§ 01 / Part
09105657 PISTON KIT 24381B
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
VERTEX
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§ 02 / About this part
What it is
The VERTEX PISTON KIT 24381B, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.
This top-end component sits inside the cylinder bore and handles the combustion forces of your bike. This B-size piston accounts for slight cylinder wear to maintain the correct piston-to-wall clearance. Over time, the skirt wears and ring tension drops, leading to lost compression and blow-by. Replacing this kit at the recommended hour interval prevents cylinder damage and maintains peak power. The kit includes the piston, rings, gudgeon pin, and circlips. Always check the ring end gap before installation. Point the arrow on the crown toward the exhaust side to ensure the valve pockets align correctly.
§ 03 / Specs
The numbers
- Brand
- VERTEX
- Part number
- 09105657
- Weight
- 0.25 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 5 models · 5 year-bands
Fantic 2 models
Yamaha 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
