64.95 -
Colony - Replacement Cylinder Stud Set fits '85-'99 Evolution Big Twin Models (OEM #16837-85B)
Colony Machine
$101.95Colony - Replacement Cylinder Stud Set fits '85-'99 Evolution Big Twin Models (OEM #16837-85B) Features: Heat-treated for strength and durability Equal or surpass original equipment Fitment 2000 Harley-Davidson FXR...$101.95 -
Colony - 9000-4 Acorn-Style Head Bolt Cover fits '84-'E85 Evolution Big Twin Models
Colony Machine
$27.95Colony - 9000-4 Acorn-Style Head Bolt Cover fits '84-'E85 Evolution Big Twin Models Features: Cover the unsightly factory 12-point headbolts; come complete with setscrews 7/16" size Fitment 1985 Harley-Davidson Fat Bob...$27.95 -
Colony - 8441-1 5/8"-18 Crankcase/Oil Tank Cap Timing Plug fits '86-'95 Sportster Model
Colony Machine
$7.95Colony - 8441-1 5/8"-18 Crankcase/Oil Tank Cap Timing Plug fits '86-'95 Sportster Model Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug holes Fitment 2000 Harley-Davidson FXR...$7.95 -
Colony - 11/16"-16 Acorn/Oversized Timing Plug Crankcase/Oil Tank with Special Tap fits '86-'95 Sportster Models
Colony Machine
$51.95Colony - 11/16"-16 Acorn/Oversized Timing Plug Crankcase/Oil Tank with Special Tap fits '86-'95 Sportster Models Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug...$51.95 -
Colony - 9876-2 Chrome Oil Screen Plug fits '70-'80 Big Twin Models (OEM #657)
Colony Machine
$10.95Colony - 9876-2 Chrome Oil Screen Plug fits '70-'80 Big Twin Models (OEM #657) Features: Oil Screen plug for Big Twin models Made in the USA Fitment 1984 Harley-Davidson Electra Glide Special...$10.95 -
Colony - 9644-2 Chrome OEM-Style Oil Pump Plug fits '84-'99 Evolution Big Twin Models (OEM #26263-80)
Colony Machine
$10.95Colony - 9644-2 Chrome OEM-Style Oil Pump Plug fits '84-'99 Evolution Big Twin Models (OEM #26263-80) Features: Made in the U.S.A. Fitment 1999 Harley-Davidson Softail Night Train FXSTB - - 1998 Harley-Davidson Road King...$10.95 -
Feuling - 543 Series HP+® Chain Drive Camchest Kit fits '99-'06 Twin Cam Models (Except '06 Dyna Glide)
Feuling
MSRP: $1,795.95$1,595.95Feuling - 543 Series HP+® Chain Drive Camchest Kit fits '99-'06 Twin Cam Models (Except '06 Dyna Glide) Features: For '99-'06 Twin Cam except for '06 Dyna All necessary components from top-to-bottom of the camchest Provide maximum...MSRP: $1,795.95$1,595.95 -
Drag Specialties - Rear Brake Master Cylinder Cover Kit fits '99-'04 Touring, '00-'05 Softail Models (OEM#s 45057-99, 42455-99, 45042-99,45149-99C)
Drag Specialties
$22.39Drag Specialties - Rear Brake Master Cylinder Cover Kit fits '99-'04 Touring, '00-'05 Softail Models (OEM#s 45057-99, 42455-99, 45042-99,45149-99C) Features: Includes gasket and mounting screws Fitment 2005 Harley-Davidson Softail...$22.39 -
V-Twin - Black V₂ Rocker Box Set fits '92-'99 Big Twin Models
V-Twin Manufacturing
$409.61V-Twin - Black V₂ Rocker Box Set fits '92-'99 Big Twin Models ViTwin's V₂ Rocker Box Set is an exact, machined die-cast cover. The set is complete with six pieces, including all of the necessary gaskets for installation on both heads. Fitment FLT...$409.61 -
V-Twin - Black V₂ Rocker Box Set fits '84-'91 Big Twin Models
V-Twin Manufacturing
$328.01V-Twin - Black V₂ Rocker Box Set fits '84-'91 Big Twin Models ViTwin's V₂ Rocker Box Set is an exact, machined die-cast cover. The set is complete with six pieces, including all of the necessary gaskets for installation on both heads. Fitment FLT...$328.01 -
Performance Machine - Scallop Cam Cover fits '01-'17 Twin Cam Models W/O Cam Position Cover
Performance Machine
$398.95Performance Machine - Scallop Cam Cover fits '01-'17 Twin Cam Models W/O Cam Position Cover The Formula Cam Covers from Performance Machine feature a special polycarbonate lens for a glimpse inside the machine! Available in your choice of a Chrome,...$398.95 -
On Sale
Arlen Ness - 10-Gauge Cam Cover fits '17-'22 M8 Models
Arlen Ness
MSRP: $329.95Now: $296.96Was: $329.95Arlen Ness - 10-Gauge Cam Cover fits '17-'22 M8 Models This gauge cover is available in your choice of a chrome, black anodized w/ machined accents, titanium anodized or black anodized finish. Features Machined from 6061 T-6 forged aluminum Replaces OEM...MSRP: $329.95Now: $296.96Was: $329.95 -
Drag Specialties - Cam Cover fits '17-'22 M8 Models (Repl. OEM #25700367) - Matte Black
Drag Specialties
$122.35Drag Specialties - Cam Cover fits '17-'22 M8 Models (Repl. OEM #25700367) - Matte Black This cam cover accepts OEM gaskets and mounting hardware. Features Die-cast aluminum construction Accepts OEM-style time...$122.35 -
Roland Sands Design - Nostalgia Points Cover fits '70-'99 Big Twin (Exc. Twin Cam Models) & '14-'21 Sportster Models (Exc. '21 Sportster S/RH 1250S Models)
Roland Sands Design
MSRP: $149.95$126.95Roland Sands Design - Nostalgia Points Cover fits '70-'99 Big Twin (Exc. Twin Cam Models) & '14-'21 Sportster Models (Exc. '21 Sportster S/RH 1250S Models) This points cover is machined from billet aluminum to exacting standards. Features Custom...MSRP: $149.95$126.95 -
Drag Specialties - Rocker Box Cover fits '66-'84 Shovelhead Models - Polished Aluminum
Drag Specialties
$883.27Drag Specialties - Rocker Box Cover fits '66-'84 Shovelhead Models - Polished Aluminum This cover comes to you in a stunning polished aluminum finish. Features Includes both front and rear...$883.27 -
Drag Specialties - Rocker Box Cover fits '66-'84 Shovelhead Models - Chrome
Drag Specialties
$913.87Drag Specialties - Rocker Box Cover fits '66-'84 Shovelhead Models - Chrome This cover comes to you in a nice chrome finish. Features Includes both front and rear pieces Fitment 1984 Harley-Davidson Electra Glide Special...$913.87 -
Feuling - ARP 12-Point Rocker Cover Fastener Bolt Kit - Evolution fits '84-'99 Big Twin Models
Feuling
$119.95Feuling - ARP 12-Point Rocker Cover Fastener Bolt Kit - Evolution fits '84-'99 Big Twin Models This kit features quality, 12-point heat-treated 8740 chrome moly steel bolts with a black oxide finish and/or Chrome depending on your selection. There are...$119.95 -
Feuling - Dress Up Engine Case Bolt Fastener Kit fits '18-'22 Softail Models
Feuling
$119.95Feuling - Dress Up Engine Case Bolt Fastener Kit fits '18-'22 Softail Models This kit features precision-rolled threads for the utmost engagement in order to prevent galling and deliver better consistent torque loading. The wide underhead flange design...$119.95 -
Feuling - 12-Point External Engine Fastener Kit fits '18-'22 Softail Models
Feuling
$399.95Feuling - 12-Point External Engine Fastener Kit fits '18-'22 Softail Models This kit comes with a cam cover, lifter covers, rocker covers, case bolts, washers, center head bolts/horn/engine mount, oil line mounting bases, head mount bolts, head...$399.95 -
On Sale
S&S Cycle - 100" Power Packages fits '99-'06 Twin Cam Engines (Exc. '06 Dynas)
S&S Cycle
$3,011.36 - $3,121.16S&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...$3,011.36 - $3,121.16 -
On Sale
S&S Cycle - Chain-Drive Camchest Kits W/ 510C Standard Cams for '99-'06 Twin Cam (Except '06 Dyna)
S&S Cycle
MSRP: $2,019.95Now: $1,854.86Was: $2,060.95S&S Cycle - Chain-Drive Camchest Kits W/ 510C 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...MSRP: $2,019.95Now: $1,854.86Was: $2,060.95 -
On Sale
S&S Cycle - Chain-Drive Camchest Kits W/ 585C Standard Cams for '07-'17 Twin Cam, '06 Dyna
S&S Cycle
MSRP: $2,019.95Now: $1,854.86Was: $2,060.95S&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: $2,019.95Now: $1,854.86Was: $2,060.95 -
On Sale
S&S Cycle - Chain-Drive Camchest Kits W/ 585CE Easy Start Cams for '99-'06 Twin Cam (Except '06 Dyna)
S&S Cycle
MSRP: $2,179.95Now: $2,003.36Was: $2,225.95S&S Cycle - Chain-Drive Camchest Kits W/ 585CE Easy Start Cams for '99-'06 Twin Cam (Except '06 Dyna) NOTE: Part # 0925-1108 requires the use of high-lift valve springs (See "Also Bought" tab). Features Upgrade to S&S bolt-in performance...MSRP: $2,179.95Now: $2,003.36Was: $2,225.95 -
On Sale
S&S Cycle - Gear-Drive Camchest Kits W/ 509G Standard Cams for '99-'06 Twin Cam (Except '06 Dyna)
S&S Cycle
MSRP: $2,189.95Now: $1,799.96Was: $1,999.95S&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...MSRP: $2,189.95Now: $1,799.96Was: $1,999.95 -
On Sale
S&S Cycle - Gear-Drive Camchest Kits W/ 585GE Easy Start Cams for '99-'17 Twin Cam
S&S Cycle
$2,003.36 - $2,474.96S&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...$2,003.36 - $2,474.96 -
On Sale
S&S Cycle - Gear-Drive Camchest Kits W/ 551GE Easy Start Cams for '99-'17 Twin Cam
S&S Cycle
$2,003.36 - $2,121.26S&S Cycle - Gear-Drive Camchest Kits W/ 551GE 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...$2,003.36 - $2,121.26 -
On Sale
S&S Cycle - Gear-Drive Camchest Kits W/ 510G Standard Cams for '99-'17 Twin Cam
S&S Cycle
$1,799.96 - $2,010.56S&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...$1,799.96 - $2,010.56 -
Feuling - 630 Race Series® Chain Drive Camchest Kits for all '07-'17 Twin Cam and '06 Dyna Glide
Feuling
$1,825.95Feuling - 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...$1,825.95 -
Feuling - 594 Race Series® Chain Drive Conversion Camchest Kits for '99-'06 Twin Cam (Except '06 Dyna Glide)
Feuling
$1,999.95Feuling - 594 Race Series® Chain Drive Conversion Camchest Kits for '99-'06 Twin Cam (Except '06 Dyna Glide) NOTE: Conversion camshafts for '99-'06 Twin Cam engines use the '99-'06 inner cam journals with the '07-'16 outer cam journals permitting...$1,999.95 -
Feuling - 594 Race Series® Chain Drive Camchest Kits for All '07-'17 Twin Cam and '06 Dyna Glide
Feuling
$1,795.95Feuling - 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...$1,795.95 -
Feuling - 574 HP+® Gear Drive Camchest Kits for '99-'17 Twin Cam
Feuling
$1,595.95Feuling - 574 HP+® Gear Drive Camchest Kits for '99-'17 Twin Cam This camchest kit is available in two different fitments: (1) For all '07-'17 Twin Cam and '06 Dyna Glide, or (2) For all '99-'06 Twin Cam (Except '06 Dyna Glide). Please double-check...$1,595.95 -
Feuling - 525 HP+® Gear Drive Camchest Kits for '99-'17 Twin Cam
Feuling
$1,595.95Feuling - 525 HP+® Gear Drive Camchest Kits for '99-'17 Twin Cam This camchest kit is available in two different fitments: (1) For all '07-'17 Twin Cam and '06 Dyna Glide, or (2) For all '99-'06 Twin Cam (Except '06 Dyna Glide). Please double-check...$1,595.95 -
Feuling - OE+ 574 Hydraulic Cam Chain Conversion Camchest Kit for '99-'06 Twin Cam (Except '06 Dyna Glide)
Feuling
$1,719.95Feuling - OE+ 574 Hydraulic Cam Chain Conversion Camchest Kit for '99-'06 Twin Cam (Except '06 Dyna Glide) Features Feuling® complete camchest kits include all necessary components from top to bottom of the camchest conveniently packaged under...$1,719.95 -
Feuling - OE+ 543 Hydraulic Cam Chain Conversion Camchest Kit for '99-'06 Twin Cam (Except '06 Dyna Glide)
Feuling
$1,719.95Feuling - OE+ 543 Hydraulic Cam Chain Conversion Camchest Kit for '99-'06 Twin Cam (Except '06 Dyna Glide) Features Feuling® complete camchest kits include all necessary components from top to bottom of the camchest conveniently packaged under...$1,719.95 -
Roland Sands Design Clarity Cam Cover - fits '01-'17 Twin Cam w/o Cam Position Sensor ( exc. '01-'08 FL)
Roland Sands Design
MSRP: $519.95$494.95Roland 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™...MSRP: $519.95$494.95
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.