Aluminum Radiator Direct Fit Replacement for Yamaha YFM 450 Kodiak 2018 2019 2020 2021 2022 ATV

This aluminum radiator is a precise, direct-fit cooling component designed as a replacement for the 450-class Kodiak ATV platform produced between 2018 and 2022. It mirrors the OEM radiator’s mounting points and hose connections to restore reliable cooling when the engine runs hard on long trails or demanding farm work. Replacing a tired or damaged radiator with this aftermarket unit helps prevent coolant leaks and overheating, keeping your quad ready for tough jobs and daily use.

Built around a rugged aluminum core and TIG-welded assemblies, this replacement radiator delivers durability and cooling performance where it matters most—on steep climbs, muddy trails, or hot workdays. The aftermarket design addresses common wear-and-tear issues like fin damage, end-tank cracks, and degraded sealing surfaces, delivering a reliable cooling solution without the OEM price tag.

Comprehensive Vehicle Fitment

Product Specifications

OEM & Aftermarket Cross-Reference Information

What's Included

This replacement radiator ships as a complete assembly ready to install on your Kodiak 450. The box includes:

• Radiator Assembly – aluminum core with mounting provisions
• Cap – included in some stock configurations
• Installation Instructions – printed or digital guide

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility – engineered to drop in with OEM mounting points and hose connections for a fast, tool-friendly install.
• OEM Cross-Reference – maintains reliable compatibility with BB5-E2461-00-00 references, ensuring replacement accuracy.
• Premium Materials – rugged aluminum core with TIG-welded construction for lasting durability under off-road conditions.
• Performance Restoration – improved cooling efficiency helps prevent overheating on long trails or heavy workloads.
• Vibration-Resistant Design – robust end tanks and mounting geometry to withstand rough terrain.
• Cost-Effective – a practical alternative to OEM pricing without sacrificing reliability.

Installation Notes:

• Drain the cooling system before removing the old radiator to minimize coolant loss and spills.
• Remove the shroud, hoses, and clamps carefully; label hoses for correct reassembly.
• Inspect radiator mounting brackets and grommets; replace worn hardware to prevent vibration-induced leaks.
• Clean the radiator fins with a soft brush and compressed air from the backside to avoid fin damage.
• Reconnect hoses, ensure hose clamps are snug but not overtightened, and check for leaks after initial start-up.
• Bleed the cooling system and refill with the correct 50/50 coolant mix, then run the engine and monitor temperature with a test ride.

Why Upgrade?

Running a worn or damaged radiator dramatically increases the risk of coolant loss and engine overheating, which can lead to head gasket failure or warped components. This aftermarket replacement restores efficient cooling and reliable operation, preserving engine integrity during demanding trail or farm use.