Athena Complete Gasket Kit 400485850490 for Yamaha IT 490 YZ490 1982–1983

Name: Athena Complete Gasket Kit 400485850490 for Yamaha IT 490 YZ490 1982–1983
Brand: ATHENA
SKU: 400485850490
Price: 24.37 GBP
Availability: InStock

Fits 2 bikes

RRP £29.36 Save 17%

£24.37

incl. VAT

In stock — delivered in 6–10 working days

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

Part #: 400485850490

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§ 02 / About this part

What it is

Athena complete gasket kit to fit the Yamaha IT 490, model years 1982–1983, and Yamaha YZ490, model years 1982–1983.

This set covers your entire engine rebuild from the crankcases up. It includes every seal and gasket required when you split the cases or perform a total overhaul. You get the base gasket, head gasket, and all side cover seals for the clutch and ignition. These are vital for maintaining primary compression and preventing oil leaks after a full strip-down. Ensure all mating surfaces are perfectly clean and flat before installation. It is a direct replacement for the factory setup. Use this when your service interval calls for a bottom-end refresh.

§ 03 / Specs

The numbers

Brand: ATHENA
Part number: 400485850490
Category: Gaskets & Seals
Weight: 0.12 kg
VAT: 20%

// Fitment

Will it fit your bike?

Fits 2 models · 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.