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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  • Kruesi Originals Air Cleaner Cover

    Kruesi Originals Air Cleaner Cover

    Kruesi Originals Air Cleaner Cover

    $241.00
    Sale price  $241.00 Regular price 
  • CV Performance Carb Mod Kit

    CV Performance Carb Mod Kit

    CV Performance Carb Mod Kit

    $391.00
    Sale price  $391.00 Regular price 
  • Dyna Oil Pan Mod Kit for 1999–2017 Dyna

    Dyna Oil Pan Mod Kit for 1999–2017 Dyna

    Dyna Oil Pan Mod Kit for 1999–2017 Dyna

    $115.00
    Sale price  $115.00 Regular price 
  • Arlen Ness Big Sucker Stage 1 Air Cleaner for 1999–2017 Dyna Models

    Arlen Ness Big Sucker Stage 1 Air Cleaner for 1999–2017 Dyna Models

    Arlen Ness Big Sucker Stage 1 Air Cleaner for 1999–2017 Dyna Models

    $348.00
    Sale price  $348.00 Regular price 
  • FXR Division / TPJ Hi-Flow Intake for Pan America, Sportster S & Nightster

    FXR Division / TPJ Hi-Flow Intake for Pan America, Sportster S & Nightster

    FXR Division / TPJ Hi-Flow Intake for Pan America, Sportster S & Nightster

    $926.00
    Sale price  $926.00 Regular price 
  • Thundermax ECM with Integral Auto Tune System

    Thundermax ECM with Integral Auto Tune System

    Thundermax ECM with Integral Auto Tune System

    $1,576.00
    Sale price  $1,576.00 Regular price 
  • CV Carb Rebuild Kits

    CV Carb Rebuild Kits

    CV Carb Rebuild Kits

    $181.00
    Sale price  $181.00 Regular price 
  • Performance Spark Plug Wires

    Performance Spark Plug Wires

    Performance Spark Plug Wires

    $44.00
    Sale price  $44.00 Regular price 
  • Feuling HP+ Cam Chest Kit for 2007-2017 Twin Cam (Including 2006 Dyna)

    Feuling HP+ Cam Chest Kit for 2007-2017 Twin Cam (Including 2006 Dyna)

    Feuling HP+ Cam Chest Kit for 2007-2017 Twin Cam (Including 2006 Dyna)

    $2,387.00
    Sale price  $2,387.00 Regular price 
  • Arlen Ness Big Sucker Stage 1 Air Cleaner for M8 Touring Models

    Arlen Ness Big Sucker Stage 1 Air Cleaner for M8 Touring Models

    Arlen Ness Big Sucker Stage 1 Air Cleaner for M8 Touring Models

    $463.00
    Sale price  $463.00 Regular price 
  • Trask CheckM8 Vented Transmission Top Covers

    Trask CheckM8 Vented Transmission Top Covers

    Trask CheckM8 Vented Transmission Top Covers

    $507.00
    Sale price  $507.00 Regular price 
  • Trask Air Filter External Breather Kit

    Trask Air Filter External Breather Kit

    Trask Air Filter External Breather Kit

    $217.00
    Sale price  $217.00 Regular price 
  • Mikuni HSR42 Smoothbore Carburetor Easy Kit 42-18

    Mikuni HSR42 Smoothbore Carburetor Easy Kit 42-18

    Mikuni HSR42 Smoothbore Carburetor Easy Kit 42-18

    $666.00
    Sale price  $666.00 Regular price 
  • Feuling Rocker Box Breather Kit for Twin Cam

    Feuling Rocker Box Breather Kit for Twin Cam

    Feuling Rocker Box Breather Kit for Twin Cam

    $290.00
    Sale price  $290.00 Regular price 
  • Feuling HP+ Conversion Cam Chest Kit for 1999-2006 Twin Cam (Except 2006 Dyna)

    Feuling HP+ Conversion Cam Chest Kit for 1999-2006 Twin Cam (Except 2006 Dyna)

    Feuling HP+ Conversion Cam Chest Kit for 1999-2006 Twin Cam (Except 2006 Dyna)

    $2,806.00
    Sale price  $2,806.00 Regular price 
  • S&S Stealth Air Cleaner Kits

    S&S Stealth Air Cleaner Kits

    S&S Stealth Air Cleaner Kits

    $284.00
    Sale price  $284.00 Regular price 
  • Feuling OE+ Cam Chest Conversion Kit for 1999-2006 Twin Cam (Except 2006 Dyna)

    Feuling OE+ Cam Chest Conversion Kit for 1999-2006 Twin Cam (Except 2006 Dyna)

    Feuling OE+ Cam Chest Conversion Kit for 1999-2006 Twin Cam (Except 2006 Dyna)

    $2,662.00
    Sale price  $2,662.00 Regular price 
  • 1999-2017 Dyna Rear Motor Mount Isolator

    1999-2017 Dyna Rear Motor Mount Isolator

    1999-2017 Dyna Rear Motor Mount Isolator

    $307.00
    Sale price  $307.00 Regular price 
  • 1999-2017 Dyna Front Motor Mount Isolator

    1999-2017 Dyna Front Motor Mount Isolator

    1999-2017 Dyna Front Motor Mount Isolator

    $296.00
    Sale price  $296.00 Regular price 
  • Trask Assault Charge High-Flow Air Cleaner for Gen 1 M8 Models

    Trask Assault Charge High-Flow Air Cleaner for Gen 1 M8 Models

    Trask Assault Charge High-Flow Air Cleaner for Gen 1 M8 Models

    $781.00
    Sale price  $781.00 Regular price 
  • Trask Assault Charge High-Flow Air Cleaner for Twin Cam Models

    Trask Assault Charge High-Flow Air Cleaner for Twin Cam Models

    Trask Assault Charge High-Flow Air Cleaner for Twin Cam Models

    $724.00
    Sale price  $724.00 Regular price 
  • Rocker Locker Kit

    Rocker Locker Kit

    Rocker Locker Kit

    $37.00
    Sale price  $37.00 Regular price 
  • Kruesi Originals Magnetic Dipstick for RevMax Models

    Kruesi Originals Magnetic Dipstick for RevMax Models

    Kruesi Originals Magnetic Dipstick for RevMax Models

    $145.00
    Sale price  $145.00 Regular price 
  • Trask "Mystfree" Breather Kit

    Trask "Mystfree" Breather Kit

    Trask "Mystfree" Breather Kit

    $362.00
    Sale price  $362.00 Regular price