Mishimoto · New
Mishimoto 04-06 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit - Black
MPN MMOC-GTO-04TBK · Store SKU misMMOC-GTO-04TBK
Supplier stock checked 11/7/2026, 12:06:33 PM UTC. Adding a part does not reserve it.
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Product details
LS series engines are simple, powerful, reliable machines, but no engine can deal with high oil temperatures. To cool the GTO's massive engine, we picked our largest oil cooler for the job. The 25-row stacked-plate cooler will have no problem making sure oil is at an optimal temperature. On the other end of this GTO oil cooler kit is a specially designed oil line adapter that bolts to the oil filter housing to allow for the attachment of our --AN stainless steel lines. The tight space restrictions eliminated the possibility of using a thermostatic sandwich plate, which we use on most of our other direct-fit oil cooler kits. Instead our In-line Oil Thermostat is used to regulate oil temperatures. This meticulously designed thermostat mounts under the headlight by means of its own direct-fit bracket, and will make sure your oil stays at a happy 185 F. During the testing process of this GTO oil cooler, the in-line thermostat was not used in order to eliminate it as a regulating variable. This means oil is constantly flowing through the cooler during testing, and these tests showed a 65 F oil temperature drop. This massive drop shows the cooling capabilities of this GTO oil cooler kit. Just like all of Mishimoto's GTO parts, this kit comes with the Mishimoto Lifetime Warranty to make sure your oil temperatures are always on point. High-performance engine oil cooler designed to regulate oil temperature and protect critical engine components. Efficient heat dissipation improves durability, maintains lubrication, and ensures reliable performance. Oil Cooler Kit, Black, Thermostatic, fits Pontiac GTO 2004-2006 Pontiac GTO Thermostatic Oil Cooler Kit
Manufacturer fitment & guides
- 2004 Pontiac GTO Base 5.7 Liter 4L60-E, 2004 Pontiac GTO Base 5.7 Liter T56, 2005-2006 Pontiac GTO Base 6.0 Liter 4L65-E, 2005-2006 Pontiac GTO Base 6.0 Liter T56
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- California Proposition 65: Y
