ATHENA complete engine gasket kit for KTM EXC 620 LC4, LC4 640 E, SC 620 LC4, SX 620 LC4 from 1999 to 2002

ATHENA offers this complete engine gasket kit for KTM EXC 620 LC4, LC4 640 E, SC 620 LC4, SX 620 LC4 from 1999 to 2002. A full rebuild means opening the whole engine: cylinder, head, cases and covers. Every gasket removed must be replaced.

Why buy a complete engine gasket kit?

The benefits:

• One part number for the whole engine: cases, covers, cylinder and head.
• Much cheaper than buying the gaskets separately.
• Avoids the bike sitting idle for a forgotten gasket.

Why choose ATHENA?

Athena, original-equipment supplier to KTM and Ducati from Italy, laser-cuts its gaskets from materials designed for heat, oil and coolant.

When should you replace the gaskets on your KTM LC4 640 E?

An oil or coolant leak, seepage around the cases or a loss of compression signal a tired gasket. Having the kit to hand means the bike is never stuck waiting for one missing gasket.

The manufacturer publishes no hour interval for this model: have the con-rod play checked at every piston change. Cross-Mania guideline: rebuild the bottom end every 2 to 3 top-end rebuilds.

Specifications and fitting tips

• Engine: 4-stroke
• Premium gasket kit made by Athena S.p.A.
• Head gaskets with a wave structure in rubber-coated steel

Cross-Mania tip: Clean the mating faces carefully without scratching them and tighten to the manufacturer's torque.

Also needed with this part

• Crankshaft bearings and seals : see the selection
• Piston : PROX · WISECO
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50

Compatibility

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

Fits:
KTM EXC 620 LC4 1999
KTM LC4 640 E 2002
KTM LC4 640 E 2001
KTM LC4 640 E 2000
KTM LC4 640 E 1999
KTM SC 620 LC4 2001
KTM SC 620 LC4 2000
KTM SC 620 LC4 1999
KTM SX 620 LC4 1999