Namura Complete Gasket Kit for KTM 1999-2002 620 LC4 620 LC4-E & 640 LC4-E

Namura Complete Gasket Kit for KTM

This Namura complete gasket kit provides all the top-end and base gaskets needed to rebuild the engine on KTM 620 LC4, 620 LC4-E, and 640 LC4-E motorcycles from 1999-2002. It includes OEM-style replacement gaskets for the cylinder head, base, valve cover, and other critical sealing points.

Overview

This complete gasket kit from Namura contains every gasket required for a full engine top-end rebuild on KTM LC4 singles from 1999-2002. Engineered to match original dimensions and materials, it restores proper compression and prevents oil leaks. Whether you are repairing a 620 LC4, 620 LC4-E, or 640 LC4-E, this kit simplifies the rebuild process.

Built For Performance

• Includes cylinder head gasket, base gasket, valve cover gasket, and more
• Manufactured from high-temperature resistant materials for durability
• Precision cut to match OEM specifications
• Complete kit eliminates need to source individual gaskets
• Designed for engines with up to 640cc displacement

Fits These Machines

• for KTM 620 LC4 (1999-2002)
• for KTM 620 LC4-E (1999-2002)
• for KTM 640 LC4-E (1999-2002)

On-The-Job Use

• Ideal for top-end engine rebuilds when replacing piston or rings
• Essential for fixing oil leaks from cylinder and valve cover areas
• Commonly used during full engine restoration or performance upgrades

Specs At A Glance

Good To Know

Q: Does this kit include the head o-rings and valve stem seals? A: This complete gasket kit includes all paper and metal gaskets for the top end, but valve stem seals and o-rings may not be included; check the kit contents before ordering. For a full rebuild, we recommend replacing those separately if not included.

Q: Can this gasket kit be used on a 640 LC4 Supermoto? A: Yes, the 640 LC4-E shares the same engine architecture as the 640 LC4 Supermoto, so this kit fits both variants. However, always verify your specific model year and engine code.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.