09104366 PISTON KIT TOP END Ø 66.40 D

Name: VERTEX PISTON KIT TOP END Ø 66.40 D
Brand: VERTEX
SKU: 09104366
Price: 164.15 GBP
Availability: InStock

Fits 4 bikes

RRP £205.19 Save 20%

£164.15

incl. VAT

In stock — delivered in 6–10 working days

Dispatched in 2–3 working days · delivered in 6–10.

Part #: 09104366

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§ 02 / About this part

What it is

The VERTEX PISTON KIT TOP END Ø 66.40 D, top end. Stocked by Iron Offroad, the UK MX hard parts specialist.

This D-size kit is the final step for worn cylinders before a replate or sleeve is required. It provides the tightest fitment for bores at the upper limit of their service life. Maintaining correct piston-to-wall clearance is vital for preventing piston slap and maintaining power. This kit contains the piston, rings, pin, and circlips. Measure your bore at multiple points to ensure it remains round. During the rebuild, check your small-end bearing for any play. Follow the manufacturer's torque settings for the cylinder head bolts to avoid distorting the bore.

§ 03 / Specs

The numbers

Brand: VERTEX
Part number: 09104366
Category: Top End
Weight: 0.54 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 4 models · 4 year-bands

Husqvarna 2 models

KTM 2 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.