420931702 Head Gasket for Sea-Doo GTX 951 1998-2002

Head Gasket for Sea-Doo GTX 951

This head gasket for Sea-Doo seals the cylinder head to the engine block on GTX 951 models from 1998 to 2002, cross-referencing OEM part 420931702 to maintain proper compression and cooling.

Overview

This head gasket for Sea-Doo is a precision sealing component made for the 951 engine platform found in the GTX. It maintains compression between the cylinder head and block while keeping coolant passages properly sealed. It suits riders and technicians performing top-end service on 1998 to 2002 GTX 951 watercraft.

Built For Performance

• Precision-cut to match OEM combustion chamber and coolant port layout
• Multi-layer construction built to handle high compression loads
• Heat-resistant material suited to marine two-stroke operating temperatures
• Seals coolant and combustion passages simultaneously
• Cross-references OEM part number 420931702
• Direct fit with no modification required

Fits These Machines

• for Sea-Doo GTX 951, 1998
• for Sea-Doo GTX 951, 1999
• for Sea-Doo GTX 951, 2000
• for Sea-Doo GTX 951, 2001
• for Sea-Doo GTX 951, 2002

On-The-Job Use

• Top-end rebuilds and cylinder head service
• Restoring compression after gasket failure
• Coolant leak repair at the head-to-block joint
• Routine engine maintenance on the 951 platform

Specs At A Glance

Good To Know

Q: Can I reuse this head gasket if the engine has not been run? A: No, head gaskets are single-use and should always be replaced once compressed. Reusing one risks compression loss and coolant leaks.

Q: Do I need to torque the head bolts in a specific sequence? A: Yes, always follow the manufacturer torque specs and sequence for the 951 engine. Proper tightening prevents warping and ensures a lasting seal.

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