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Mishimoto 2008-2009 Pontiac G8 Performance Aluminum Radiator

SKU: MISMMRAD-G8-08

Radiators

MM Radiators - Alum...

Mishimoto 2008-2009 Pontiac G8 Performance Aluminum Radiator

SKU: MISMMRAD-G8-08

Radiators

MM Radiators - Alum...

A$1,390.10
IN STOCK! Est Ship 3-5 days. In stock at 1 location (8 available)

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Description

Mishimoto 2008-2009 Pontiac G8 Performance Aluminum Radiator

Give some extra cooling power to the V8 under the hood of your 2008-2009 Pontiac G8 with this Mishimoto Performance Aluminum Radiator. Our radiator replaces the stock thin core and plastic end tanks with a 2.2 inch-thick core and fully TIG-welded aluminum construction for maximum durability. Our custom-engineered, two-row core provides all the cooling your 6.0L V8 needs for everyday commuting, thrashing some back roads, or a day at the track. The Mishimoto 2008-2009 Pontiac GTO Performance Aluminum Radiator is available in a polished finish and provides optimal cooling for both manual and automatic vehicles. This radiator also includes the Mishimoto Lifetime Warranty for a lifetime of worry-free cooling.

Additional Information

Aluminum radiator engineered for efficient heat dissipation and optimal engine cooling. Precision-fit design ensures easy installation, corrosion resistance, and reliable performance across varied driving conditions.

Part Type

Radiator

Data: v4.2 - Upd: 2026-11-09 10:35:43

Features

  • 39-percent increase in core volume
  • All-aluminum construction including durable, TIG-welded end tanks
  • Features a two-row, 56mm-thick core for maximum cooling

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Description:Mishimoto 2008-2009 Pontiac G8 Performance Aluminum Radiator
Install Difficulty:3
Part Number:misMMRAD-G8-08
Feature 1:Direct fit for the 2008-2009 Pontiac G8
Feature 2:39-percent increase in core volume
Feature 3:All-aluminum construction including durable, TIG-welded end tanks
Feature 4:Features a two-row, 56mm-thick core for maximum cooling
Feature 5:Provides effective temperature reduction on the street, track, or drag strip
Feature 6:Increased fluid capacity for improved heat dissipation
Feature 7:Efficient temperature regulation for both stock and modified vehicles
Feature 8:Includes Magnetic Drain Plug to capture any metallic debris/fragments in your cooling system
Feature 9:Includes 19 PSI High-Pressure Radiator Cap which effectively raises the boiling point of engine coolant, providing a safer and more efficient system
Feature 10:Mishimoto Lifetime Warranty
TechSpec Applications:2008-2009 Pontiac G8 V8
TechSpec Chassis Codes:Zeta
TechSpec Core Height (in):15.1
TechSpec Core Length (in):29.4
TechSpec Core Thickness (in):2.2
TechSpec Drain Plug Thread Size:M12 x 1.5
TechSpec Engine Codes:L98--L76--L77
TechSpec Includes:Aluminum Radiator-- Radiator Cap-- Magnetic Drain Plug--Mishimoto Lifetime Warranty
TechSpec Material:Aluminum
TechSpec Note:This radiator has not been tested on 2009.5 or GXP models.
TechSpec Overall Height (in):32.4
TechSpec Overall Length (in):15.1
TechSpec Overall Width (ins):5.9
TechSpec Rows:2

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 05:54:54

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Mishimoto
StreetFX SKU misMMRAD-G8-08
SFX Item ID 4052049
Accounting SKU mis-MMRAD-G8-08
Manufacturer SKU MMRAD-G8-08
Manufacturer UPC 840197719770
Alternative References MIMMMRAD-G8-08, MIO-MMRADG808, MMRAD-G8-08

2008-2009 Pontiac G8 Performance Aluminum Radiator

Mishimoto performance radiators are designed and engineered to maximize cooling efficiency, boost engine functions, and, most of all, protect your engine from overheating. Many stock radiators can't handle the additional heat that comes higher horsepower levels. So, swap out your stock radiator for an all-aluminum Mishimoto.

Key features and benefits of Mishimoto performance radiators include:
• Available for universal and exact fit applications (no cutting or modifications required)
• All-aluminum construction for optimal heat dissipation, improved strength, and reliability
• Increased cooling capacity due to their massive core size
• 100 percent brazed aluminum core for minimal distortion, low stress, and clean joints
• Available in various sizes with 2-row or 3-row cores
• TIG-welded for clean, strong welds and increased durability
• Magnetic drain plugs capture metallic debris or fragments
• Included high-pressure 1.3 bar cap raises the coolant boiling point for greater safety and efficiency
• Automatic transmission and accessory coolers included where applicable

Product Attributes
BrandMishimoto
Manufacturer's Part NumberMMRAD-G8-08
Part TypeRadiators
Product LineMishimoto Performance Radiators
UPC840197719770
Radiator MaterialAluminum
Radiator StyleDownflow
Transmission CoolerYes
Inlet LocationUpper driver side
Outlet LocationLower passenger side
Overall Width (in.)32.40 in.
Overall Height (in.)15.12 in.
Overall Thickness (in.)5.90 in.
Row Quantity2
Radiator FinishNatural
Core Width (in.)29.40 in.
Core Height (in.)15.10 in.
Core Thickness (in.)2.20 in.
Trans Cooler Adapter Fittings IncludedNo
Fan IncludedNo
Radiator Cap IncludedYes
QuantitySold individually.
NotesWill not work on 2009.5 models.

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