§ 01 / Part
09104547 PISTON KIT FORGED 53.95MM B
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
PROX
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§ 02 / About this part
What it is
The PROX PISTON KIT FORGED 53.95MM B, top end. Stocked by Iron Offroad, the UK MX hard parts specialist.
This forged component sits at the heart of your top-end rebuild. It converts combustion energy into mechanical drive. Over time, heat cycles wear the skirt and ring grooves, leading to compression loss or blow-by. This B-size fitment accounts for minor cylinder bore wear. It serves as a direct alternative to OEM part 503.30.207.100. Always check your bore diameter with a micrometer before selection. Ensure the ring gaps are clocked correctly during assembly. Lubricate the wrist pin and small-end bearing thoroughly before sliding the cylinder over the rings.
§ 03 / Specs
The numbers
- Brand
- PROX
- Part number
- 09104547
- Category
- Top End
- Weight
- 0.19 kg
- OEM cross-refs
- 503.30.207.100
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 9 models · 10 year-bands
Beta 1 model
Gas Gas 1 model
Husaberg 1 model
Husqvarna 4 models
KTM 3 models
No matches. Try a different make or model.
* 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
// Related
