Vertex Replacement Piston Ring Set 09120366 for Yamaha YZ125 1992–1993, 2005–2016

Name: Vertex Replacement Piston Ring Set 09120366 for Yamaha YZ125 1992–1993, 2005–2016
Brand: VERTEX
SKU: 09120366
Price: 17.29 GBP
Availability: InStock

Fits 1 bike

RRP £21.61 Save 20%

£17.29

incl. VAT

In stock — delivered in 6–10 working days

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

Part #: 09120366

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§ 02 / About this part

What it is

Vertex replacement piston ring set to fit Yamaha YZ125 (1992–1993, 2005–2016).

Restore your engine's compression and efficiency with this dedicated ring set. These components sit on the piston and act as the primary barrier for combustion gases. Over time, the heat and friction of the bore reduce ring tension and increase the end gap. This results in a noticeable drop in performance and harder starting. When fitting, use a feeler gauge to verify the end gap matches the manufacturer's specification for your bike. This set provides a precise fit for the piston grooves, ensuring consistent oil scraping and compression sealing throughout the service interval.

§ 03 / Specs

The numbers

Brand: VERTEX
Part number: 09120366
Category: Top End
Weight: 0.00 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 1 model · 2 year-bands

* 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.