420254882 Intake or Exhaust Valve Guide for Sea-Doo GTX S 1503 2016

Intake or Exhaust Valve Guide for Sea-Doo

This intake or exhaust valve guide, part number 420254882, is a replacement engine component that keeps valves aligned and moving smoothly in your Sea-Doo watercraft.

Overview

This intake or exhaust valve guide for Sea-Doo is an engine component that supports and aligns the valve stem as it opens and closes during operation. The valve guide 420254882 helps maintain proper valve seating and reduces wear between the valve stem and cylinder head. It is intended for riders and mechanics servicing a Sea-Doo GTX S with the 1503 engine.

Built For Performance

• Precision-machined bore for consistent valve stem fitment and alignment
• Durable construction that withstands the heat and friction of engine operation
• Helps reduce valve stem wobble and prolongs valve and seat life
• Direct replacement for OEM part number 420254882
• Supports proper compression by keeping valves centered in the cylinder head

Fits These Machines

• for Sea-Doo GTX S 1503, 2016

On-The-Job Use

• Top-end engine rebuilds and cylinder head service
• Valve seal replacement jobs where guides are refreshed at the same time
• Routine maintenance on high-hour 1503 engines
• Repair work after valve damage or overheating

Specs At A Glance

Good To Know

Q: How many valve guides does my engine need? A: A 1503 engine uses multiple valve guides, so check your service manual for the exact quantity and order accordingly. Inspect all guides during a top-end rebuild and replace any that show wear or scoring.

Q: Does this valve guide require machining after installation? A: Installation typically requires pressing the guide into the cylinder head, and some applications call for reaming or honing to reach the correct stem-to-guide clearance. Have a qualified engine machinist perform the work for best results.

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