420254882 Intake or Exhaust Valve Guide for Sea-Doo GTX STD 230 1503 2018-2019

Intake or Exhaust Valve Guide for Sea-Doo

This intake or exhaust valve guide is a replacement component that keeps valve stems moving straight inside the cylinder head, carrying OEM cross-reference 420254882 for a direct fit.

Overview

This valve guide is built to keep intake and exhaust valves aligned as they cycle inside the cylinder head of your watercraft engine. The valve guide controls valve stem travel so the valve seats correctly on every stroke, which supports steady compression and clean combustion. It suits riders and mechanics rebuilding or servicing a Sea-Doo GTX STD 230 1503 from the 2018 to 2019 model years. The valve guide is the kind of small part that keeps a rebuilt head performing the way it should.

Built For Performance

• Precision bore sized to guide the valve stem through its full lift range
• Manufactured to OEM cross-reference 420254882 for direct replacement
• Handles the heat cycling that comes with intake and exhaust valve operation
• Wear-resistant construction to hold stem clearance over service life
• Suitable for both intake and exhaust valve positions
• Sold as a single guide for rebuild or replacement work

Fits These Machines

• for Sea-Doo GTX STD 230 1503, 2018-2019

On-The-Job Use

• Cylinder head rebuilds on the 1503 engine
• Valve seal and stem service work
• Top-end refresh after a compression or leak-down issue
• Routine maintenance on a high-hour personal watercraft engine

Specs At A Glance

Good To Know

Q: Can this guide be used for either the intake or the exhaust side? A: Yes, the guide is listed for both intake and exhaust valve positions, so check your cylinder head layout before ordering. Q: Does the guide require machining after installation? A: Many rebuilds call for checking stem clearance and reaming to size after pressing the guide in, so confirm your engine builder's procedure before final assembly.

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