09101586 PISTON KIT ALUMINUM 57.00MM +1.00MM

Name: PROX PISTON KIT ALUMINUM 57.00MM +1.00MM
Brand: PROX
SKU: 09101586
Price: 95.54 GBP
Availability: InStock

Fits 4 bikes

£112.40 Save 15%

£95.54

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09101586

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 57.00MM +1.00MM, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This kit provides the components for a top-end refresh when your cylinder requires a rebore. It replaces the factory unit to restore compression and power. The aluminium alloy handles the heat cycles of a high-revving 2-stroke engine. Each kit includes the piston, rings, wrist pin, and circlips. Use this oversize to clean up bore scoring or ovality in your cylinder. Match the piston size to your machinist's finished bore diameter. It cross-references with OEM part 3MB-11631-00. Proper ring end gap must be checked during your rebuild to ensure longevity on the track.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09101586
Weight: 0.21 kg
OEM cross-refs: 3MB-11631-00
VAT: 20%

// Fitment

Will it fit your bike?

Fits 4 models · 4 year-bands

Yamaha 4 models

* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.

§ 05 / About Iron Offroad

Iron Offroad

Iron Offroad is the off-road sibling of Iron City and Iron stable — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. Brands you'd find on a paddock workbench; pads, sprockets, plastics, fork seals, cables, gaskets, bars, the things that actually wear out. Road-bike kit, scooter parts, and quad gear sit elsewhere. Dirt & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.