PROX PISTON KIT ALUMINUM 54.19MM A

§ 01 / Part

09101474 PISTON KIT ALUMINUM 54.19MM A

Fits 2 bikes
RRP £123.62 Save 20%
£98.90

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09101474

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PROX

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 54.19MM A, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This A-size kit is for new or replated 125cc-class cylinders. It sits in the top-end, providing the primary seal for the combustion chamber. These engines require frequent piston changes to maintain peak performance and avoid skirt breakage. Inspect the cylinder for any signs of heat damage before fitting. Ensure the rings are seated in the grooves and the end gap is checked. Lubricate the small-end bearing and wrist pin during assembly. This kit restores the compression and reliability expected from a fresh top-end.

§ 03 / Specs

The numbers

Brand
PROX
Part number
09101474
Weight
0.18 kg
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.
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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