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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  • All Balls Fuel Pump Rebuild Kit

    All Balls Fuel Pump Rebuild Kit

    All Balls Fuel Pump Rebuild Kit

    $150.00
    Sale price  $150.00 Regular price 
  • Drag Specialties Mini Crankcase Vent Filter

    Drag Specialties Mini Crankcase Vent Filter

    Drag Specialties Mini Crankcase Vent Filter

    $29.00
    Sale price  $29.00 Regular price 
  • Complete Twin Cam Rocker Box Gasket Kit

    Complete Twin Cam Rocker Box Gasket Kit

    Complete Twin Cam Rocker Box Gasket Kit

    $67.00
    Sale price  $67.00 Regular price 
  • Twin Cam Head Gaskets for 88", 95", 96" & 103"

    Twin Cam Head Gaskets for 88", 95", 96" & 103"

    Twin Cam Head Gaskets for 88", 95", 96" & 103"

    $90.00
    Sale price  $90.00 Regular price 
  • Oil Pan Gasket for 1999-2017 Dyna Models

    Oil Pan Gasket for 1999-2017 Dyna Models

    Oil Pan Gasket for 1999-2017 Dyna Models

    $20.00
    Sale price  $20.00 Regular price 
  • Arlen Ness Big Sucker Stage 1 Air Cleaner for M8 Softail Models

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

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

    $463.00
    Sale price  $463.00 Regular price 
  • Barnett Clutch Pack & Srings

    Barnett Clutch Pack & Srings

    Barnett Clutch Pack & Srings

    $422.00
    Sale price  $422.00 Regular price 
  • Andrews 485 Camshaft M8

    Andrews 485 Camshaft M8

    Andrews 485 Camshaft M8

    $390.00
    Sale price  $390.00 Regular price 
  • Arlen Ness Big Sucker Stage 1 Air Cleaner for 1999–2016 Twin Cam Touring

    Arlen Ness Big Sucker Stage 1 Air Cleaner for 1999–2016 Twin Cam Touring

    Arlen Ness Big Sucker Stage 1 Air Cleaner for 1999–2016 Twin Cam Touring

    $348.00
    Sale price  $348.00 Regular price 
  • S&S Billet Head Breather Kit for 2017+ M8 Models

    S&S Billet Head Breather Kit for 2017+ M8 Models

    S&S Billet Head Breather Kit for 2017+ M8 Models

    $434.00
    Sale price  $434.00 Regular price 
  • S&S Head Breather Kit for Twin Cam

    S&S Head Breather Kit for Twin Cam

    S&S Head Breather Kit for Twin Cam

    $326.00
    Sale price  $326.00 Regular price 
  • Feuling Reaper 538 Camshaft for M8 Models

    Feuling Reaper 538 Camshaft for M8 Models

    Feuling Reaper 538 Camshaft for M8 Models

    $478.00
    Sale price  $478.00 Regular price 
  • Feuling Reaper 487 Camshaft for M8 Models

    Feuling Reaper 487 Camshaft for M8 Models

    Feuling Reaper 487 Camshaft for M8 Models

    $463.00
    Sale price  $463.00 Regular price 
  • 2004-2022 Sportster Front Motor Mount Isolators

    2004-2022 Sportster Front Motor Mount Isolators

    2004-2022 Sportster Front Motor Mount Isolators

    $102.00
    Sale price  $102.00 Regular price 
  • 1986-2003 Sportster Motor Mount Plates

    1986-2003 Sportster Motor Mount Plates

    1986-2003 Sportster Motor Mount Plates

    $131.00
    Sale price  $131.00 Regular price 
  • Harley-Davidson M8 Knucklehead Rocker Covers

    Harley-Davidson M8 Knucklehead Rocker Covers

    Harley-Davidson M8 Knucklehead Rocker Covers

    $2,313.00
    Sale price  $2,313.00 Regular price 
  • Kruesi Originals Magnetic Dipstick for 1999-2005 Dyna Models

    Kruesi Originals Magnetic Dipstick for 1999-2005 Dyna Models

    Kruesi Originals Magnetic Dipstick for 1999-2005 Dyna Models

    $232.00
    Sale price  $232.00 Regular price 
  • UltraCool Side Mount Oil Cooler Kit for 2018-2026 Harley-Davidson M8 Softail

    UltraCool Side Mount Oil Cooler Kit for 2018-2026 Harley-Davidson M8 Softail

    UltraCool Side Mount Oil Cooler Kit for 2018-2026 Harley-Davidson M8 Softail

    $854.00
    Sale price  $854.00 Regular price 
  • Drag Specialties Crankcase Breather Kit for 1991-2022 Sportster XL

    Drag Specialties Crankcase Breather Kit for 1991-2022 Sportster XL

    Drag Specialties Crankcase Breather Kit for 1991-2022 Sportster XL

    $95.00
    Sale price  $95.00 Regular price 
  • CV Performance Stainless Steel Bowl Hardware Kit

    CV Performance Stainless Steel Bowl Hardware Kit

    CV Performance Stainless Steel Bowl Hardware Kit

    $12.00
    Sale price  $12.00 Regular price 
  • Arlen Ness Titanium 12-Point Lifter Block Bolt Kit

    Arlen Ness Titanium 12-Point Lifter Block Bolt Kit

    Arlen Ness Titanium 12-Point Lifter Block Bolt Kit

    $116.00
    Sale price  $116.00 Regular price 
  • Arlen Ness Titanium 12-Point Cam Cover Bolt Kits

    Arlen Ness Titanium 12-Point Cam Cover Bolt Kits

    Arlen Ness Titanium 12-Point Cam Cover Bolt Kits

    $145.00
    Sale price  $145.00 Regular price 
  • Trask Tornado Stage 2 Turbo Kit for 117"+ M8 Models

    Trask Tornado Stage 2 Turbo Kit for 117"+ M8 Models

    Trask Tornado Stage 2 Turbo Kit for 117"+ M8 Models

    $10,125.00
    Sale price  $10,125.00 Regular price 
  • Replacement Tappet Block Covers for 1999-2017 Twin Cam Models

    Replacement Tappet Block Covers for 1999-2017 Twin Cam Models

    Replacement Tappet Block Covers for 1999-2017 Twin Cam Models

    $138.00
    Sale price  $138.00 Regular price