Mishimoto 2005-2006 Pontiac GTO Performance Aluminum Radiator

This Mishimoto performance aluminum radiator is a direct-fit upgrade for 2005-2006 Pontiac applications covering GTO. 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

Keep your Pontiac GTO on the road and out of the shop by upgrading to the Mishimoto Pontiac GTO Performance Aluminum Radiator. Stock plastic radiators are prone to significant wear from constant temperature variation. Our radiator is constructed from high-quality aluminum for optimal heat dissipation and superior reliability. 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

• Direct fit for the 2005-2006 Pontiac GTO
• Reduces coolant temperatures by 15 F (6 C)
• Large two-row brazed aluminum core increases fluid capacity by 0.64 L and provides ideal coolant temperatures on and off the track
• All-aluminum construction with TIG-welded end tanks provides optimal heat dissipation and reliability
• Applicable for both manual and automatic vehicles
• Includes magnetic drain plug and 1.3 bar high-pressure radiator cap
• Mishimoto Lifetime Warranty

What's Included

• Mishimoto Radiator
• Mishimoto Radiator Cap
• Magnetic Drain Plug
• Mishimoto Lifetime Warranty

Specifications

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 2005-2006 (1 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment