6GA-G5514-00-00 Coupler Shaft for Yamaha EX 1050 2017-2024

Coupler Shaft for Yamaha

The coupler shaft is the driveshaft component that links the engine output to the jet pump on Yamaha EX 1050 personal watercraft, and it carries the OEM cross-reference 6GA-G5514-00-00.

Overview

This coupler shaft serves as the mechanical link between the engine and the jet pump driveline on Yamaha EX 1050 watercraft. Built to the 6GA-G5514-00-00 reference, this coupler shaft transfers torque from the engine coupler into the pump shaft so the impeller turns under load. It is aimed at riders and mechanics replacing a worn, splined, or corroded shaft on a Yamaha EX 1050.

Built For Performance

• Fabricated from corrosion-resistant marine-grade metal for extended service in wet environments
• Splined ends machined to engage the engine coupler and pump shaft securely
• Dimensions matched to the 6GA-G5514-00-00 reference for direct replacement
• Balanced shaft geometry to reduce vibration at high RPM
• Heat-treated surface for wear resistance under continuous driveline load

Fits These Machines

• for Yamaha EX 1050, 2017-2024

On-The-Job Use

• Driveline repair on Yamaha EX 1050 personal watercraft
• Routine replacement during pump or engine service
• Restoring propulsion after a stripped or seized coupler shaft
• Pre-season maintenance on skis with high running hours

Specs At A Glance

Good To Know

Q: Will this coupler shaft fit my Yamaha EX 1050 directly? A: It is built to the 6GA-G5514-00-00 reference for the Yamaha EX 1050, but you should confirm your model year and serial number before ordering.

Q: Should the coupler be replaced at the same time? A: Inspect the engine coupler and pump shaft splines while the shaft is out, since worn splines on either side can shorten the life of a new coupler shaft.

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