09104123 PISTON KIT HC Ø 78.00 B

Name: VERTEX PISTON KIT HC Ø 78.00 B
Brand: VERTEX
SKU: 09104123
Price: 205.29 GBP
Availability: InStock

Fits 8 bikes

RRP £256.61 Save 20%

£205.29

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09104123

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§ 02 / About this part

What it is

The VERTEX PISTON KIT HC Ø 78.00 B, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.

This assembly boosts cylinder pressure for increased torque and better drive. It sits in the upper engine and replaces the standard component. Use the B size to compensate for minor wear in the bore. Maintaining tight tolerances is essential for performance and preventing piston slap. The kit includes the piston, rings, gudgeon pin, and circlips. Always check your squish clearance and ring end gap during the rebuild. Higher compression setups require more frequent service intervals. Ensure the crown is oriented correctly to avoid valve contact and ensure smooth operation.

§ 03 / Specs

The numbers

Brand: VERTEX
Part number: 09104123
Weight: 0.26 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 8 models · 8 year-bands

Gas Gas 2 models

Husqvarna 2 models

KTM 4 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 — 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.