PROX Complete Engine Gasket Kit for HUSQVARNA TE 250 and KTM EXC 250 2017-2019

On KTM EXC 250 and HUSQVARNA TE 250 from 2017 to 2019, the PROX 34.6354 complete engine gasket kit fits in place of the original part. A full engine rebuild calls for new gaskets wherever parts have been separated. This kit saves you ordering gaskets one by one and makes sure the engine goes back together perfectly sealed.

Key features

• All the gaskets for a complete engine rebuild.
• Materials chosen according to location, from multi-layer steel to synthetic fibre (ProX).
• Designed to work with ProX pistons and connecting rods as well as with original parts.

Specifications

• Brand: PROX
• Manufacturer part number: 34.6354
• Weight: 170 g
• Engine: 2-stroke

When to replace it?

• Oil seeping at the crankcase or cover joints.
• Coolant or oil leak after the engine has been apart.
• Gaskets hardened, torn or stuck to the parts on disassembly.

During a complete engine rebuild (connecting rod, crankshaft bearings, gearbox) or whenever the crankcases are split.

Fitting tips

1. Clean all the gasket faces without scratching them and remove any remains of old gaskets.
2. Fit the gaskets dry, except where the workshop manual specifies sealant.
3. Replace the O-rings at the same time: a crushed O-ring can't be reused.
4. With the cases split, also replace the crankshaft bearings and oil seals and check the gearbox bearings.
5. Tighten the crankcases and covers in a criss-cross pattern to the manufacturer's torque, then fill up with oil and coolant.

Why PROX?

ProX Racing Parts has been supplying engine and clutch parts to motocross riders since 1975, from its headquarters near Amsterdam. According to its catalogue, most of its parts are made in Japan, by manufacturers that also produce parts for the Japanese motorcycle makers.

Spare parts and items to plan

• Crankshaft bearings and seals : ALL BALLS
• Engine oil seals : PROX · INNTECK
• Gearbox bearings : HOT RODS TBK0019 · HOT RODS HR00088
• 2-stroke oil : LIQUI MOLY 1 L · MOTUL 800 1 L
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• Spark plug : NGK 5122 · NGK 6664

Frequently asked questions

Are the oil seals included?
The manufacturer does not say for this part number: compare with your original seals.

What does the kit contain?
The top-end and bottom-end gaskets needed for a complete engine rebuild. ProX doesn't publish a part-by-part list: compare with your original gaskets if in doubt.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HUSQVARNA TE 250 2019
HUSQVARNA TE 250 2018
HUSQVARNA TE 250 2017
KTM EXC 250 2018
KTM EXC 250 2017