420950820 Valve Cover Gasket for Sea-Doo GTX STD HO 1503 2019

Valve Cover Gasket for Sea-Doo

This valve cover gasket is a direct replacement seal for the 1503 engine in the 2019 Sea-Doo GTX STD HO, cross-referencing OEM part 420950820 to keep oil contained at the valve cover mating surface.

Overview

This valve cover gasket seals the joint between the valve cover and cylinder head on the 1503 engine used in the Sea-Doo GTX STD HO. It prevents oil seepage and keeps the top end of the engine clean and properly lubricated. This valve cover gasket is intended for riders performing routine maintenance or resealing a leaking cover on a 2019 Sea-Doo GTX STD HO.

Built For Performance

• Precision-cut to match the 1503 valve cover mating surface
• Oil-resistant material suited to high-operating-temperature marine engines
• Cross-references OEM part 420950820 for direct fitment
• Seals against oil weep at the valve cover joint under normal boost and rpm
• Designed as a service replacement for routine top-end resealing

Fits These Machines

• for Sea-Doo GTX STD HO 1503, 2019

On-The-Job Use

• Valve cover resealing during top-end service
• Leak repair on oil weeping around the valve cover
• Routine maintenance on the 1503 engine
• Post-rebuild reassembly of the valve cover

Specs At A Glance

Good To Know

Q: Does this replace my old gasket directly? A: Yes, this gasket cross-references OEM part 420950820 and is intended as a direct replacement for the valve cover on the 1503 engine. Always confirm the part number on your machine before ordering.

Q: Is any sealant required during installation? A: Many installers use a thin bead of appropriate gasket sealant at specified corners per service manual guidance, but follow your machine's manual for the exact procedure.

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