420950772 Head Gasket for Sea-Doo GTI SE 170 1630 2020-2026

Head Gasket for Sea-Doo

This head gasket with part number 420950772 seals the cylinder head to the engine block on the Sea-Doo GTI SE 170 1630, maintaining compression and coolant separation for the 2020-2026 model years.

Overview

This head gasket for Sea-Doo provides a dependable seal on the GTI SE 170 1630 engine. It is made to withstand the thermal and pressure demands of marine use, making it suited for rebuilds and top-end service. Owners of a 2020-2026 GTI SE 170 1630 will find this head gasket a key sealing part.

Built For Performance

• Precision formed for the 1630 engine deck surface
• Material chosen for marine heat cycling
• Seals combustion pressure at the head and block joint
• Supports consistent compression across cylinders
• Matched fitment for the GTI SE 170 1630

Fits These Machines

• for Sea-Doo GTI SE 170 1630 (2020-2026)

On-The-Job Use

• Top-end rebuilds
• Cylinder head removal and reinstall work
• Compression loss troubleshooting
• Coolant and combustion leak repair

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo gasket? A: This is an aftermarket head gasket for Sea-Doo applications, referenced by part number 420950772, and is not an original brand product.

Q: Does this fit every 2020-2026 GTI SE 170 1630? A: It is listed for the GTI SE 170 1630 across those years, but confirm your engine serial number before ordering to be sure.

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