420254882 Valve Guide for Sea-Doo Fish 18-170 1630 2025

Intake or Exhaust Valve Guide for Sea-Doo

This valve guide for Sea-Doo watercraft guides the intake or exhaust valve stem to keep motion true inside the cylinder head, and it carries OEM cross-reference 420254882.

Overview

This valve guide for Sea-Doo is a cylinder head component that holds the intake or exhaust valve in precise alignment as it opens and closes. Built as a direct replacement for OEM 420254882, it helps restore proper valve seating on 1630 engine platforms. It suits riders and shops servicing the Fish 18-170 1630 from 2025.

Built For Performance

• Precision-bored inner diameter for accurate valve stem guidance
• Construction suited to the heat and friction of 1630 engine operation
• Direct cross-reference to OEM part number 420254882
• Works for both intake and exhaust valve positions
• Machined for a consistent press fit into the cylinder head

Fits These Machines

• for Sea-Doo Fish 18-170 1630, 2025

On-The-Job Use

• Top-end rebuilds on 1630 engine watercraft
• Cylinder head service and valve replacement jobs
• Maintenance to correct worn valve stem clearance
• Shop repairs on Fish 18-170 models

Specs At A Glance

Good To Know

Q: Does this fit both the intake and exhaust side? A: Yes, this guide is listed for either intake or exhaust valve positions on the 1630 engine. Confirm your model and year before ordering.

Q: Is this an original Sea-Doo part? A: No, this is a replacement valve guide that cross-references OEM number 420254882. It is not an original brand product.

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