Engine
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Out of stock
Cometic - C9850 - Top End Est Gasket Evo Big Twin Kit
Cometic
$140.45Cometic - C9850 - Top End Est Gasket Evo Big Twin KitFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of performance...$140.45 -
Out of stock
Cometic - C9855F - Complete Est Gasket Evo Sportster Kit Oe#17026-91B
Cometic
$199.43Cometic - C9855F - Complete Est Gasket Evo Sportster Kit Oe#17026-91BFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level...$199.43 -
Out of stock
Cometic - C9894 - Head Gasket .030" Twin Cam 2/Pk
Cometic
$59.50Cometic - C9894 - Head Gasket .030" Twin Cam 2/PkFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of performance for...$59.50 -
Out of stock
Cometic - C9944F1 - Sportster Cam Cover Gasket Sportster 1/Pk Oe#25263-90D
Cometic
$10.01Cometic - C9944F1 - Sportster Cam Cover Gasket Sportster 1/Pk Oe#25263-90DFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher...$10.01 -
Out of stock
Cometic - C9951 - Top End Est Gasket Twin Cam Kit
Cometic
$147.46Cometic - C9951 - Top End Est Gasket Twin Cam KitFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of performance for...$147.46 -
Out of stock
Cometic - C9970 - Top End Est Gasket Evo Sportster Kit Oe#17049-04
Cometic
$140.45Cometic - C9970 - Top End Est Gasket Evo Sportster Kit Oe#17049-04FeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of...$140.45 -
Out of stock
Cometic - C9971 - Top End Est Gasket Evo Sportster Kit Oe#17049-04
Cometic
$140.45Cometic - C9971 - Top End Est Gasket Evo Sportster Kit Oe#17049-04FeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of...$140.45 -
Out of stock
Cometic - C9997F1 - Derby Cover Gasket Big Twin Ea 1/Pk Oe#25416-99C
Cometic
$8.12Cometic - C9997F1 - Derby Cover Gasket Big Twin Ea 1/Pk Oe#25416-99CFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to match the higher level of...$8.12 -
Out of stock
James Gaskets - 11293-TC - Gasket Tap Cover Pushrod Tube Twin Cam All Kit 11293-Tc
James Gaskets
$20.95James Gaskets - 11293-TC - Gasket Tap Cover Pushrod Tube Twin Cam All Kit 11293-TcFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.Fitment2015-2017Harley DavidsonFLRT...$20.95 -
Out of stock
James Gaskets - 16770-86-S - Gasket Set Cyl Head/Base 3 5/8 Bore Kit 16770-86-S
James Gaskets
$51.95James Gaskets - 16770-86-S - Gasket Set Cyl Head/Base 3 5/8 Bore Kit 16770-86-S$51.95 -
Out of stock
James Gaskets - 17540-99-X - Rocker Cover Gasket .020 Metal W/Bead 2/Pk 17540-99-X
James Gaskets
$52.95James Gaskets - 17540-99-X - Rocker Cover Gasket .020 Metal W/Bead 2/Pk 17540-99-XFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.$52.95 -
Out of stock
James Gaskets - 31478-65-X - Gasket Screw Solen Pvt Arm 1/Pk 31478-65-X
James Gaskets
$13.50James Gaskets - 31478-65-X - Gasket Screw Solen Pvt Arm 1/Pk 31478-65-XFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.$13.50 -
Out of stock
James Gaskets - 17026-86 - Gasket Motor Sportster W/Metal Base Gaskets Kit 17026-86
James Gaskets
$173.95James Gaskets - 17026-86 - Gasket Motor Sportster W/Metal Base Gaskets Kit 17026-86FeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.$173.95 -
Out of stock
James Gaskets - 17030-07-X - Gasket Top End Sportstr W/ Metal Rkr Base Kit 17030-07-X
James Gaskets
$95.95James Gaskets - 17030-07-X - Gasket Top End Sportstr W/ Metal Rkr Base Kit 17030-07-XFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.Fitment2014-2017Harley...$95.95 -
Out of stock
James Gaskets - 18000-57-K - Gasket Seal Valve Stem In/Ex Early Xl Kit 18000-57-K
James Gaskets
$11.50James Gaskets - 18000-57-K - Gasket Seal Valve Stem In/Ex Early Xl Kit 18000-57-KFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.Fitment1972-1985Harley...$11.50 -
Out of stock
Kpmi - 20-4257 - Black Diamond Intake Valve Hd Panhead 48-65
KPMI
$30.95Kpmi - 20-4257 - Black Diamond Intake Valve Hd Panhead 48-65FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond®” process improves...$30.95 -
Out of stock
Kpmi - 20-4196 - Black Diamond Intake Valve Hd Sportster 70-83
KPMI
$37.55Kpmi - 20-4196 - Black Diamond Intake Valve Hd Sportster 70-83FeaturesAll KPMI Black Diamond® stainless steel valves are impregnated by a special German process to a depth of .002”, with a surface build up of .0002”. This “Black Diamond®” process...$37.55 -
Out of stock
Kpmi - 20-20122 - Spring Kit .600 Lift Hd Twin Cam
KPMI
$280.95Kpmi - 20-20122 - Spring Kit .600 Lift Hd Twin CamFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and shot peened to insure maximum performance and life. Springs are engineered for...$280.95 -
Out of stock
Kpmi - 20-2104 - Exhaust Spigot Hd Panhead
KPMI
$11.50Kpmi - 20-2104 - Exhaust Spigot Hd PanheadFeaturesReplacement exhaust spigot has been designed and machined from 6061-T6 Aluminum extruded tubingThis spigot allows you to rebuild the exhaust attachment point on you classic Panhead engine$11.50 -
Out of stock
Kpmi - 20-2050C - Guide Intake Std Cast Iron Hd Shovelhead 78-83
KPMI
$9.71Kpmi - 20-2050C - Guide Intake Std Cast Iron Hd Shovelhead 78-83FeaturesFitment1983Harley DavidsonFLHTC Electra Glide Classic1982-1983Harley DavidsonFXR Super Glide1980-1982Harley DavidsonFXB Sturgis1978-1983Harley DavidsonFXE Super Glide1979-1981Harley...$9.71 -
Out of stock
Kpmi - 20-4320 - Guide In / Ex Std. Bronze Hd Evolution 87-99
KPMI
$37.93Kpmi - 20-4320 - Guide In / Ex Std. Bronze Hd Evolution 87-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$37.93 -
Out of stock
Kpmi - 20-4320C - Guide In / Ex Std. Cast Iron Hd Evolution 87-99
KPMI
$9.71Kpmi - 20-4320C - Guide In / Ex Std. Cast Iron Hd Evolution 87-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$9.71 -
Out of stock
Kpmi - 20-4321 - Guide In / Ex +0.001 Bronze Hd Evolution 87-99
KPMI
$37.93Kpmi - 20-4321 - Guide In / Ex +0.001 Bronze Hd Evolution 87-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR...$37.93 -
Out of stock
Kpmi - 20-20700C - Guide Exhaust Std Cast Iron Hd Twin Cam 88-103" 05-11
KPMI
$11.95Kpmi - 20-20700C - Guide Exhaust Std Cast Iron Hd Twin Cam 88-103" 05-11FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-20701 - Guide Exhaust +0.001 Bronze Hd Twin Cam 88-103" 05-11
KPMI
$29.60Kpmi - 20-20701 - Guide Exhaust +0.001 Bronze Hd Twin Cam 88-103" 05-11FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$29.60 -
Kpmi - 20-20701C - Guide Exhaust +0.001 Cast Iron Hd Twin Cam 88-103" 05-11
KPMI
$11.95Kpmi - 20-20701C - Guide Exhaust +0.001 Cast Iron Hd Twin Cam 88-103" 05-11FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic...$11.95 -
Out of stock
Kpmi - 20-2033 - Guide Ex +0.003 Bronze Hd Pan 48-65 & Shovel 66-77
KPMI
$34.40Kpmi - 20-2033 - Guide Ex +0.003 Bronze Hd Pan 48-65 & Shovel 66-77$34.40 -
Out of stock
Kpmi - 20-2064C - Guide Ex +0.004 Cast Iron Hd Shovelhead 78-83
KPMI
$9.71Kpmi - 20-2064C - Guide Ex +0.004 Cast Iron Hd Shovelhead 78-83FeaturesFitment1983Harley DavidsonFLHTC Electra Glide Classic1982-1983Harley DavidsonFXR Super Glide1980-1982Harley DavidsonFXB Sturgis1980-1983Harley DavidsonFXE Super Glide1980-1981Harley...$9.71 -
Out of stock
Kpmi - 20-20702C - Guide Ex +.002 Cast Iron Hd Twin Cam 88-103 2005-13
KPMI
$11.95Kpmi - 20-20702C - Guide Ex +.002 Cast Iron Hd Twin Cam 88-103 2005-13FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-2130C - Guide Ex Std Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$8.95Kpmi - 20-2130C - Guide Ex Std Cast Iron Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$8.95 -
Out of stock
Kpmi - 20-4322C - Guide In / Ex +0.002 Iron Hd Evo 84-99
KPMI
$9.71Kpmi - 20-4322C - Guide In / Ex +0.002 Iron Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR Super...$9.71 -
Out of stock
Kpmi - 20-4323 - Guide In / Ex +0.003 Bronze Hd Evo 84-99
KPMI
$37.93Kpmi - 20-4323 - Guide In / Ex +0.003 Bronze Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR Super...$37.93 -
Out of stock
Kpmi - 20-4323C - Guide In / Ex +0.003 Ron Hd Evo 84-99
KPMI
$9.71Kpmi - 20-4323C - Guide In / Ex +0.003 Ron Hd Evo 84-99FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley DavidsonFXR Super...$9.71 -
Out of stock
Kpmi - 20-20692C - Guide In +.002 Cast Iron Hd Twin Cam 88"-103" 05-13
KPMI
$11.95Kpmi - 20-20692C - Guide In +.002 Cast Iron Hd Twin Cam 88"-103" 05-13FeaturesFitment2014-2017Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-2120 - Guide Intake Std Bronze Hd Evo 84-99 Sportster 86-03
KPMI
$31.71Kpmi - 20-2120 - Guide Intake Std Bronze Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$31.71 -
Out of stock
Kpmi - 20-2120C - Guide Intake Std Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$9.71Kpmi - 20-2120C - Guide Intake Std Cast Iron Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$9.71 -
Out of stock
Kpmi - 20-2123C - Guide Intake +0.003 Cast Iron Hd Evo 84-99 Sportster 86-03
KPMI
$9.71Kpmi - 20-2123C - Guide Intake +0.003 Cast Iron Hd Evo 84-99 Sportster 86-03FeaturesFitment1994-2004Harley DavidsonFLHR Road King1984-2004Harley DavidsonFLHTC Electra Glide Classic1989-2004Harley DavidsonFLHTCU Electra Glide Ultra Classic1986-1994Harley...$9.71 -
Out of stock
Kpmi - 20-20709C - Guide Ex +0.010 Cast Iron Hd Twin Cam 88-103" 05-10
KPMI
$11.95Kpmi - 20-20709C - Guide Ex +0.010 Cast Iron Hd Twin Cam 88-103" 05-10FeaturesFitment2014Harley DavidsonXL1200T Super Low Touring2015-2016Harley DavidsonFLRT Freewheeler2015-2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low2015-2016Harley...$11.95 -
Out of stock
Kpmi - 20-20780 - Wrist Pin Bushing Twin Cam 05-14
KPMI
$32.95Kpmi - 20-20780 - Wrist Pin Bushing Twin Cam 05-14 Features Designed and manufactured by KPMI® to original OEM dimensions with Kibblewhite® Quality and Precision These bushings have excellent anti friction qualities, good hardness, and...$32.95 -
Out of stock
Kpmi - 20-20570 - Wrist Pin Bushing Big Twin 48-99
KPMI
$15.95Kpmi - 20-20570 - Wrist Pin Bushing Big Twin 48-99FeaturesDesigned and manufactured by KPMI® to original OEM dimensions with Kibblewhite® Quality and PrecisionThese bushings have excellent anti friction qualities, good hardness, and resistance to wear...$15.95
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.