PROX PISTON KIT ALUMINUM 44.47MM C

§ 01 / Part

09101402 PISTON KIT ALUMINUM 44.47MM C

Fits 3 bikes
RRP £81.96 Save 20%
£65.57

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09101402

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PROX

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 44.47MM C, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This C-size kit is designed for cylinders with slight wear, offering a tighter fit than A or B alternatives. It replaces OEM part 13001-1630 in your top-end assembly. As the cylinder bore increases through use, moving to a C-sized piston restores the correct clearance. This prevents piston slap and maintains stable compression. Verify your bore diameter with a dial bore gauge before fitting. Lubricate the wrist pin and rings with assembly oil. Ensure the circlips are seated with the gaps facing down to prevent them from dislodging.

§ 03 / Specs

The numbers

Brand
PROX
Part number
09101402
Weight
0.12 kg
OEM cross-refs
13001-1630
VAT
20%

// Fitment

Will it fit your bike?

Fits 3 models · 3 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