420950772 Head Gasket for Sea-Doo Cruise 18-230 1630 2023-2026

Head Gasket for Sea-Doo

This head gasket for Sea-Doo personal watercraft seals the cylinder head to the engine block, maintaining compression and keeping coolant and combustion gases where they belong on the 1630 engine.

Overview

This head gasket for Sea-Doo is a direct-fit sealing component for the 1630 engine used across the Cruise 18-230 platform in model years 2023 through 2026. It seals the mating surface between the cylinder head and block so compression, coolant, and oil stay separated under load. Anyone servicing a leaking or failed head gasket on a Sea-Doo 1630 will need this part on hand.

Built For Performance

• Precision-formed sealing surface for a consistent clamp load across the head
• Construction suited to the thermal cycling of marine 1630 engines
• Designed to contain combustion pressure and coolant at the head-to-block joint
• Direct replacement for OEM part 420950772
• Fits the 1630 displacement engine as used in the Cruise 18-230

Fits These Machines

• for Sea-Doo Cruise 18-230, 2023-2026

On-The-Job Use

• Top-end rebuilds on the 1630 engine
• Repairing coolant leaks at the cylinder head joint
• Correcting compression loss traced to a failed head gasket
• Routine engine refresh on a Sea-Doo Cruise 18-230

Specs At A Glance

Good To Know

Q: Does this fit my 2023 Sea-Doo Cruise 18-230? A: It is listed for the Cruise 18-230 with the 1630 engine across 2023 to 2026, but serial number and engine variation can affect fit, so confirm your model before ordering.

Q: Can I reuse a head gasket? A: No, a head gasket is a single-use sealing component and should be replaced any time the cylinder head is removed or a leak is found.

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