420811591 Oil Pump Cover for Sea-Doo Cruise 21-300 1630 2026

Oil Pump Cover for Sea-Doo

This oil pump cover is a replacement component designed to seal and protect the oil pump assembly on the Sea-Doo Cruise 21-300 1630 for the 2026 model year, cross-referencing OEM part number 420811591.

Overview

This oil pump cover is built for the Sea-Doo Cruise 21-300 1630 and works to protect the oil pump while containing lubrication inside the engine. It suits owners handling maintenance or swapping out a worn or damaged cover on their personal watercraft. The oil pump cover matches OEM reference 420811591 for direct fitment.

Built For Performance

• Direct replacement for OEM part number 420811591
• Seals and shields the oil pump assembly from debris and moisture
• Constructed to handle the heat and vibration of marine engine operation
• Designed for the 1630 engine platform used in the Cruise 21-300
• Helps maintain consistent oil pump function by keeping the assembly enclosed

Fits These Machines

• for Sea-Doo Cruise 21-300 1630, 2026

On-The-Job Use

• Routine engine maintenance and oil pump service
• Replacing a cracked or leaking factory cover
• Rebuilding or refreshing a 1630 engine assembly
• Personal watercraft repair on the Sea-Doo Cruise 21-300

Specs At A Glance

Good To Know

Q: Is this oil pump cover an original Sea-Doo part? A: It is an aftermarket replacement that cross-references OEM number 420811591, so it fits the listed application but is not an original brand product.

Q: Will this cover fit any 1630 engine? A: It is intended for the Cruise 21-300 1630 in the 2026 model year, so confirm your model and serial number before ordering.

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