09030828 PISTON KIT ALUMINUM 47.46MM C

Name: PROX PISTON KIT ALUMINUM 47.46MM C
Brand: PROX
SKU: 09030828
Price: 72.76 GBP
Availability: InStock

Fits 2 bikes

RRP £90.95 Save 20%

£72.76

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09030828

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 47.46MM C, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

YZ85 top-ends come around quickly; an 85 two-stroke lives at high rpm and a piston is cheap insurance against a dropped ring taking the plating with it. This is the 47.46mm C grade, the largest of Yamaha's letter sizes, cross-referencing OEM 5PA-11631-00 and fitting both the small-wheel and big-wheel YZ 85. Match the letter stamped on your cylinder or measure clearance directly. Cast aluminium keeps reciprocating weight down where a small bore needs it. Rings, wrist pin and circlips included.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09030828
Weight: 0.13 kg
OEM cross-refs: 5PA-11631-00
VAT: 20%

// Fitment

Will it fit your bike?

Fits 2 models · 2 year-bands

* 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 — a UK shop for motocross, enduro, and trail-bike hard parts. Every fitment lives on the site, listed against KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is the data: fully enriched fitment so you find the right part for your bike quickly and get it fitted accurately. 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 and e-moto only. We operate from our storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. The business has a rich motorcycle history across multiple moto brands — the photos show where we came from — and recently pivoted into hard parts and online retail.