Crankshaft Main Bearing for Sea-Doo Fish Pro 155 1503 2019

Crankshaft Main Bearing for Sea-Doo

This crankshaft main bearing is a replacement engine component that supports the crankshaft for Sea-Doo Fish Pro 155 1503 watercraft from 2019, keeping rotational loads stable inside the crankcase.

Overview

This crankshaft main bearing is built to carry the crankshaft for Sea-Doo personal watercraft, holding the journal steady under high rpm loads. It fits the Fish Pro 155 1503 platform and serves riders rebuilding or refreshing a worn bottom end. Install it as part of a full bearing set for consistent crankshaft support.

Built For Performance

• Precision-sized to match the 1503 engine crankshaft journal
• Hardened bearing surface for high-rpm marine use
• Designed for oil-fed lubrication inside the crankcase
• Resists corrosion in wet marine environments
• Sold as an individual bearing for targeted replacement

Fits These Machines

• for Sea-Doo Fish Pro 155 1503, 2019

On-The-Job Use

• Bottom-end rebuilds on 1503 engines
• Routine crankshaft service on Fish Pro 155 models
• Replacing a scored or worn main bearing
• Marine shops servicing Sea-Doo personal watercraft

Specs At A Glance

Good To Know

Q: How many main bearings does a crankshaft rebuild need? A: Most rebuilds replace the full bearing set at once, so check your service manual for the correct quantity for the 1503 engine before ordering.

Q: Can I install this without machining the crankshaft? A: Only if the crankshaft journal measures within the factory tolerance; a scored or out-of-round journal needs machining before a new bearing goes in.

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