Vertex Piston Kit Ø68.00 C 09102170 for Yamaha YZ250WR 1990 YZ250 1990-95 WR250 WR250Z 1991-95

Name: Vertex Piston Kit Ø68.00 C 09102170 for Yamaha YZ250WR 1990 YZ250 1990-95 WR250 WR250Z 1991-95
Brand: VERTEX
SKU: 09102170
Price: 111.02 GBP
Availability: InStock

Fits 4 bikes

RRP £138.78 Save 20%

£111.02

incl. VAT

In stock — delivered in 6–10 working days

Dispatched in 2–3 working days · delivered in 6–10.

Part #: 09102170

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§ 02 / About this part

What it is

Vertex piston kit Ø68.00 C to fit Yamaha WR250 (1991–1995); Yamaha WR250Z (1991–1995); Yamaha YZ250 (1990–1995); Yamaha YZ250WR (1990).

This C-size piston is designed for rebuilds on cylinders with moderate wear. It is sized larger than A or B options to maintain factory-spec clearances. Periodic changes are necessary to prevent skirt collapse and maintain compression. Verify your bore diameter with a micrometer before installation. Check the ring gap and ensure the piston is oriented with the arrow facing the exhaust. This kit provides the rings, gudgeon pin, and circlips for your service.

§ 03 / Specs

The numbers

Brand: VERTEX
Part number: 09102170
Category: Top End
Weight: 0.34 kg
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 — 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.