
Quad bike pistons and rings
This category includes piston kits, pistons, piston rings and related parts. Engine type, bore and pack contents vary, so check the engine details and exact application before choosing a listing.
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
Match the engine and size details
Check whether the listing is for a two-stroke or four-stroke engine, where stated. Compare its bore, piston size and standard or oversize details with the information for your engine. A similar bore figure or model-family name alone does not confirm fitment.
Check the kit contents
The range includes kits as well as rings, pins and circlips. A piston kit, ring set and individual component are different listings; check the unit and contents to see what is supplied.
If compression or other engine specifications are shown, compare them with the requirements for your build rather than using one figure alone. Browse gaskets and seals for related engine components, checking each item against its own application.
Can I choose a piston using model and year alone?
Use those details to find the application, then confirm the size required for the cylinder. Where size grades or oversizes are offered, have the cylinder's condition and measurements checked by your engine builder before ordering. Engine capacity or the marking on an old piston alone does not confirm the next size to buy.
How do I choose replacement piston rings?
Match the rings to the exact piston specification and size, using the piston or ring manufacturer's application information. A matching vehicle name or bore figure alone does not confirm the correct ring set. Browse piston rings once those details are established.
Does a piston kit include the pin and circlips?
Read the stated contents for the exact reference; do not infer them from the word “kit”. Use piston kits to compare kit listings or wrist pins and circlips for separate components, checking their own application and quantity.
Where should I look if the cylinder is also being replaced?
Browse cylinders and parts and check what is included with the chosen cylinder or kit. Agree the cylinder and piston specifications together before ordering so that a model match does not stand in for the required measurements.
Compare the complete model, year and part number before choosing a part.