Mishimoto 2005-2010 Chevrolet Cobalt SS Performance Aluminum Radiator

This Mishimoto performance aluminum radiator is a direct-fit upgrade for 2005-2010 Chevrolet applications covering Cobalt SS. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

The Mishimoto performance aluminum radiator for the 2005–10 Chevrolet Cobalt SS is the ideal upgrade to the stock Cobalt radiator. The last thing you want is to be limited by the factory unit during a hot day at the strip or when you're stuck in traffic. These kits are engineered around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

• One-row brazed aluminum core provides improved cooling efficiency compared to the factory radiator, keeping Cobalt SS temps in check during aggressive street and track use.
• Polished aluminum end tanks upgrade the engine bay while full aluminum construction delivers heat and pressure tolerance the plastic-tank factory unit can't match.
• Magnetic Drain Plug is included to capture metallic debris — no additional hardware needed for a complete install.
• Full aluminum construction with TIG-welded end tanks eliminates the stock plastic end tanks that crack under heat cycling and repeated track sessions.
• Brazed aluminum core transfers thermal energy into the airstream more efficiently than the lower-density OEM unit during extreme driving conditions.
• Confirmed direct fit for the 2005–2010 Chevrolet Cobalt SS — no cutting, fabricating, or adapter work required.
• Handles the cooling demands of stock and modified Cobalt SS builds running the street or track.

What's Included

• Mishimoto Radiator
• Magnetic Drain Plug w/ Dowty Oil Seal
• Mishimoto Lifetime Warranty

Specifications

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 2005-2010 (1 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment