420950772 Head Gasket for Sea-Doo Sport Compact 170 1630 2022-2026

Head Gasket for Sea-Doo Sport Compact 170 1630

This head gasket for Sea-Doo 1630 engine applications is a sealing component that sits between the cylinder head and engine block to maintain compression and keep coolant and oil passages sealed, referenced under OEM part number 420950772.

Overview

This head gasket is built to seal the combustion chamber and fluid passages on the Sea-Doo 1630 engine used in Sport Compact 170 models from 2022 through 2026. It replaces OEM part 420950772 and helps restore proper compression and coolant sealing after a top-end service. It is intended for riders and mechanics handling their own engine repair work.

Built For Performance

• Multi-layer construction designed to hold combustion pressure under load
• Precisely cut openings that align with cylinder head coolant and oil passages
• Pre-formed sealing beads to improve contact across the deck surface
• Heat-resistant material suited to the operating temperatures of the 1630 engine
• Direct replacement for OEM part 420950772

Fits These Machines

• for Sea-Doo Sport Compact 170 1630 (2022-2026)

On-The-Job Use

• Top-end rebuilds after a blown gasket or coolant leak
• Cylinder head removal and reinstallation work
• Compression loss diagnosis and repair
• Routine engine refresh on high-hour machines

Specs At A Glance

Good To Know

Q: Do I need to replace head bolts when installing this gasket? A: Many manufacturers specify new torque-to-yield head bolts for this type of repair, so check your service manual before reassembly. Reusing stretch bolts can lead to uneven clamping force.

Q: Should the head and block surfaces be cleaned before installation? A: Yes, both mating surfaces need to be clean, flat, and free of old gasket material for this head gasket to seal correctly. Any remaining debris can cause compression or coolant leaks.

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