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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit product view

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Mishimoto MMOC-GTO-04T installed angle on vehicle

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit core and end tank detail

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit packaging and included hardware

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Mishimoto 2004-2006 application close-up of MMOC-GTO-04T

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit mounting points detail

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit finish and construction detail

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit inlet and outlet close-up

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit compared with stock packaging

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit

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Brand: MishimotoSKU / Part #: MISMMOC-GTO-04T

Regular price: $822.95
Regular price: ~~$905.00~~
Sale price: $822.95
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Subtotal: $822.95

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Mishimoto 2004-2006 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit

Subtotal: $822.95

Not sure it fits? Text us your VINSee all fitment

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Overview

This Mishimoto performance cooler is a direct-fit upgrade for 2004-2006 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

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. 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 2004-2006 Pontiac GTO
Reduces oil temperatures by 65F (without in-line thermostat installed)
Mishimoto In-Line Oil Thermostat maintains optimum 185F oil temperature
Minimal pressure drop
Application-specific mounting brackets
Mishimoto Lifetime Warranty

What's Included

Application-Specific Mounting Brackets
25-Row Oil Cooler
Mishimoto In-Line Oil Thermostat
In-Line Oil Thermostat Mounting Bracket
Mishimoto LS1/LS2 Oil Cooler Adapter
2-ft, 1-in Stainless Steel Braided Hose w/ 45 and Straight -10AN Fittings
2-ft, 2-in Stainless Steel Braided Hose w/ 90 -10AN Fittings
2-ft, 2.5-in Stainless Steel Braided Hose w/ 45 & 120 -10AN Fittings
3-ft, Stainless Steel Braided Hose w/ 90 -10AN Fittings
Banjo Fitting w/ Bolt M20 x -10AN, Black
Mishimoto Lifetime Warranty

Specifications

Part number	MMOC-GTO-04T
Brand	Mishimoto
Type	cooler
Engine codes	LS-1 LS-2
Chassis codes	V-Body
Shipping dimensions	18.1 x 15.3 x 8.3 in (46.0 x 38.9 x 21.1 cm)
Shipping weight	15.2 lb (6.9 kg)

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 2004-2006 (1 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.
Year	Make	Model	Chassis	Engine
2004-2006	Pontiac	GTO	PON-US	—

Fitment

Year	Make	Model

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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