420430624 Cam Chain Plug Gasket for Sea-Doo Sport 21-300 1630 2026

Cam Chain Plug Gasket for Sea-Doo

The Cam Chain Plug Gasket for Sea-Doo replaces OEM 420430624, sealing the cam chain plug on 1630 ACE engines to keep oil contained.

Overview

This Cam Chain Plug Gasket for Sea-Doo is a direct-fit sealing component for the cam chain access plug on 1630 ACE engines. It keeps oil where it belongs and blocks debris from entering the timing chain cavity. Ideal for owners performing routine maintenance or chasing a slow leak on a Sport 21-300.

Built For Performance

• Cross-references OEM part 420430624 for a confident match
• Seals the cam chain plug against oil weep and pressure loss
• Constructed from oil-resistant sealing material for long service life
• Direct-fit dimensions for the 1630 ACE engine plug bore
• Withstands the heat cycling of a marine engine bay

Fits These Machines

• for Sea-Doo Sport 21-300 1630, 2026

On-The-Job Use

• Routine cam chain plug service on 1630 ACE powered craft
• Leak repair at the timing chain access point
• Top-end maintenance when the cam chain cover is off
• Seasonal pre-ride inspection of the engine case sealing points

Specs At A Glance

Good To Know

Q: Does this gasket fit engines other than the 1630 ACE? A: It is listed for the 1630 ACE cam chain plug, so confirm your engine family and plug part number before ordering. Fit can vary by model year and serial number.

Q: Should the plug gasket be replaced every time the plug is removed? A: Replacing the gasket whenever the cam chain plug is disturbed is standard practice, since a compressed gasket may not reseal properly. A fresh gasket helps prevent oil weep after reassembly.

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