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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter product view

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Mishimoto MMOCA-GTO installed angle on vehicle

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter core and end tank detail

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter packaging and included hardware

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Mishimoto 2004-2006 application close-up of MMOCA-GTO

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter mounting points detail

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter finish and construction detail

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter inlet and outlet close-up

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter compared with stock packaging

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter

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Brand: MishimotoSKU / Part #: MISMMOCA-GTO

Regular price: $210.95
Regular price: ~~$232.00~~
Sale price: $210.95
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Subtotal: $210.95

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Mishimoto 2004-2006 Pontiac GTO LS1/LS2 Front-Sump Oil Cooler Adapter

Subtotal: $210.95

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

This LS1/LS2 front-sump oil cooler adapter allows you to get creative with your build. It is designed to give you a starting point when designing your own custom oil cooler setup. The adapter and fittings are CNC-machined from 6061 aluminum for superior fitment and durability. 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

Designed for LS1/LS2 equipped vehicles with a front-sump
Allows for use of -10AN fittings for custom oil cooler installation
CNC-machined components, including 6061 aluminum fittings and adapter plates
Two 1/8-in NPT ports (with plugs) for sensors/oil feed/etc.
Includes one straight and one banjo fitting for easy installation of -10AN oil lines Includes power steering relocation bracket
Mishimoto Lifetime Warranty
See all benefits

What's Included

Oil Cooler Adapter Housing & Spacer
Aluminum Power Steering Relocation Bracket
Banjo Fitting w/ Bolt M20 x -10AN, Black
M20 x -10AN Straight Fitting, Black
O-Rings
1/8-in NPT Plugs
Mounting Hardware Set
Mishimoto Lifetime Warranty

Specifications

Part number	MMOCA-GTO
Brand	Mishimoto
Type	cooler
Engine codes	LS-1 LS-2
Chassis codes	V-Body
Shipping dimensions	12 x 6 x 2.5 in (30.5 x 15.2 x 6.3 cm)
Shipping weight	2 lb (0.9 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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