39145-3742 Jet Pump Trim Seal for Kawasaki STX 900 1999-2006

Jet Pump Trim Seal for Kawasaki

This jet pump trim seal for Kawasaki watercraft seals the trim nozzle assembly, helping maintain alignment and limit water leakage around the pump exit on STX 900 models. It is designed as an OEM cross-reference replacement for part number 39145-3742.

Overview

This jet pump trim seal for Kawasaki is a replacement sealing component that fits between the trim nozzle and pump housing on select STX 900 personal watercraft. The seal helps prevent water intrusion and keeps the trim system operating correctly by maintaining a tight fit at the pump exit. It is built for riders performing routine maintenance or rebuilding the jet pump assembly on their Kawasaki PWC.

Built For Performance

• OEM cross-reference part number 39145-3742 for accurate fitment matching
• Constructed from durable rubber compound suited to constant water exposure
• Seals the trim nozzle interface to reduce leakage around the jet pump exit
• Helps maintain correct trim nozzle alignment during operation
• Direct replacement for worn or hardened factory seals
• Resistant to saltwater, freshwater, and fuel exposure common in PWC use

Fits These Machines

• for Kawasaki STX 900, 1999-2006

On-The-Job Use

• Jet pump rebuilds and seasonal maintenance
• Replacing dried or cracked seals after extended use
• Restoring proper trim nozzle function on the water
• Preventive service before riding season

Specs At A Glance

Good To Know

Q: Is this seal an original Kawasaki part? A: No, this is a replacement jet pump trim seal that cross-references OEM part 39145-3742. It is designed to fit the listed Kawasaki STX 900 models as a functional equivalent.

Q: How do I know if my trim seal needs replacing? A: Signs include visible cracks, hardening, water leaking around the trim nozzle, or looseness in the trim assembly. Replacing the seal during pump service is a common practice.

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