09101166 PISTON KIT ALUMINUM 66.37MM D

Name: PROX PISTON KIT ALUMINUM 66.37MM D
Brand: PROX
SKU: 09101166
Price: 120.02 GBP
Availability: InStock

Fits 14 bikes

RRP £150.02 Save 20%

£120.02

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09101166

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 66.37MM D, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

Restore compression and power delivery to your engine with this top-end kit. It serves as a direct replacement for OEM 548.30.007.300. High-revving engines require frequent piston changes to prevent skirt failure and loss of performance. This graded size ensures a precise fit within your cylinder bore. Check your current bore diameter to choose the correct grade. Ensure ring pegs are correctly aligned before sliding the cylinder home. Always use fresh gaskets and lubricate the small-end bearing. This kit maintains factory tolerances for consistent engine performance.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09101166
Weight: 0.30 kg
OEM cross-refs: 548.30.007.300
VAT: 20%

// Fitment

Will it fit your bike?

Fits 14 models · 14 year-bands

Beta 2 models

Gas Gas 3 models

Husaberg 1 model

TE 250 2011–2014

Husqvarna 3 models

KTM 5 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.