09100399 PISTON KIT ALUMINUM 47.00MM STANDARD

Name: PROX PISTON KIT ALUMINUM 47.00MM STANDARD
Brand: PROX
SKU: 09100399
Price: 38.85 GBP
Availability: InStock

Fits 7 bikes

£45.70 Save 15%

£38.85

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09100399

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§ 02 / About this part

What it is

The PROX PISTON KIT ALUMINUM 47.00MM STANDARD, top end. Stocked by Iron Offroad, the UK MX hard parts specialist.

This assembly serves as a direct replacement for the factory part. It includes the piston, rings, pin, and clips. Available in standard and oversize options, it allows you to refresh a worn bike or recover a cylinder after a rebore. Regular maintenance ensures your bike remains easy to start and maintains consistent power. Verify your cylinder diameter matches the kit size before installation. Ensure all carbon deposits are removed from the cylinder head and valves during the rebuild to prevent hotspots and pre-ignition.

§ 03 / Specs

The numbers

Brand: PROX
Part number: 09100399
Category: Top End
Weight: 0.11 kg
OEM cross-refs: 13101-GCF-A20
VAT: 20%

// Fitment

Will it fit your bike?

Fits 7 models · 8 year-bands

Honda 8 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 — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. 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 & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.