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Pontiac GTO Performance Aluminum Radiator, 2005–2006

Pontiac GTO Performance Aluminum Radiator, 2005–2006
Pontiac GTO Performance Aluminum Radiator, 2005–2006
Pontiac GTO Performance Aluminum Radiator, 2005–2006

Regular Price: $546.00

Sale Price $409.95


  • Your vehicle requires 2 bottles of full strength coolant or 4 bottles of premixed coolant.
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Installation Difficulty

  • 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

Every Mishimoto race aluminum radiator is designed and engineered to maximize cooling efficiency, boost engine functions, and most importantly, protect your car from overheating on and off the track. Lightweight, made from 100% brazed aluminum, and cast end tanks TIG-welded for increased durability, Mishimoto race radiators will enhance the overall performance of your engine. Like all Mishimoto aluminum radiators, this race aluminum radiator comes with the signature Mishimoto Lifetime Warranty.

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.



Material Aluminum

Note This item is for manual and automatic transmission vehicles. This radiator will fit with Svede and other aftermarket OTR cold-air intakes.

Due to the added thickness of the Mishimoto radiator, the clip securing the radiator cover to the electric fan shroud will need to be trimmed for proper fitment. The remaining clips securing the radiator cover to the core support will sufficiently secure it in position.

Engine Codes LS-2 (6.0L)

Fits 2005–2006 Vauxhall Monaro (5.7L/6.0L)
2005–2006 Holden Monaro (6.0L Engine Only)

Overall Height 31.95"

DPI 2987

Drain Plug Length 1.5mm

Drain Plug Thread Size (M12)

Overall Length 19.65"

Tank Wall Thickness 0.08"

Outlet 1.375"

Rows 2

Inlet 1.375"

Coolant Capacity 3.58

Dual Pass False

Purchase Includes Mishimoto Radiator
Mishimoto Radiator Cap
Magnetic Drain Plug
Mishimoto Lifetime Warranty

Overall Width 6.38"

Core Length 26.55"

Core Height 17"

Core Thickness 1.96"

Fill Neck 1.5"

Overall Length (in) 19.65

Overall Height (in) 31.95

Overall Width (in) 6.38

Rows 2

Engineering Blog

2004–2006 Pontiac GTO Performance Aluminum Radiator Development

2004–2006 Pontiac GTO Performance Aluminum Radiator Development

May 23, 2020

Want to see all the product details? Check out our product page linked below! Mishimoto Pontiac GTO Performance Aluminum Radiator Product Introduction and Goals Our team has received numerous requests for a reasonably priced, high-performance aluminum radiator for the new-age Pontiac GTO. After reviewing the project and evaluating the current offerings available, we found a … Continue reading 2004–2006 Pontiac GTO Performance Aluminum Radiator Development →

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