Polaris RZR Stainless Head Coolant Fitting -4 AN

Upgrade your cooling system with this Polaris RZR Stainless Head Coolant Fitting, designed as a direct replacement for the factory coolant bleed fitting. This fitting allows you to convert from the factory plastic clip-on style to a more secure -4 AN connection.

Machined from 303 stainless steel, this Pro XP and Turbo R coolant fitting offers excellent corrosion resistance and durability for demanding off-road and high-performance applications. Unlike the factory plastic fitting, this stainless upgrade provides a stronger, more reliable connection for custom coolant routing setups.

This Polaris RZR head coolant fitting is ideal for performance builds, race applications, and anyone converting to AN push lock fittings for improved serviceability and reliability.

Made in the USA.

AN Push Lock fittings and hose are available separately in the Engine Parts section.

Features

• Direct replacement for factory coolant bleed fitting
• Converts to -4 AN connection
• Machined from 303 stainless steel
• Corrosion-resistant construction
• Stronger and more reliable than factory plastic fitting
• Made in the USA
• Designed for performance and custom coolant routing

Fitment

Fits Polaris RZR models:

• Pro XP
• Pro R
• Turbo R
• Pro S
• Xpedition
• XP1000 (2024 and newer)

Best For

• Performance Polaris RZR builds
• Turbocharged applications
• Custom coolant line routing
• Replacing factory plastic bleed fittings
• Race and high-heat environments

FAQs

What does this fitting replace?
It replaces the factory coolant bleed fitting on the cylinder head.

What size AN connection does it support?
It allows connection to a -4 AN fitting.

Is this stronger than the factory fitting?
Yes. It is machined from 303 stainless steel, offering improved durability over the factory plastic design.

Is this a direct fit?
Yes. It is designed as a direct replacement for the listed Polaris RZR models.