Polaris Sportsman Radiator Fits 400 450 500 570 Models 2004 2005 2006 2007 Touring X2

This radiator is a direct-fit cooling module engineered for Polaris Sportsman models in the 400, 450, 500, and 570 families. It replaces worn or leaky radiators on bikes such as the 2004-2005 Sportsman 400, the 2006-2007 Sportsman 450, the 2004-2007 Sportsman 500, and later Touring/X2/570 variants across multiple years. Replacing the radiator restores efficient cooling, helps prevent overheating on long trail rides, and keeps engines performing reliably under rugged farm and off-road conditions.

Built to endure rugged use, this aftermarket unit features heavy-duty all-aluminum construction with a crossflow core designed for improved heat dissipation and corrosion resistance. It provides a cost-effective, OE-spec alternative that delivers dependable cooling performance for trail and farm work, with straightforward bolt-in fit for the listed Polaris models. The radiator is designed to meet or exceed OEM dimensions and flow characteristics to maintain proper engine temperature under load.

Comprehensive Vehicle Fitment

Product Specifications

OEM & Aftermarket Cross-Reference Information

What's Included

This radiator ships as a complete assembly ready for installation.

• Radiator Assembly

Note: Related hoses, clamps, and mounting hardware may be sold separately depending on the seller.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility – Precisely designed to bolt in where the OEM radiator sits, with same inlet/outlet sizing and mounting points for the listed Polaris models.
• OEM Cross-Reference – Backed by OEM cross-reference numbers (1240152, 1241477, 1240305, 1240520) to ensure broad compatibility with Polaris catalogs.
• Premium Materials – All-aluminum construction (3003 alloy) delivers stronger heat transfer and corrosion resistance for tough trail and farm conditions.
• Enhanced Heat Dissipation – Crossflow core design improves coolant flow and heat rejection, helping maintain consistent engine temperatures under load.
• Corrosion Resistance – Aluminum design plus protective features from high-quality aftermarket radiators extend service life in rugged climates.
• Reliability for Trail & Farm – Built to withstand vibration and immersion risks common to off-road and agricultural use, keeping you moving after rough terrain.

Installation Notes:

• Drain and safely dispose of old coolant, then flush the cooling system to remove any debris before installation.
• Inspect and, if needed, replace radiator mounts, hoses, and clamps to ensure a clean, leak-free seal.
• Clean the radiator shroud mounting surfaces and verify there is no debris that could restrict airflow.
• Install the radiator with the correct orientation to ensure unobstructed airflow and attach all mounting hardware securely to factory specifications.
• Reconnect the inlet and outlet hoses firmly, then bleed the cooling system to remove trapped air; refill with the recommended coolant type and mixture.
• Test for leaks after a complete cold-start cycle and verify the cooling fan engages normally during operation.

Why Upgrade?

Running a worn-out radiator on Polaris Sportsman models can lead to coolant loss, overheating, and accelerated engine wear. Replacing with this aftermarket radiator restores proper cooling efficiency, reduces the risk of boil-overs, and helps maintain long-term reliability in demanding trail or farm use.