Crankshaft Main Bearing for Sea-Doo GTR X HO 1503 2019

Crankshaft Main Bearing for Sea-Doo

This crankshaft main bearing is a replacement engine component that supports the crankshaft inside the crankcase, and it serves as a direct-fit alternative for Sea-Doo 1503 engine applications.

Overview

This crankshaft main bearing is built to replace a worn or failed bearing in the 1503 engine used across several Sea-Doo models. It supports the crankshaft so it spins true under load, helping protect against vibration, oil pressure loss, and further engine damage. It suits owners performing a rebuild or top-end refresh who need a dependable crankshaft main bearing for their Sea-Doo.

Built For Performance

• Precision-ground bearing surface for consistent crankshaft support
• Constructed for the loads and heat of marine 1503 engine conditions
• Direct-fit dimensions matched to the crankcase journal
• Helps maintain stable oil clearance for proper lubrication
• Suited to rebuild and repair service intervals

Fits These Machines

• for Sea-Doo GTR X HO 1503
• for Sea-Doo GTR X HO 2019

On-The-Job Use

• Engine rebuilds on Sea-Doo 1503 powerplants
• Bottom-end repair after bearing wear or failure
• Crankshaft service during engine tear-down
• Restoring correct crankshaft support for daily riding

Specs At A Glance

Good To Know

Q: How many bearings do I need for a full rebuild? A: The quantity required depends on your engine's main bearing positions, so check your service manual before ordering. Confirm the count matches your crankshaft setup.

Q: Should main bearings be replaced as a set? A: Replacing all main bearings together is common practice during a rebuild to keep wear even. Match replacements to the same spec for consistent crankshaft support.

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