09031611 ENG KT WISECO 400EX 05-14

Name: WISECO ENG KT WISECO 400EX 05-14
Brand: WISECO
SKU: 09031611
Price: 740.21 GBP
Availability: InStock

Fits 2 bikes

£870.84 Save 15%

£740.21

incl. VAT

In stock — ships in 3 working days

Usually dispatched within 3 working days.

Part #: 09031611

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§ 02 / About this part

What it is

The WISECO ENG KT WISECO 400EX 05-14, engine. Stocked by Iron Offroad, the UK MX hard parts specialist.

This kit provides the components for a full engine refresh on the 400EX. It includes the crankshaft, piston, and all necessary seals and gaskets. Air-cooled engines like this face significant thermal stress, which can wear rings and bearings over time. Replacing the entire rotating assembly restores compression and reduces internal friction. The forged piston is a robust upgrade over the stock unit. Ensure the oil pump and galleries are clear before reassembling the bottom-end. This kit is essential for high-mileage machines or those used in demanding off-road conditions.

§ 03 / Specs

The numbers

Brand: WISECO
Part number: 09031611
Category: Engine
Weight: 7.32 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 — this is a UK shop for motocross, enduro, and trail-bike hard parts. All fitments live on the site, and listed against MX models KTM, Husqvarna, GasGas, Yamaha, Honda, Kawasaki, Suzuki, and Beta. Pick your bike on the timing-tower. Our USP is in the data, fully enriched to assist with accurate fitting and finding the right part for your bike quickly and easily. 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 & e-moto only. We operate from our huge storage facility in Leeds. Iron Offroad is a trading name of Iron Stable Ltd, registered in Mildenhall — Company No. 17061294. We have a RICH motorcycle history with multiple moto brands the images showing where we came from and our history, the business recently pivoted into hard parts and online retail.