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Mishimoto Performance Transmission Cooler - MMTC-GMT-99
Theres no greater enemy for a transmission than heat. Whether your 1999-2013 GMT800 or 900 Chevy'silverado/GMC Sierra is a dedicated tow vehicle, hardworking fleet truck, or a daily driver, you need to ensure that your transmission runs cool. Luckily, Mishimoto has developed a cooler to do just that. Our 1999-2013 Chevy'silverado/GMC Sierra performance transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. With a massive core That's 521% larger than stock, and a 278% increase in frontal area, the Mishimoto transmission cooler adds significant cooling capacity to your truck whether you're towing a heavy load, or low-speed driving on the trail. Internal fins and louvered external fins circulate cool air and fluid throughout the core for optimal heat transfer. Included with the Mishimoto transmission cooler are precision-machined -6ORB quick-disconnects that connect directly to the stock lines, or can be removed allow the use of -6AN lines. We also include a relocation bracket for the ambient air temperature sensor to keep full functionality of your truck. An adjustable mounting bracket makes installing this transmission cooler a breeze in an hour or less. Like all Mishimoto products, our 1999-2013 Chevy'silverado/GMC Sierra transmission cooler is backed by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it.

Purchase Includes:
  • (1) Transmission Cooler
  • (2) Quick-Disconnect Fittings
  • (1) Ambient Air Temp Sensor Bracket
  • (1) Mounting Bracket
  • Mishimoto Lifetime Warranty
Installation Guide



Specifications:
  • Core Construction: Stacked-Plate
  • Core Height (in): 6
  • Core Length (in): 27
  • Core Thickness (in): 1.25
  • Fluid Capacity (qts): 0.65
  • Inlet: -6ORB
  • Outlet: -6ORB
  • Rows: 14


Fitment:
  • Cadillac Escalade 2002-2014
  • Cadillac Escalade ESV 2003-2014
  • Cadillac Escalade EXT 2002-2013
  • Chevrolet Avalanche 1500 2002-2006
  • Chevrolet Avalanche 2007-2013
  • Chevrolet Avalanche 2500 2002-2006
  • Chevrolet Silverado 1500 1999-2013
  • Chevrolet Silverado 1500 Classic 2007
  • Chevrolet Silverado 1500 HD 2001-2006
  • Chevrolet Silverado 1500 HD Classic 2007
  • Chevrolet Silverado 2500 1999-2004
  • Chevrolet Silverado 2500 HD 2001-2013
  • Chevrolet Silverado 2500 HD Classic 2007
  • Chevrolet Silverado 3500 2001-2006
  • Chevrolet Silverado 3500 Classic 2007
  • Chevrolet Silverado 3500 HD 2007-2013
  • Chevrolet Suburban 1500 2000-2014
  • Chevrolet Suburban 2500 2000-2013
  • Chevrolet Tahoe 2000-2014
  • GMC Sierra 1500 1999-2013
  • GMC Sierra 1500 Classic 2007
  • GMC Sierra 1500 HD 2001-2006
  • GMC Sierra 1500 HD Classic 2007
  • GMC Sierra 2500 1999-2004
  • GMC Sierra 2500 HD 2001-2013
  • GMC Sierra 2500 HD Classic 2007
  • GMC Sierra 3500 2001-2006
  • GMC Sierra 3500 Classic 2007
  • GMC Sierra 3500 HD 2007-2013
  • GMC Yukon 2000-2014
  • GMC Yukon XL 1500 2000-2014
  • GMC Yukon XL 2500 2000-2013
  • Chassis Codes: GMT800/GMT900


Other Part Numbers:
Mishimoto #misMMTC-GMT-99

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Mishimoto Banner

Who is Mishimoto?

Mishimoto is an aftermarket automotive company that was established in 2005. They are known for creating the industry’s best performing cooling system components. Today, they have become the market leader and has been chosen by various enthusiasts worldwide.

Parts for All Your Cooling Needs

Mishimoto offers a wide range of products such as couplings, radiators, fans, and other cooling system components for practically every vehicle, may it be a sport compact, truck, jeep, muscle cars, and classic vehicles. They also offer intake systems and intercoolers that help the vehicle gain more horsepower.

Built to Perform Better

The company creates products that are better than the stock components. Their parts are designed to work in higher pressure ratings and are more robust. Hence, they are the brand of choice by tuners and enthusiasts who demand a cooling system that can work for high-performance applications. Many racers choose Mishimoto as it has proven itself to produce race winners whatever racing discipline it is, may it be circuit racing, drag racing, drifting, and off road racing.

Purchase Mishimoto Products at Vivid Racing

Your vehicle cooling system plays a critical role in your vehicle. It keeps the temperature at bay and prevents severe damages caused by overheating. If you want a product that can put your trust in, then Mishimoto is the brand for you. Tested by many racers on the track and a variety of car enthusiasts on the street, you can be sure that you will never go wrong with Mishimoto.

Visit Vivid Racing and check out their list of products that would fit your specific needs.











Mishimoto Automotive ("Mishimoto") warrants its products under this lifetime limited warranty policy ("Warranty Policy"). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a "Mishimoto Product" and collectively, the "Mishimoto Products") and (ii) the original purchaser of such Mishimoto Product ("Purchaser"). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

Pursuant to the terms and conditions of this Warranty Policy, after submission of a valid claim by a Purchaser and regardless of the condition of the product for which such valid claim is submitted, if it is determined by Mishimoto that such Mishimoto Product was not manufactured to Mishimoto's advertised specifications or if such claim was submitted pursuant to Mishimoto's Accident Protection Plan, as described herein, Mishimoto will, at its discretion: (i) repair or replace Purchaser's original Mishimoto Product; (ii) replace Purchaser's original Mishimoto Product with the most current available model (if, for example, the original model of the product for which a valid claim has been submitted is not available); or (iii) provide the purchaser with a gift card redeemable at Mishimoto.com in the amount of the original purchase price of the original Mishimoto Product (if, for example, Mishimoto has discontinued support for a Purchaser's specific application).

To submit a claim for a Mishimoto Product under this Warranty Policy, you must: (i) fully and accurately fill out the online form provided below; and (ii) provide Mishimoto with a copy of an original sales receipt indicating that you are the original Purchaser of the Mishimoto Product for which the claim is being submitted (you must also provide the information described in the paragraph of this Warranty Policy titled "Mishimoto Accident Protection Plan" if you are submitting a claim for a Mishimoto Product damaged in an accident). In addition, if requested by Mishimoto, you must also send the Mishimoto Product for which a claim is being made, all transportation expenses prepaid, to Mishimoto.
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Things
Sale price None
Wholesale price $377.55
Shipping Weight: 9.50
Length: 37
Width: 18
Height: 5
Product Added At Wednesday 22 January, 2025
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
View In Admin

Emissions Info
Carb Approved Yes
Carb Number -
Epa Status N/A
Prop65 Unknown
Carb Required -
Vendors
Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $319.96 $440.00 ? $399.95 ? 2025-07-11 10:34:26


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