Harley-Davidson Engine Parts & Performance Upgrades

Get more out of your Harley-Davidson with engine and performance parts from Kruesi Originals. Explore camshafts, cam chest kits, air cleaners, fuel system components, and tuning upgrades.

Find engine components for Twin Cam, Milwaukee-Eight, Sportster, and other Harley-Davidson motorcycles to support your performance build.

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  • Blud Lubricants HAWGBLUD™ Engine Oil

    Blud Lubricants HAWGBLUD™ Engine Oil

    Blud Lubricants HAWGBLUD™ Engine Oil

    $35.00
    Sale price  $35.00 Regular price 
  • Big Bear Dyna Front Motor Mount

    Big Bear Dyna Front Motor Mount

    Big Bear Dyna Front Motor Mount

    $651.00
    Sale price  $651.00 Regular price 
  • Oil Filters

    Oil Filters

    Oil Filters

    $23.00
    Sale price  $23.00 Regular price 
  • S&S Complete Cam Chest Kits for M8 Models

    S&S Complete Cam Chest Kits for M8 Models

    S&S Complete Cam Chest Kits for M8 Models

    $2,491.00
    Sale price  $2,491.00 Regular price 
  • Motul Synthetic Primary Chaincase Oil for Big Twin

    Motul Synthetic Primary Chaincase Oil for Big Twin

    Motul Synthetic Primary Chaincase Oil for Big Twin

    $39.00
    Sale price  $39.00 Regular price 
  • Kruesi Originals Race-Spec Oversized Radiator for RH975 Nightster Models

    Kruesi Originals Race-Spec Oversized Radiator for RH975 Nightster Models

    Kruesi Originals Race-Spec Oversized Radiator for RH975 Nightster Models

    $1,440.00
    Sale price  $1,440.00 Regular price 
  • Alloy Art Gooden-Tite ISO Front Motor Mount for 1999-2008 Touring Models

    Alloy Art Gooden-Tite ISO Front Motor Mount for 1999-2008 Touring Models

    Alloy Art Gooden-Tite ISO Front Motor Mount for 1999-2008 Touring Models

    $164.00
    Sale price  $164.00 Regular price 
  • UltraCool Side Mount Oil Cooler Kit for 1991-2017 Harley-Davidson Dyna

    UltraCool Side Mount Oil Cooler Kit for 1991-2017 Harley-Davidson Dyna

    UltraCool Side Mount Oil Cooler Kit for 1991-2017 Harley-Davidson Dyna

    $854.00
    Sale price  $854.00 Regular price 
  • Feuling Rocker Stud Kit for M8 Models

    Feuling Rocker Stud Kit for M8 Models

    Feuling Rocker Stud Kit for M8 Models

    $212.00
    Sale price  $212.00 Regular price 
  • Drag Specialties Crankcase Breather Kit for 1999-2017 Big Twin

    Drag Specialties Crankcase Breather Kit for 1999-2017 Big Twin

    Drag Specialties Crankcase Breather Kit for 1999-2017 Big Twin

    $110.00
    Sale price  $110.00 Regular price 
  • S&S Tappet Cuffs Lifter Guides for 2017+ M8 Models

    S&S Tappet Cuffs Lifter Guides for 2017+ M8 Models

    S&S Tappet Cuffs Lifter Guides for 2017+ M8 Models

    $116.00
    Sale price  $116.00 Regular price 
  • S&S Cycle Quickee Adjustable Pushrod Kit for Twin Cam Models

    S&S Cycle Quickee Adjustable Pushrod Kit for Twin Cam Models

    S&S Cycle Quickee Adjustable Pushrod Kit for Twin Cam Models

    $488.00
    Sale price  $488.00 Regular price 
  • S&S Cycle Quickee Pushrod Kits (M8)

    S&S Cycle Quickee Pushrod Kits (M8)

    S&S Cycle Quickee Pushrod Kits (M8)

    $456.00
    Sale price  $456.00 Regular price 
  • Feuling Vented Dipstick

    Feuling Vented Dipstick

    Feuling Vented Dipstick

    $434.00
    Sale price  $434.00 Regular price 
  • Complete Transmission Gasket Kit for 1999–2017 Dyna Models

    Complete Transmission Gasket Kit for 1999–2017 Dyna Models

    Complete Transmission Gasket Kit for 1999–2017 Dyna Models

    $69.00
    Sale price  $69.00 Regular price 
  • Complete Twin Cam Top End Rebuild Gasket Kit

    Complete Twin Cam Top End Rebuild Gasket Kit

    Complete Twin Cam Top End Rebuild Gasket Kit

    $266.00
    Sale price  $266.00 Regular price 
  • Arlen Ness Stage 1 Big Sucker Replacement Air Filter

    Arlen Ness Stage 1 Big Sucker Replacement Air Filter

    Arlen Ness Stage 1 Big Sucker Replacement Air Filter

    $110.00
    Sale price  $110.00 Regular price 
  • Arlen Ness Big Sucker Stage 1 Air Cleaner for 1991–2022 Sportster XL

    Arlen Ness Big Sucker Stage 1 Air Cleaner for 1991–2022 Sportster XL

    Arlen Ness Big Sucker Stage 1 Air Cleaner for 1991–2022 Sportster XL

    $348.00
    Sale price  $348.00 Regular price 
  • Dark Horse Man O-War Motor Sprocket for 2017–2026 M8 Models

    Dark Horse Man O-War Motor Sprocket for 2017–2026 M8 Models

    Dark Horse Man O-War Motor Sprocket for 2017–2026 M8 Models

    $839.00
    Sale price  $839.00 Regular price 
  • Chrome Cam Cover for Twin Cam Models

    Chrome Cam Cover for Twin Cam Models

    Chrome Cam Cover for Twin Cam Models

    $187.00
    Sale price  $187.00 Regular price 
  • Feuling Crankshaft Runout Measuring Tool

    Feuling Crankshaft Runout Measuring Tool

    Feuling Crankshaft Runout Measuring Tool

    $188.00
    Sale price  $188.00 Regular price 
  • Trask Assault Charge High-Flow Air Cleaner for Gen 2 M8 Models

    Trask Assault Charge High-Flow Air Cleaner for Gen 2 M8 Models

    Trask Assault Charge High-Flow Air Cleaner for Gen 2 M8 Models

    $781.00
    Sale price  $781.00 Regular price 
  • S&S Precision Hydraulic Lifters for Twin Cam, M8 & Sportster XL

    S&S Precision Hydraulic Lifters for Twin Cam, M8 & Sportster XL

    S&S Precision Hydraulic Lifters for Twin Cam, M8 & Sportster XL

    $405.00
    Sale price  $405.00 Regular price 
  • Feuling HP+ Cam Chest Kits for M8 Models

    Feuling HP+ Cam Chest Kits for M8 Models

    Feuling HP+ Cam Chest Kits for M8 Models

    $2,598.00
    Sale price  $2,598.00 Regular price