WISECO PISTON KIT PRO-LITE

§ 01 / Part

804M06640 PISTON KIT PRO-LITE

Fits Yamaha YZ 250
RRP £168.91 Save 20%
£135.13

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 804M06640

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WISECO

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§ 02 / About this part

What it is

The WISECO PISTON KIT PRO-LITE, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This forged unit is engineered for high-performance top-end refreshes. It replaces the stock piston to offer better durability under race conditions. You should swap this out at the recommended service interval to avoid loss of power or potential engine damage. The kit comes complete with rings, gudgeon pin, and circlips. Verify your cylinder bore size and condition before ordering to ensure the correct tolerance. During the rebuild, pay close attention to ring orientation and end gap. This part is essential for maintaining the mechanical integrity and throttle response of your bike.

§ 03 / Specs

The numbers

Brand
WISECO
Part number
804M06640
Weight
0.32 kg
VAT
20%

// Fitment

Will it fit your bike?

Fits 1 model · 1 year-band

* 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.
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Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement
Free UK shipping over £100 14-day no-quibble returns OEM-grade parts only UK support · Tue–Fri 9–5, Sat 9–4 Race-shop prices, paddock service Collection from Leeds by arrangement