
Quad bike, ATV & UTV engine parts
Find oil filters and oils for servicing, or pistons, crankshafts, bearings and gaskets for engine repairs. Choose a category below, then narrow the range by model and year. For internal engine parts, also check the engine's current specification, including any previous rebuild or modification.
Read the engine buying guide and FAQsBrowse engine 16 categories


White Diamond® Engine Valve Yamaha WR 450 F YFM YFZ YXR YZ 450 F YZ 450 F SP YZ 450 FX

White Diamond® Engine Valve Yamaha WR 450 F YFM YFZ YXR YZ 450 F YZ 450 F SP YZ 450 FX

Black Diamond™ Engine Valve EXHAUST Honda TRX 450 R Sportrax 2004-2005

Engine Valve Honda TRX XR 400 R

Engine Valve Kawasaki KFX KLX 400 R Suzuki DR-Z 400 DR-Z 400 E DR-Z 400 S DR-Z 400 SM LT-Z

Engine Valve Honda TRX 400 EX Fourtrax 1999-2001 Honda TRX 400 EX Sportrax 2002-2008 Honda TRX 400 X Sportrax 2009-2014 Honda XR 400 R 1996-2004

Engine Valve Kawasaki KFX KLX 400 R Suzuki DR-Z 400 DR-Z 400 E DR-Z 400 S DR-Z 400 SM LT-Z

C630 Valve Guide INTAKE/EXHAUST Polaris OUTLAW 500 2006-2007 INTAKE/EXHAUST Polaris PREDATOR 500 2X4 2003-2007

Black Diamond™ Engine Valve INTAKE Polaris OUTLAW 500 2006-2007 INTAKE Polaris PREDATOR 500 2X4 2003-2007

Black Diamond™ Engine Valve INTAKE Polaris OUTLAW 500 2006-2007 INTAKE Polaris PREDATOR 500 2X4 2003-2007

Black Diamond™ Engine Valve EXHAUST Polaris OUTLAW 500 2006-2007 EXHAUST Polaris PREDATOR 500 2X4 2003-2007

C674 Valve Guide INTAKE Suzuki LT-R 450 2X4 Quadracer 2006-2009

C674 Valve Guide EXHAUST Suzuki LT-R 450 2X4 Quadracer 2006-2009

Black Diamond™ Engine Valve INTAKE Suzuki LT-R 450 2X4 Quadracer 2006-2009

Black Diamond™ Engine Valve Yamaha YFM YXC 700 4X4 YXC 700 D 4X4 YXC 700 DH 4X4 YXC 700 P 4X4 YXC 700 PH 4X4 YXC 700 VDH 4X4 YXC 700 VDX 4X4 YXC 700 VPH 4X4 YXC 700 VPR 4X4 YXM YXR & More

High-Performance Engine Valve Honda TRX 400 EX Fourtrax 2000-2001 Honda TRX 400 EX Sportrax 2002-2008 Honda TRX 400 X Sportrax 2009-2014 Honda XR 400 R 1996-2002

High-Performance Engine Valve Kawasaki KFX KLX 400 R KLX 400 SR Suzuki DR-Z 400 DR-Z 400 E DR-Z 400 S DR-Z 400 SM LT-Z

High-Performance Engine Valve Honda TRX 400 EX Fourtrax 2000-2001 Honda TRX 400 EX Sportrax 2002-2008 Honda TRX 400 X Sportrax 2009-2014 Honda XR 400 R 1996-2002

High-Performance Engine Valve Kawasaki KFX KLX 400 R KLX 400 SR Suzuki DR-Z 400 DR-Z 400 E DR-Z 400 S DR-Z 400 SM LT-Z

Valve Guide Seals Honda CB 1000 C CB 1100 F TRX Kawasaki EX 500 D GPZ 1000 RX KFX Suzuki GS 1150 E GS 1150 EF LT-R TRIUMPH AMERICA 865 BONNEVILLE 865 Yamaha FJ 1100 & More

Valve Guide Seals Kawasaki KLX 650 KLX 650 R KZ 1000 KZ 900 Suzuki DR 750 S DR 800 S GS 1000 GS 1000 E Yamaha SRX 600 TT 600 TT 600 E TT 600 S & More

Black Diamond™ Engine Valve Honda TRX 450 ER Sportrax E-Start 2006-2009 INTAKE Honda TRX 450 R Sportrax K-Start 2006-2009

Engine Valve Yamaha YFM
Choose parts for the job
For an oil service, start with oil filters and oils. Match the filter to your engine and use the oil specification in its service manual. Air filters sit separately under air intake and filters.
For piston or cylinder work, browse pistons and rings and cylinders and parts. For work around the crankshaft and connecting rod, use crankshafts and connecting rods and engine bearings. Valves and cams has its own category for valve-train components.
For sealing or cooling work, start with gaskets and seals, cooling or oil and water pumps. Choose the part for the location being repaired; an engine gasket, oil seal and pump repair kit serve different jobs.
Match the engine as well as the vehicle
Have the full model, year and engine capacity to hand, along with the existing part number where you can identify it. Read the application notes for the exact variant. If the engine has been replaced or modified, the vehicle's original details may no longer identify the parts it needs.
Does an engine rebuild kit include everything I need?
Use engine rebuild kits to compare kit options, then check the contents for the exact reference. The word “rebuild” does not establish which pistons, bearings, gaskets or seals are included. Compare the supplied-parts list with the work planned before ordering additional components.
Can I choose a piston using model and year alone?
Model and year help you find the application, but the piston size must also match the cylinder. Where size grades or oversizes are offered, confirm the cylinder's condition and measurements with your engine builder before ordering. Do not choose a size from engine capacity or appearance alone.
Will the vehicle filter confirm every engine part fits?
It narrows the range using supplier-listed applications. You still need to check the full model, year, variant and any application notes. For a rebuilt or modified engine, compare the part with the specification actually fitted; the filter cannot establish that from the vehicle name.
Where are clutch, fuel and ignition parts?
Browse Drive for clutches and drive belts, Air & Fuel for carburettor and intake parts, or Electrical for ignition and starting electrics. Recoil starters remain in the Engine browse list above.
Compare the complete model, year and part number before choosing a part.