420811591 Oil Pump Cover for Sea-Doo Sportster 155 1503 2003-2006

Oil Pump Cover for Sea-Doo

This oil pump cover is a replacement component for the 1503 engine used in Sea-Doo watercraft, cross-referenced under OEM part 420811591, sealing and protecting the oil pump assembly so lubrication reaches the engine reliably.

Overview

This oil pump cover is made to fit the Sea-Doo Sportster 155 with the 1503 engine for model years 2003 through 2006. The oil pump cover shields the pump drive and helps maintain consistent oil pressure inside the lubrication circuit. It suits riders and mechanics replacing a cracked, warped, or leaking cover on a Sea-Doo 1503 powerplant.

Built For Performance

• Replacement oil pump cover sized for the 1503 engine platform
• Cross-references OEM part number 420811591
• Seals the oil pump housing against leaks and contamination
• Constructed for marine engine operating conditions
• Direct-fit replacement for the original cover location

Fits These Machines

• for Sea-Doo Sportster 155 with 1503 engine, 2003-2006

On-The-Job Use

• Servicing oil pump leaks on 1503-equipped Sea-Doo watercraft
• Engine rebuild and lower-end reassembly work
• Routine maintenance on older Sea-Doo 1503 models

Specs At A Glance

Good To Know

Q: Does this cover include the oil pump itself? A: No, this listing is for the cover only and does not include the internal oil pump components. Reuse or replace the pump internals as needed during installation.

Q: How do I confirm this fits my Sea-Doo? A: Check that your engine is the 1503 platform and that your existing part number matches 420811591. Serial number and production year can affect fitment, so verify 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.