Engine
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Out of stock
V-Twin - 42-0313 - Chrome Smooth Starter Relay Cover Kit - Fits 1965-1984 Harley-Davidson FL, FLH
V-Twin Mfg
$51.49Starter relay cover kit features a smooth chrome finish and includes hardware. Fits:FL 1965-1984FLH 1965-1984Additional Information OEM No.66425$51.49 -
Out of stock
V-Twin - 40-9998 - Rear Chain Oiler Line - Fits 1941-1973 Harley-Davidson G, 1941-1952 WL
V-Twin Mfg
MSRP: $76.37$75.60Rear Chain Oiler Line Fits:G 1941-1973WL 1941-1952Additional Information OEM No.63590-41 UOMMSRP: $76.37$75.60 -
Out of stock
V-Twin - 40-9911 - Chrome Billet Oil Filter Bracket
Wyatt Gatling
$172.15V-Twin - 40-9911 - Chrome Billet Oil Filter BracketDescriptionThis billet contour oil filter bracket includes chrome filter. This bracket has a long design to cover oil lines and connections...$172.15 -
Out of stock
V-Twin - 40-1875 - Stainless Steel OHO Top Oil Line - Fits 1973-1984 Harley-Davidson FX, 1966-1984 FL
V-Twin Mfg
$92.40Stainless steel OHO top oil line for "Knucklehead" with Shovelhead retro rocker box set.Use on Knucklehead rocker box cover set. Fits:FX 1973-1984FL 1966-1984Additional Information$92.40 -
Out of stock
V-Twin - 40-1418 - Knucklehead/Shovelhead Top Y Oil Line Braided - Fits 1973-1984 Harley-Davidson FX, 1966-1984 FL
V-Twin Mfg
$116.34Braided top Y oil line is for use with front adn rear "Knucklehead" shape rocker boxes for Shovelhead models. Fits:FX 1973-1984FL 1966-1984Additional Information$116.34 -
Out of stock
V-Twin - 40-0865 - Magnetek Oil Filter - Fits 1982-1984 Harley-Davidson FX, FL, 1980-1983 XL
V-Twin Mfg
MSRP: $19.86$19.66The chrome hex oil filter is 2-1/2" long Fits:FX 1982-1984FL 1982-1984XL 1980-1983Additional Information UOM1 - EAMSRP: $19.86$19.66 -
Out of stock
V-Twin - 40-0796 - Oil Filter Assembly
Wyatt Gatling
$122.72V-Twin - 40-0796 - Oil Filter AssemblyDescriptionEarly style oil filter features a chrome standard spin on filter.Assembly has seal on the oil filter only, no gaskets or seals on the housing. Brake...$122.72 -
Out of stock
V-Twin - 40-0753 - Spin On Oil Filter - Fits 1979-1983 Harley-Davidson XL
V-Twin Mfg
$11.74Our chrome spin on oil filter is 2-1/2" and features a black resin impregnated paper that will remove foreign particles from the oil. Fits:XL 1979-1983Additional Information$11.74 -
Out of stock
V-Twin - 40-0751 - OE Oil Filter
OE
MSRP: $15.86$15.70V-Twin - 40-0751 - OE Oil FilterDescriptionOE chrome oil filter is 5-1/2" and features a black resin impregnated paper that will remove foreign particles from the oil. Fits:FXD 1991-1998Additional...MSRP: $15.86$15.70 -
Out of stock
V-Twin - 40-0734 - Oil Filter Kit - Fits 1958-1964 Harley-Davidson FL
V-Twin Mfg
$125.61Oil filter kit with chrome canister filter. Fits:FL 1958-1964Additional Information UOM1 - KIT Manufacturer$125.61 -
Out of stock
V-Twin - 40-0724 - Perf-form Spin On Oil Filter
Perf-Form
MSRP: $21.94$20.50V-Twin - 40-0724 - Perf-form Spin On Oil FilterDescriptionThe chrome spin on oil filter is 3-1/4" long Fits:FLST 1999-2017FXST 1999-2017FXD 1999-2017FLT 1999-2017Additional InformationMSRP: $21.94$20.50 -
Out of stock
V-Twin - 40-0722 - Chrome Spin On Oil Filter
Wyatt Gatling
MSRP: $22.30$20.85V-Twin - 40-0722 - Chrome Spin On Oil FilterDescriptionOur oil filters have a proven service record and are made to provide superior performance and reliablity. Our filters also contain a pressure...MSRP: $22.30$20.85 -
Out of stock
V-Twin - 40-0711 - Spin-On Oil Filter - Fits 1982-1984 Harley-Davidson FX, FL, 1980-1983 XL
V-Twin Mfg
$15.72Chrome spin- on oil filter features hex nut end for easy removal and installation. Filter is 2-1/2" long Fits:FX 1982-1984FL 1982-1984XL 1980-1983Additional Information$15.72 -
Out of stock
V-Twin - 40-0710 - K&N Spin On Oil Filter Chrome
Wyatt Gatling
MSRP: $13.64$13.50V-Twin - 40-0710 - K&N Spin On Oil Filter ChromeDescriptionK&N chrome spin on oil filter features hex nut end for easy removal and installation. Filter is 2-1/2" long. Fits:FX 1982-1984FL 1982-1984XL...MSRP: $13.64$13.50 -
Out of stock
V-Twin - 40-0564 - Oil Filter Kit - Fits 1940-1947 Harley-Davidson FL
V-Twin Mfg
$143.65This Knucklehead oil filter kit includes chrome filter assembly and a zinc plated bracket that mounts to the rear Knucklehead rocker box bolt.This kit does not include oil lines and fittings, must...$143.65 -
Out of stock
V-Twin - 40-0522 - Oil Line Vent Nipple - Fits 1936-1952 Harley-Davidson WL, 1936-1973 G
V-Twin Mfg
$26.05This vent nipple is for Flathead and Servi-Car oil lines. Fits:WL 1936-1952G 1936-1973Additional Information OEM No.25235-36$26.05 -
Out of stock
V-Twin - 40-0431 - Replacement Filter
Perf-Form
MSRP: $21.88$20.45V-Twin - 40-0431 - Replacement FilterDescriptionReplacement filter element HD-X Fits:Custom applicationAdditional Information UOMMSRP: $21.88$20.45 -
Out of stock
V-Twin - 40-0380 - Perf-form Oil Filter Unit
Perf-Form
MSRP: $19.88$19.68V-Twin - 40-0380 - Perf-form Oil Filter UnitDescriptionOur drop in oil filter from Perf-form includes the spring and o-ring. Unit is a complete drop in replacement.This patented design features our...MSRP: $19.88$19.68 -
Out of stock
V-Twin - 40-0379 - Perf-form Spin On Oil Filter
Perf-Form
MSRP: $17.88$17.70V-Twin - 40-0379 - Perf-form Spin On Oil FilterDescriptionThis Perf-form spin on black oil filter is 2-1/2" long and will not fit fuel injected models Fits:FX 1982-1984 Except FXSTXL 1980-1983FL...MSRP: $17.88$17.70 -
Out of stock
V-Twin - 40-0378 - Perf-form Spin On Oil Filter
Perf-Form
MSRP: $19.88$19.68V-Twin - 40-0378 - Perf-form Spin On Oil FilterDescriptionThis spin on black oil filter is 3-3/4" long. Filter is 3/4" longer than stock and will not fit fuel injected models. Fits:FXST 1984-1998FXR...MSRP: $19.88$19.68 -
Out of stock
V-Twin - 40-0363 - Perf-form Spin On Oil Filter
Perf-Form
MSRP: $19.86$19.66V-Twin - 40-0363 - Perf-form Spin On Oil FilterDescriptionThis Perf-form spin on chrome oil filter is 2-1/2" long Fits:FX 1982-1984 Except FXSTXL 1980-1984 Early 1984FL 1982-1984Additional InformationMSRP: $19.86$19.66 -
Out of stock
V-Twin - 40-0348 - Dual Tube Vertical Style Oil Cooler Kit - Fits 1986-1999 Harley-Davidson FLST, FXST
V-Twin Mfg
$242.28Oil cooler kit includes billet dual tube vertical oil cooler with billet mount clamps measuring 10" long and 4-1/8" top diameter. Fits:FLST 1986-1999FXST 1986-1999Additional Information$242.28 -
Out of stock
V-Twin - 40-0344 - Oil Cooler Kit Dual Tube Vertical Type - Fits 2000-2006 Harley-Davidson FXD
V-Twin Mfg
$290.50Sifton chrome oil cooler kit includes oil cooler, clamp set, clamp set, Sifton oil filter adapter, smooth hose end set, oil filter, braided hose, and hardware. Fits:FXD 2000-2006Additional Information$290.50 -
Out of stock
V-Twin - 40-0339 - Dual Cool Oil Cooler Chrome
Wyatt Gatling
MSRP: $81.55$80.73V-Twin - 40-0339 - Dual Cool Oil Cooler ChromeDescriptionChrome dual cool oil cooler has a 1-1/8" outer diameter x 9" long tubes x 3-3/4" wide with reversible top bracket.*NOTE: Must order clamps and...MSRP: $81.55$80.73 -
Out of stock
V-Twin - 40-0325 - Oil Feed Valve Assembly Zinc Plated
Wyatt Gatling
MSRP: $81.92$81.09V-Twin - 40-0325 - Oil Feed Valve Assembly Zinc PlatedDescriptionZinc plated oil feed valve assembly is the fitting with the valve installed.*NOTE: Includes OEM #3504-37A Valve Body, OEM #3504-37B...MSRP: $81.92$81.09 -
Out of stock
V-Twin - 40-0306 - Sifton Oil Cooler Horizontal Mount Style
Wyatt Gatling
$281.17V-Twin - 40-0306 - Sifton Oil Cooler Horizontal Mount StyleDescriptionSifton, replica, chrome oil cooler is horizontal mount style which features brass fins, and four rows of cooling tubes encased by...$281.17 -
Out of stock
V-Twin - 40-0178 - Oil Filter Kit - Fits 1992-1999 Harley-Davidson FXST, FLST
V-Twin Mfg
$146.53Oil filter kit with chrome housing, lines, oil filter, and hardware.Filter bolts to right front side of engine. Fits:FXST 1992-1999FLST 1992-1999Additional Information$146.53 -
Out of stock
V-Twin - 40-0129 - Replica 'Y' Oil Line - Fits 1963-1965 Harley-Davidson FL
V-Twin Mfg
$63.70Replica zinc plated 'Y' oil line is for use on stock 1963-1965 Panheads, or on STD heads for outside oiling.Timing cover must be drilled for oil feed to this line. Fits:FL 1963-1965Additional...$63.70 -
Out of stock
V-Twin - 40-0116 - Oil Line Kit
Wyatt Gatling
MSRP: $39.87$39.07V-Twin - 40-0116 - Oil Line KitDescriptionChrome oil line kit for rocker boxes which include fittings and seals. Fits:XL 1957-1970 MagnetoAdditional InformationMSRP: $39.87$39.07 -
Out of stock
V-Twin - 40-0097 - Pura Flow Oil Filter Kit - Fits 1957-1977 Harley-Davidson XLH, XLCH
V-Twin Mfg
$93.89This Pura Flow oil filter kit includes left side motor mount plate, chrome filter and 3/8" x 5 foot hose with 1/4" clamps. Fits:XLH 1957-1977XLCH 1957-1977Additional Information$93.89 -
Out of stock
V-Twin - 40-0095 - Oil Filter Assembly
Wyatt Gatling
$106.81V-Twin - 40-0095 - Oil Filter AssemblyDescriptionChrome oil filter assembly features slip on hose fitting which can be substituted with screw in fittings to accept metal lineThe fittings includes are...$106.81 -
Out of stock
V-Twin - 3780-18 - Acorn Rocker Box Nut Kit Chrome
Colony Machine
$39.84V-Twin - 3780-18 - Acorn Rocker Box Nut Kit ChromeDescriptionAcorn rocker box nut kit includes chrome flanged nuts. Fits:FLT 1979-1983FL 1966-1983FXR 1982-1983FX 1966-1983Additional Information$39.84 -
Out of stock
V-Twin - 3755-3 - Chain Oiler Screw Kit Zinc
Colony Machine
MSRP: $15.88$15.72V-Twin - 3755-3 - Chain Oiler Screw Kit ZincDescriptionChain oil screw kit features a zinc finish and includes screw, washer and nut. Fits:FX 1972-1983 Early modelsFL 1972-1983 Early modelsAdditional...MSRP: $15.88$15.72 -
Out of stock
V-Twin - 3711-4 - Rocker Arm Spacer Set
Colony Machine
$26.06V-Twin - 3711-4 - Rocker Arm Spacer SetDescriptionRocker arm spacer set.Sold as a set of 4. Fits:FX 1971-1984FL 1966-1984Additional Information$26.06 -
Out of stock
V-Twin - 37-9521 - Cylinder Hardware Kit Chrome - Fits 1984-1991 Harley-Davidson FLT, FXR, 1991 FXD, 1986-1991 FLST, 1984-1991 FXST
V-Twin Mfg
$124.45Chrome cylinder hardware kit with studs, for 2 heads. Fits:FLT 1984-1991FXR 1984-1991FXD 1991-1991FLST 1986-1991FXST 1984-1991Additional Information$124.45 -
Out of stock
V-Twin - 37-9370 - Head Bolt Hardware Kit - Fits 1986-1992 Harley-Davidson XL
V-Twin Mfg
$135.41Head bolt hardware kit for one head. Fits:XL 1986-1992Additional Information UOM1 - KIT ManufacturerV$135.41 -
Out of stock
V-Twin - 37-9226 - Oil Pump Plug Set Allen Type
Gardner-Westcott
MSRP: $83.25$82.41V-Twin - 37-9226 - Oil Pump Plug Set Allen TypeDescriptionAllen type oil pump plug set. Fits:FLT 1981-1998FXST 1984-1998FXR 1982-1994FXD 1991-1998FL 1981-1984FLST 1986-1998FX 1981-1984Additional...MSRP: $83.25$82.41 -
Out of stock
V-Twin - 37-9079 - Skull Pushrod Cover Cup Set Gold
V-Twin Mfg
MSRP: $38.05$37.29V-Twin - 37-9079 - Skull Pushrod Cover Cup Set GoldDescriptionGold plated skull pushrod cover cup set.Sold as a 4 piece set. *NOTE Gold plate is very delicate. Do not Polish. *No warranty or returns...MSRP: $38.05$37.29 -
Out of stock
V-Twin - 37-8085 - Engine Dress Up Screw Kit Allen Chrome
Gardner-Westcott
$87.33V-Twin - 37-8085 - Engine Dress Up Screw Kit Allen ChromeDescriptionChrome allen engine dress up screw kit Fits:FLST 1986-1986FXST 1986-1986Additional Information$87.33 -
Out of stock
V-Twin - 37-7492 - Engine Dress Up Allen Screw Kit
Gardner-Westcott
$166.46V-Twin - 37-7492 - Engine Dress Up Allen Screw KitDescriptionEngine dress up short screw kit has allen screws. Fits:FL 1965-1965 PanheadAdditional Information$166.46
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.