
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


Valve Guide Seals Yamaha WR 450 F YFZ YZ 450 F YZ 450 F SP

C674 Valve Guide Suzuki DR-Z 400 DR-Z 400 E DR-Z 400 S DR-Z 400 SM LT-Z

Cylinder Kit Stock Bore Race for 4 Stroke ARCTIC CAT (TEXTRON) 400 2X4 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

Cylinder Kit Big Bore Race for 4 Stroke ARCTIC CAT (TEXTRON) 400 2X4 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

Cylinder Kit Stock Bore Race for 4 Stroke Suzuki LT-R 450 2X4 Quadracer 2006-2011

Cylinder Kit Big Bore Race for 4 Stroke Suzuki LT-R 450 2X4 Quadracer 2006-2011

Standard Bore Cylinder Yamaha WR 450 F 2003-2006 (AMERICA) Yamaha WR 450 F 2003-2004 (EUROPE) Yamaha YFZ 450 2012-2013 Yamaha YFZ 450 2004-2009 (AMERICA) Yamaha YZ 450 F 2003-2005

Big Bore Cylinder Kit ARCTIC CAT (TEXTRON) 400 2X4 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

Standard Bore Cylinder Suzuki LT-R 450 2X4 Quadracer 2006-2009

Cylinder Kit Big Bore Race for 2 Stroke Yamaha YFZ 350 Banshee 1987-2006 Yamaha YFZ 350 LE Banshee Limited Edition 2003-2004 Yamaha YFZ 350 MNH Banshee Maine & New Hampshire 1991-1997 (AMERICA) Yamaha YFZ 350 SE Banshee Limited Edition 2005-2006 Yamaha YFZ 350 SP Banshee Limited Edition 2006

Cylinder Kit Stock Bore Race for 4 Stroke Kawasaki KFX 450 R 2x4 2008-2014

Cylinder Kit Yamaha YFZ

Standard Bore High Compression Cylinder Kit Suzuki LT-R 450 2X4 Quadracer 2006-2009

Standard Bore High Compression Cylinder Kit Yamaha YFM 700 R 2012-2014 (EUROPE) Yamaha YFM 700 R Raptor 2006-2014 (AMERICA) Yamaha YFM 700 RSE Raptor Special Edition 2007-2014 (AMERICA) Yamaha YFM 700 RSE Special Edition 2012-2014 (EUROPE)

Cylinder Kit Yamaha YFM YXR

Cylinder Kit Yamaha YFZ 450 R 2009-2017, 2019-2027 Yamaha YFZ 450 R 2018 (AMERICA) Yamaha YFZ 450 RL 70th Anniversary 2026 Yamaha YFZ 450 RSE Special Edition 2009-2027 Yamaha YFZ 450 X 2010-2011 (AMERICA) Yamaha YFZ 450 XSE Special Edition 2011 (AMERICA)

Big Bore Cylinder Kit Yamaha YFZ 450 R 2009-2017, 2019-2027 Yamaha YFZ 450 R 2018 (AMERICA) Yamaha YFZ 450 RL 70th Anniversary 2026 Yamaha YFZ 450 RSE Special Edition 2009-2027 Yamaha YFZ 450 X 2010-2011 (AMERICA) Yamaha YFZ 450 XSE Special Edition 2011 (AMERICA)

Cylinder Kit Yamaha YFM 700 Raptor 2013-2014 (AMERICA) Yamaha YFM 700 R Raptor 2006-2014 (AMERICA) Yamaha YFM 700 RSE Raptor Special Edition 2007-2014 (AMERICA) Yamaha YFM 700 RSE2 Raptor Special Edition 2 2007-2008 (AMERICA) Yamaha YFM 700 RSP Raptor 50th Anniversary 2006 (AMERICA) Yamaha YFM 700 RYR Raptor Gtyr Edition 2007 (AMERICA)

Big Bore Cylinder Kit Yamaha YFM 700 Raptor 2013-2017 (AMERICA) Yamaha YFM 700 R Raptor 2006-2017 (AMERICA) Yamaha YFM 700 RSE Raptor Special Edition 2007-2014 (AMERICA) Yamaha YFM 700 RSE2 Raptor Special Edition 2 2007-2008 (AMERICA) Yamaha YFM 700 RSP Raptor 50th Anniversary 2006 (AMERICA) Yamaha YFM 700 RYR Raptor Gtyr Edition 2007 (AMERICA)

Standard Bore Cylinder Yamaha YFM

Standard Bore Cylinder Yamaha YFM YXM YXR

Big Bore Cylinder Kit Yamaha YFZ 450 2012-2013 Yamaha YFZ 450 2004-2009 (AMERICA)

Replacement Cylinder Honda TRX 450 ER E-Start 2012-2014 Honda TRX 450 ER Sportrax E-Start 2006-2009 Honda TRX 450 R Sportrax K-Start 2006-2009
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.