Engine
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- Quantity
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V-Twin - 15-0481 - Head Gasket .030
Cometic
$59.50V-Twin - 15-0481 - Head Gasket .030DescriptionCometic MLS head gasket .030 with 3-3/4" boreSold as a pair. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR 1984-1994FLST 1986-1998Additional Information UOM1 - SET ManufacturerCometic ...$59.50 -
V-Twin - 15-0480 - V-Twin Head Gasket .040
Cometic
$36.24V-Twin - 15-0480 - V-Twin Head Gasket .040DescriptionHead gasket .040 with 3-13/16" boreSold as a pair. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR 1984-1994FLST 1986-1998Additional Information UOM1 - SET ManufacturerCometic ...$36.24 -
V-Twin - 15-0479 - V-Twin Head Gasket .030
Cometic
$36.24V-Twin - 15-0479 - V-Twin Head Gasket .030DescriptionHead gasket .030 with 3-13/16" boreSold as a pair. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR 1984-1994FLST 1986-1998Additional Information UOM1 - SET ManufacturerCometic ...$36.24 -
V-Twin - 15-0478 - V-Twin Head Gasket .040
Cometic
$36.24V-Twin - 15-0478 - V-Twin Head Gasket .040DescriptionHead gasket .040 with 3-5/8" boreSold as a pair. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR 1984-1994FLST 1986-1998Additional Information UOM1 - SET ManufacturerCometic OriginUSA ...$36.24 -
V-Twin - 15-0477 - Cylinder Head Gasket Set .030 inch
Cometic
$75.57V-Twin - 15-0477 - Cylinder Head Gasket Set .030 inchDescriptionCylinder head gasket set is .030 and features a 3-5/8" bore.Sold as a pair. Set can be used with 1270 XL big bore kit. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR...$75.57 -
V-Twin - 15-0476 - V-Twin Head Gasket .040
Cometic
$59.50V-Twin - 15-0476 - V-Twin Head Gasket .040DescriptionHead gasket .040 and 3-1/2" boreSold as a pair. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR 1984-1994FLST 1986-1998Additional Information UOM1 - SET ManufacturerCometic OriginUSA ...$59.50 -
V-Twin - 15-0475 - V-Twin Head Gasket .030
Cometic
$59.50V-Twin - 15-0475 - V-Twin Head Gasket .030DescriptionHead gasket .030 oversize 3-1/2" boreSold as a pair. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998XL 1986-2003FXR 1984-1994FLST 1986-1998Additional Information UOM1 - SET ManufacturerCometic ...$59.50 -
V-Twin - 15-0460 - Cylinder Base Gasket Set
Cometic
$21.94V-Twin - 15-0460 - Cylinder Base Gasket SetDescriptionCylinder base gasket set with 3-3/4" cylinder is constructed of .020" fiber. Fits:Special application for 3-3/4" boreAdditional Information OEM No.16777-86S UOM1 - SET ManufacturerCometic ...$21.94 -
Cometic - C10377-030 - Head Gasket - 4.250" - .030" - Center Cooled - MLS - M8
Cometic
$59.95Cometic - C10377-030 - Head Gasket - 4.250" - .030" - Center Cooled - MLS - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMLX Gasket...$59.95 -
Cometic - C10377 - Head Gasket - 4.250" - .040" - Center Cooled - MLS - M8
Cometic
$59.95Cometic - C10377 - Head Gasket - 4.250" - .040" - Center Cooled - MLS - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMLX Gasket...$59.95 -
Cometic - C10348-052 - Head Gasket - 4.500" - .052" - 4.515" ID Coolant - MLX - M8
Cometic
$86.00Cometic - C10348-052 - Head Gasket - 4.500" - .052" - 4.515" ID Coolant - MLX - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMLX Gasket...$86.00 -
Cometic - C10378-030 - Head Gasket - 4.310" - .036" - Center Cooled - MLS - M8
Cometic
$59.95Cometic - C10378-030 - Head Gasket - 4.310" - .036" - Center Cooled - MLS - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMLX Gasket...$59.95 -
Cometic - C10378 - Head Gasket - 4.310" - .040" - Center Cooled - MLS - M8
Cometic
$59.95Cometic - C10378 - Head Gasket - 4.310" - .040" - Center Cooled - MLS - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMLX Gasket...$59.95 -
Cometic - C9167 - Rocker Box Gasket Kit with seals 0.530" OD Value guides - Screamin' Eagle
Cometic
$56.65Cometic - C9167 - Rocker Box Gasket Kit with seals 0.530" OD Value guides - Screamin' EagleFeaturesPremium materials used for specific applications to provide a long, service free lifeInclude all gaskets, seals, O-rings and quality bolt seals needed when...$56.65 -
Bolt - 2008-DPW - Drain Plug Washers
Bolt
$74.00Bolt - 2008-DPW - Drain Plug WashersFeaturesSoft tempered aluminum washers designed to seal in fluidsMost OEMs recommend replacement at each oil or coolant changeIncludes a set of 50 of each: M6 drain plug washers, M8 drain plug washers, M10x18 drain...$74.00 -
Cometic - C9934 - Head Gasket - S&S Super Sidewinder - 4.125" - .045"
Cometic
$61.90Cometic - C9934 - Head Gasket - S&S Super Sidewinder - 4.125" - .045"FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMulti-Layer Steel (MLS) gasket...$61.90 -
Cometic - C9917 - Top End Gasket - 4" - S&S
Cometic
$142.75Cometic - C9917 - Top End Gasket - 4" - S&SFeaturesEST gasket kit includes embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber materialMaterial allows heat to be drawn away from the combustion ring and dissipated...$142.75 -
Cometic - C9933 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .040"
Cometic
$61.90Cometic - C9933 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .040"FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMulti-Layer Steel (MLS)...$61.90 -
Cometic - C9935 - Base Gasket - S&S Super Sidewinder Plus - +4.125" - .010"
Cometic
$33.55Cometic - C9935 - Base Gasket - S&S Super Sidewinder Plus - +4.125" - .010"FeaturesHigh quality products for long-term reliabilityManufactured from premium fuel-resistant materialsViton gaskets feature a stainless steel core with a .001" thick coating of...$33.55 -
Cometic - C9932 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .036"
Cometic
$61.90Cometic - C9932 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .036"FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMulti-Layer Steel (MLS)...$61.90 -
Cometic - C9931 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .030"
Cometic
$61.90Cometic - C9931 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .030"FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMulti-Layer Steel (MLS)...$61.90 -
Cometic - C9930 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .027"
Cometic
$61.90Cometic - C9930 - Head Gasket - S&S Super Sidewinder Plus - +4.125" - .027"FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleMulti-Layer Steel (MLS)...$61.90 -
Cometic - C9767 - Top End Gasket - Big Bore - Big Twin - EST
Cometic
$176.35Cometic - C9767 - Top End Gasket - Big Bore - Big Twin - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber materialHead gasket material allows heat to...$176.35 -
Cometic - C9766 - Top End Gasket Kit - Big Bore - Big Twin - EST
Cometic
$142.75Cometic - C9766 - Top End Gasket Kit - Big Bore - Big Twin - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber materialHead gasket material allows...$142.75 -
Cometic - C9765 - Rocker Gasket - EST - XL
Cometic
$65.05Cometic - C9765 - Rocker Gasket - EST - XLFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxesMade in the U.S...$65.05 -
Cometic - C9764 - Rocker Gasket - EST - XL
Cometic
$65.05Cometic - C9764 - Rocker Gasket - EST - XLFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxesMade in the U.S...$65.05 -
Cometic - C9763 - Top End Gasket Kit - XL1200 - EST
Cometic
$142.75Cometic - C9763 - Top End Gasket Kit - XL1200 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber materialHead gasket material allows heat to be drawn...$142.75 -
Cometic - C9752 - Rocker Gasket - EST - Big Twin
Cometic
$65.05Cometic - C9752 - Rocker Gasket - EST - Big TwinFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxesMade in...$65.05 -
Cometic - C9761 - Top End Gasket Kit - XL1100 - EST
Cometic
$142.75Cometic - C9761 - Top End Gasket Kit - XL1100 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber materialHead gasket material allows heat to be drawn...$142.75 -
Cometic - C9760 - Top End Gasket Kit - XL883 - EST
Cometic
$142.75Cometic - C9760 - Top End Gasket Kit - XL883 - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber materialHead gasket material allows heat to be drawn...$142.75 -
Cometic - C9553 - Cylinder Base Gasket - .020" - XL
Cometic
$33.55Cometic - C9553 - Cylinder Base Gasket - .020" - XLFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleViton® gasket features a stainless steel core with a ...$33.55 -
Cometic - C9555 - Cylinder Base Gasket - 3.625" - .020" - XL
Cometic
$33.55Cometic - C9555 - Cylinder Base Gasket - 3.625" - .020" - XLFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleViton® gasket features a stainless steel...$33.55 -
Cometic - C9552 - Cylinder Base Gasket - 3.625" - .020" - EVO
Cometic
$33.55Cometic - C9552 - Cylinder Base Gasket - 3.625" - .020" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleViton® gasket features a stainless steel...$33.55 -
Cometic - C9551 - Cylinder Base Gasket - 3.500" - .020" - EVO
Cometic
$33.55Cometic - C9551 - Cylinder Base Gasket - 3.500" - .020" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleViton® gasket features a stainless steel...$33.55 -
Cometic - C9588 - Rocker Box Gasket Kit - Twin Cam
Cometic
$46.15Cometic - C9588 - Rocker Box Gasket Kit - Twin CamFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxesMade in...$46.15 -
Cometic - C9745 - Head Gasket - 3.750" x .040" - 88"/96" - '99-'13 Twin Cam
Cometic
$61.90Cometic - C9745 - Head Gasket - 3.750" x .040" - 88"/96" - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleCFM is a composite material...$61.90 -
Cometic - C9721 - Head Gasket - 3.875" x .030" - 95"/103" - '99-'16 Twin Cam
Cometic
$61.90Cometic - C9721 - Head Gasket - 3.875" x .030" - 95"/103" - '99-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleCFM is a composite material...$61.90 -
Cometic - C9722 - Head Gasket - 3.875" x .040" - 95"/103" - '99-'16 Twin Cam
Cometic
$61.90Cometic - C9722 - Head Gasket - 3.875" x .040" - 95"/103" - '99-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleCFM is a composite material...$61.90 -
Cometic - C9690 - Head Gasket - 3.625" x .030" - '84-'99 EVO
Cometic
$61.90Cometic - C9690 - Head Gasket - 3.625" x .030" - '84-'99 EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleCFM is a composite material with a steel...$61.90 -
Cometic - C9688 - Head Gasket - Standard - 3.500" x .030" - '84-'99 EVO/'88-'22 XL 1200
Cometic
$61.90Cometic - C9688 - Head Gasket - Standard - 3.500" x .030" - '84-'99 EVO/'88-'22 XL 1200FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleCFM is a...$61.90
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.