
Quad bike piston kits
Choose a piston kit using the exact engine application and the size required for the cylinder. Check any standard, oversize or graded-size details, then compare the supplied parts so you know what the kit covers.
Read the buying guide and FAQs

High-Performance Piston Kit with Gaskets for 4-Stroke Suzuki LT-4WD 250 4X4 Quadrunner 1987-1992 Suzuki LT-4WDX 250 4X4 Kingquad 1991-1995

Piston Kit Forged Series for 4-Stroke Polaris OUTLAW 500 2006-2007 Polaris PREDATOR 500 2X4 2003-2007

Piston Kit Forged Series for 4-Stroke Yamaha YFZ

Piston Kit for 4-Stroke Yamaha YFZ

Piston Kit for 4-Stroke Yamaha YFZ

Piston Kit Forged Series for 4-Stroke Yamaha YFM YXR

Piston Kit Forged Series for 4-Stroke Yamaha YFM YXR

Piston Kit for 2-Stroke Yamaha RD 350 LC YFZ

Piston Kit for 2-Stroke Kawasaki KFX 80 2X4 2003-2006 Suzuki LT 80 Quadsport 1988-2006

Piston Kit Forged Replica 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

Piston Kit Forged Replica for 4 Stroke BETA RR 450 KTM EXC 450 EXC 450 RACING EXC-G 450 RACING XC 450 ATV XC-F 450 XC-W 450 XCR-W 450

Piston Kit Forged Replica for 4 Stroke BETA RR 510 RR 525 KTM EXC 520 EXC 520 RACING EXC 525 RACING EXC-G 525 RACING MXC 525 MXC 525 RACING SMR 525 SX 520 SX 520 RACING SX 525 & More

Piston Kit Cast Replica for 2 Stroke Yamaha YFS 200 Blaster 1988-2006 Yamaha YFS 200 MNH Blaster Maine & New Hampshire 1991-1997 Yamaha YFS 200 SE Blaster SE 2006

Piston Kit Forged Replica for 4 Stroke Yamaha YFZ

Piston Kit Cast Replica for 4-Stroke Yamaha YFM YXR

Piston Kit Cast Replica for 4-Stroke Yamaha YFM YXR

Piston Kit Cast Replica for 4-Stroke Yamaha YFM YXR

Piston Kit for 4-Stroke BETA RR 525 KTM EXC 520 EXC 520 RACING EXC 525 RACING EXC-G 525 RACING SMR 525 SX 520 SX 520 RACING SX 525 Polaris OUTLAW 525 OUTLAW 525 IRS OUTLAW 525 S & More

Piston Kit for 4-Stroke BETA RR 525 KTM EXC 520 EXC 520 RACING EXC 525 RACING EXC-G 525 RACING SMR 525 SX 520 SX 520 RACING SX 525 Polaris OUTLAW 525 OUTLAW 525 IRS OUTLAW 525 S & More

Piston Kit for 4-Stroke BETA RR 525 KTM EXC 520 EXC 520 RACING EXC 525 RACING EXC-G 525 RACING SMR 525 SX 520 SX 520 RACING SX 525 Polaris OUTLAW 525 OUTLAW 525 IRS OUTLAW 525 S & More

Piston Kit for 4-Stroke 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

Piston Kit for 4-Stroke Yamaha YFZ

Piston Kit for 4-Stroke Yamaha YFZ
Confirm the engine and cylinder specification
Check the model, year and engine type, including two-stroke or four-stroke details where stated. If the engine or cylinder has been changed, identify the specification now fitted. Have the cylinder's measurements and condition confirmed by your engine builder before selecting a size.
Read the kit's contents and requirements
Check the exact reference for included rings, pin, circlips and any gaskets; do not infer contents from the word “kit”. Where compression or other build requirements are stated, compare them with the intended engine specification. Browse gaskets and seals for separately required components.
Can I select the size from the markings on the old piston?
Use those markings to help identify the old part, then confirm the size needed for the cylinder now. They do not establish its present measurements or condition. If a grade or oversize must be selected, agree it with your engine builder before ordering.
Are two kits for the same model always interchangeable?
Compare the complete specifications, including engine type, piston size and any stated compression or build requirements. A shared model application does not mean every option is suitable for the same build. Ask for clarification if the difference between references is unclear.
Does one piston kit cover the whole engine?
Check the quantity of pistons and components supplied by the exact listing. Do not assume a kit covers every cylinder. Compare its contents with the parts list for the work being planned.
Can I buy the rings, pin or circlips separately?
Browse piston rings and wrist pins and circlips for separate listings. Match each replacement to the exact piston reference and size; the vehicle model alone may not identify the piston fitted.
Compare the complete model, year and part number before choosing a part.