Honda 400EX - Dune Goons
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Honda 400EX Parts & Accessories

Honda 400EX (1999–2009) Parts – The Legend Lives On The Honda 400EX is one of the most beloved sport quads ever built. Light, reliable, and packing a peppy 3...

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153 products in Honda 400EX Parts & Accessories
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    Hot Cams Exhaust Valve Honda TRX400EX XR400R (29mm Steel) - Dune Goons
    Hot Cams Exhaust Valve Honda TRX400EX XR400R (29mm Steel) (1996-2014)
    $71.00
    Lone Star Swingarm Pivot Bolt – Honda TRX/Foreman Models - Dune Goons
    Lone Star Swingarm Pivot Bolt – Honda TRX/Foreman Models (1986-2009)
    $112.00
    Moose 36T Steel Rear Sprocket – TRX400EX / TRX450R / TRX300EX (1987-2014)
    $44.00
    Wiseco Precision - Forged Clutch Basket – Honda TRX400EX (1999–2005) - Dune Goons
    Wiseco Precision - Forged Clutch Basket – Honda TRX400EX (1999–2005) - Dune Goons
    Wiseco Precision-Forged Clutch Basket – Honda TRX400EX (1999–2005)
    $375.00
    Sold Out
    Vesrah Complete Clutch Kit – Honda TRX400EX / TRX400X (1999-2014)
    $180.00
    Sold Out
    Namura Top End Rebuild Kit – Honda TRX400EX / XR400R / TRX400X (11:1, Std Bore 84.97mm) - Dune Goons
    Namura Top End Rebuild Kit – Honda TRX400EX / XR400R / TRX400X 84.97mm 11:1 (1996-2014)
    $204.00
    Bronco Ignition Coil – TRX400EX 1999–2007 - Dune Goons
    Bronco Ignition Coil – TRX400EX 1999–2007
    $47.00
    TRX400EX Magnetic Oil Drain Plug – Red | M12 x 1.50 x 15mm Bolt - Dune Goons
    TRX400EX Magnetic Oil Drain Plug – Red | M12 x 1.50 x 15mm Bolt (1999-2009)
    $38.00
    Galfer Brake Pads – TRX400EX Front/Rear | Offroad Organic - Dune Goons
    Galfer Brake Pads – TRX400EX Front/Rear | Offroad Organic (1999-2014)
    $43.00
    TRX400EX Renthal 520 Z - Ring Chain – 100 Link OEM Length Gold - Dune Goons
    TRX400EX Renthal 520 Z-Ring Chain – 100 Link OEM Length Gold (2006-2013)
    $236.00
    TRX400EX TRX400X Battery – Moose AGM Maintenance - Free 12V - Dune Goons
    TRX400EX TRX400X Battery – Moose AGM Maintenance-Free 12V (2001-2013)
    $119.00
    TRX400EX Engine Plug Set – Works Connection Red Anodized - Dune Goons
    TRX400EX Engine Plug Set – Works Connection Red Anodized (1993-2009)
    $72.00
    TRX400EX Cam Chain by Hot Cams – Silent Heavy - Duty Timing Chain - Dune Goons
    TRX400EX Cam Chain by Hot Cams – Silent Heavy-Duty Timing Chain (1996-2014)
    $124.00
    Wiseco Cam Chain TRX400EX TRX400X XR400R – 82RH2010 M Style - Dune Goons
    Wiseco Cam Chain TRX400EX TRX400X XR400R – 82RH2010 M Style (2010)
    $116.00
    TRX400EX Air Filter 2006–2008 – Dual Foam M763 - 20 - 20 - Dune Goons
    TRX400EX Air Filter 2006–2008 – Dual Foam M763-20-20
    $47.00
    Honda TRX400EX TRX400X DRC Clutch Kit – DRC100 Heavy - Duty - Dune Goons
    Honda TRX400EX TRX400X DRC Clutch Kit – DRC100 Heavy-Duty (1999-2008)
    $225.00
    Honda TRX400EX / TRX400X CK1193 Clutch Kit – EBC Standard Series - Dune Goons
    Honda TRX400EX / TRX400X CK1193 Clutch Kit – EBC Standard Series (1999-2008)
    $117.00
    TRX400EX / TRX400X Moose Brake Pads Front & Rear – Qualifier Series (2001-2014)
    TRX400EX / TRX400X Moose Brake Pads Front & Rear – Qualifier Series (2001-2014)
    $28.00
    TRX400EX / 400X Oil Change Kit – K&N Filter + Motorex 10W - 40 - Dune Goons
    TRX400EX / 400X Oil Change Kit – K&N Filter + Motorex 10W - 40 - Dune Goons
    TRX400EX / 400X Oil Change Kit – K&N Filter + Motorex 10W-40 (1999-2014)
    $71.00

    Honda 400EX (1999–2009) Parts – The Legend Lives On

    The Honda 400EX is one of the most beloved sport quads ever built. Light, reliable, and packing a peppy 397 cc air-cooled engine with roughly 28 horsepower, it ruled trails and dunes for over a decade β€” and it’s still a favorite today.

    Whether you’re refreshing a classic, building a dune weapon, or keeping the family 400EX running strong, we stock everything you need:

    • Full plastics kits & graphics
    • Nerf bars, bumpers & grab bars
    • Big-bore kits, cams & top-end rebuilds
    • Exhaust systems, carb kits & jetting
    • A-arms, swingarms & suspension upgrades
    • Wheels, tires, paddles & beadlocks
    • Maintenance parts – oils, filters, chains & sprockets

    Every part is rider-tested by the Dune Goons crew. Orders before 2 PM PST ship same day.

    Keep the 400EX legacy alive β€” shop now!