420811851 Oil Pump Cover Plate for Sea-Doo Wake STD 155 1503 2017-2019

Oil Pump Cover Plate for Sea-Doo

This oil pump cover plate, reference 420811851, seals and protects the oil pump assembly on Sea-Doo 1503 engines so lubrication stays consistent.

Overview

This oil pump cover plate is a direct-fit replacement for the 1503 engine platform, designed to seal and protect the oil pump housing on your watercraft. It keeps the pump internals covered against water intrusion and debris while helping hold oil pressure steady under load. Built for riders maintaining a Sea-Doo Wake STD 155 from the 2017 through 2019 model years, it is a practical service part for routine rebuilds and pump repairs.

Built For Performance

• Factory-style fitment for the 1503 oil pump assembly
• Seals the pump housing to protect internal components from water and grit
• Rigid construction resists flexing under engine vibration
• Direct cross-reference to OEM part number 420811851
• Designed for marine engine service intervals

Fits These Machines

• for Sea-Doo Wake STD 155 with 1503 engine, 2017-2019

On-The-Job Use

• Oil pump rebuild and reseal projects
• Routine engine maintenance on 1503-powered watercraft
• Top-end service where pump access is required
• Replacing a cracked or leaking cover plate

Specs At A Glance

Good To Know

Q: Does this cover plate come with mounting hardware? A: This listing covers the cover plate itself, so reuse your existing fasteners unless they show damage or corrosion. Inspect the sealing surface before installation.

Q: Will this work on 1503 engines outside the listed years? A: It is specified for the 1503 platform across the 2017-2019 Wake STD 155, and other variants may share the same pump design. Confirm your engine 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.