Athena Top-End Gasket Kit 09340234 for KTM MX250 1990-92 EXC300 1990-98 SX300 1993-94 EGS250 EXC250 SX250 1993-98

Name: Athena Top-End Gasket Kit 09340234 for KTM MX250 1990-92 EXC300 1990-98 SX300 1993-94 EGS250 EXC250 SX250 1993-98
Brand: ATHENA
SKU: 09340234
Price: 21.97 GBP
Availability: InStock

Fits 6 bikes

RRP £26.47 Save 17%

£21.97

incl. VAT

In stock — delivered in 6–10 working days

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

Part #: 09340234

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§ 02 / About this part

What it is

Athena top-end gasket kit to fit KTM EGS250 (1993–1998); KTM EXC250 (1993–1998); KTM EXC300 (1990–1998); KTM MX250 (1990–1992); KTM SX250 (1993–1998); KTM SX300 (1993–1994).

This set includes the head gasket, base gasket, and necessary O-rings for a top-end refresh. It is essential when replacing your piston or rings to maintain compression. These parts sit between the cylinder, head, and crankcase. Heat cycles and high pressure eventually degrade the original seals. Always check your squish clearance when installing the base gasket. This kit matches OEM dimensions for reliable sealing under race conditions. Clean the mating surfaces thoroughly to prevent coolant or oil migration.

§ 03 / Specs

The numbers

Brand: ATHENA
Part number: 09340234
Category: Gaskets & Seals
Weight: 0.07 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 6 models · 6 year-bands

KTM 6 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.