Mishimoto oil coolers are engineered for direct fit and provide reliable, high-performance solutions to keep your engine running at its best. Their oil coolers are crafted with efficient tube-and-fin designs and high-quality aluminum construction to effectively lower oil temperatures, preventing overheating and improving engine longevity.
Fitment Information
- Pontiac GTO 5.7L V8 (2004, 2005, 2006)
- Pontiac GTO 6.0L V8 (2005, 2006)
Caution
- It is the installer’s responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation.
Specs & Features
- Reduces oil temperatures by 65°F (without in-line thermostat installed)
- Mishimoto In-Line Oil Thermostat maintains optimum 185° oil temperature
- Minimal pressure drop
- Application-specific mounting brackets
- 25-row stacked-plate oil cooler mounted in upper kidney grille for optimum airflow
- Includes CNC-machined application-specific oil adapter
- Pre-made stainless steel braided oil lines with durable -AN fittings
- Cooler available in either Sleek Silver or Stealth Black
- Increases oil capacity by 1.0 qt
- Mishimoto Lifetime Warranty
- A perfect complement to the Mishimoto Pontiac GTO Performance Aluminum Radiator
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Install Torque Specs
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Torque adapter bolts to between 108 in-lbs (9 ft-lbs) and 120 in-lbs (10 ft-lbs). Recommended torque specification for all straight fittings and banjo bolts: 15-25 ft/lbs (operating range). Do not exceed the maximum torque rating of 35 ft/lbs. It is the installer’s responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation.
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Purchase Includes:
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- (3) Application-Specific Mounting Brackets
- (1) 25-Row Oil Cooler (Silver or Black)
- (1) Mishimoto In-Line Oil Thermostat
- (1) In-Line Oil Thermostat Mounting Bracket
- (1) Mishimoto LS1/LS2 Oil Cooler Adapter
- (1) 2′, 1″ Stainless Steel Braided Hose w/ 45° and Straight -10AN Fittings
- (1) 2′, 2″ Stainless Steel Braided Hose w/ 90° -10AN Fittings
- (1) 2′, 2.5″ Stainless Steel Braided Hose w/ 45° & 120° -10AN Fittings
- (1) 3′, Stainless Steel Braided Hose w/ 90° -10AN Fittings
- (1) Banjo Fitting w/ Bolt M20 x -10AN, Black
- (1) M20 x -10AN Straight Fitting, Black
- (1) Mounting Hardware Set
- Mishimoto Lifetime Warranty
Product Description
The LS-powered Pontiac GTO is a beast built for raw power, torque, and high-performance thrills, but extreme oil temperatures can rob your engine of efficiency and longevity. That’s why the Mishimoto Performance Oil Cooler Kit is engineered to take cooling to the next level, keeping your 6.0L V8 running strong, whether you’re tearing up the track or crushing the streets. Featuring a massive 25-row stacked-plate cooler, this system delivers unmatched heat dissipation, preventing oil breakdown, reducing wear, and optimizing performance for extended high-RPM runs.
To ensure maximum cooling efficiency, this kit includes a precision-machined oil line adapter that seamlessly bolts to the oil filter housing, routing -AN stainless steel lines for superior durability and leak-proof performance. Space constraints meant a traditional thermostatic sandwich plate wasn’t an option, so Mishimoto designed a dedicated In-line Oil Thermostat, mounting neatly under the headlight with its own direct-fit bracket, keeping oil temps at a steady 185°F. During testing, without the thermostat regulating flow, we recorded a staggering 65°F oil temperature drop, proving the cooling dominance of this system. Built to withstand aggressive driving, track abuse, and daily demands, this oil cooler kit is backed by the legendary Mishimoto Lifetime Warranty, so your GTO stays cool, consistent, and ready to unleash its full potential. Upgrade today and experience next-level cooling performance!
