420950772 Head Gasket for Sea-Doo RXP P XRS 300 1630 2018

Head Gasket for Sea-Doo RXP P XRS 300 1630

This head gasket, part number 420950772, seals the cylinder head to the engine block on the Sea-Doo RXP P XRS 300 1630, helping maintain proper compression and coolant sealing.

Overview

This head gasket is a direct-fit sealing component for the Sea-Doo RXP P XRS 300 1630, carrying OEM cross-reference 420950772. It seals the junction between the cylinder head and engine block, keeping combustion pressure, oil, and coolant where they belong. This head gasket suits riders and mechanics maintaining or rebuilding a 2018 Sea-Doo RXP P XRS 300 1630.

Built For Performance

• OEM cross-reference 420950772 for direct fitment
• Constructed to withstand high combustion temperatures
• Seals coolant and oil passages between head and block
• Maintains proper cylinder compression
• Designed for the 1630 300 engine platform

Fits These Machines

• for Sea-Doo RXP P XRS 300 1630 (2018)

On-The-Job Use

• Top-end rebuilds on the 1630 300 engine
• Head gasket replacement after overheating
• Routine engine maintenance on the RXP XRS platform

Specs At A Glance

Good To Know

Q: Should I replace head bolts at the same time? A: Many manufacturers recommend new torque-to-yield head bolts whenever the head is removed, so check your service manual. Reusing stretched bolts can lead to uneven clamping and premature gasket failure.

Q: What torque sequence should I follow? A: Always follow the factory torque specs and tightening sequence for the 1630 engine. Improper torque can cause leaks or warping of the cylinder head.

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