Mishimoto 11-14 Chevy/GMC 6.6L Duramax LML Transmission Cooler

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SKU: MISMMTC-DMAX-11SL
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About Mishimoto Mishimoto is the modern leader in performance cooling ...Read More

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Sale price$498.95 Regular price$549.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Keep Your LML Duramax Transmission Cool Under Pressure

High transmission temperatures can lead to accelerated wear and costly repairs. For owners of the 2011-2014 Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500 HD/3500 equipped with the 6.6L Duramax LML engine, ensuring robust transmission cooling is paramount. The Mishimoto direct-fit transmission cooler is engineered to provide superior thermal management, safeguarding your transmission during demanding use.

Enhanced Cooling Efficiency

This transmission cooler utilizes an advanced stacked-plate design, delivering exceptional durability and significantly improved heat dissipation over the factory unit. Mishimoto's design offers:

  • Core Volume: 41% larger than the stock cooler.
  • Fin Surface Area: 73% greater than the stock cooler.

These enhancements result in lower operating temperatures for your transmission fluid, crucial for maintaining performance and extending the life of internal components. The kit includes precisely machined CNC adapters, ensuring a straightforward and secure installation into your Duramax truck.

Key Features:

  • Direct fit for 2011-2014 Chevrolet/GMC 6.6L Duramax (LML)
  • Durable stacked-plate core for optimal heat transfer
  • Increased core volume and fin surface area
  • Includes CNC-machined adapters for easy installation
  • Available in a silver finish

Upgrade your Duramax truck's cooling system with the Mishimoto transmission cooler and drive with confidence, knowing your transmission is protected from excessive heat. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2011-2014 Chevrolet Silverado 2500 HD LT
2011-2014 Chevrolet Silverado 2500 HD LTZ
2011-2014 Chevrolet Silverado 2500 HD WT
2011-2014 Chevrolet Silverado 3500 HD LT
2011-2014 Chevrolet Silverado 3500 HD LTZ
2011-2014 Chevrolet Silverado 3500 HD WT
2011-2014 GMC Sierra 2500 HD SLE
2011-2014 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2011-2014 GMC Sierra 3500 HD Denali
2011-2014 GMC Sierra 3500 HD SLE
2011-2014 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Keep Your LML Duramax Transmission Cool Under Pressure

High transmission temperatures can lead to accelerated wear and costly repairs. For owners of the 2011-2014 Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500 HD/3500 equipped with the 6.6L Duramax LML engine, ensuring robust transmission cooling is paramount. The Mishimoto direct-fit transmission cooler is engineered to provide superior thermal management, safeguarding your transmission during demanding use.

Enhanced Cooling Efficiency

This transmission cooler utilizes an advanced stacked-plate design, delivering exceptional durability and significantly improved heat dissipation over the factory unit. Mishimoto's design offers:

  • Core Volume: 41% larger than the stock cooler.
  • Fin Surface Area: 73% greater than the stock cooler.

These enhancements result in lower operating temperatures for your transmission fluid, crucial for maintaining performance and extending the life of internal components. The kit includes precisely machined CNC adapters, ensuring a straightforward and secure installation into your Duramax truck.

Key Features:

  • Direct fit for 2011-2014 Chevrolet/GMC 6.6L Duramax (LML)
  • Durable stacked-plate core for optimal heat transfer
  • Increased core volume and fin surface area
  • Includes CNC-machined adapters for easy installation
  • Available in a silver finish

Upgrade your Duramax truck's cooling system with the Mishimoto transmission cooler and drive with confidence, knowing your transmission is protected from excessive heat. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2011-2014 Chevrolet Silverado 2500 HD LT
2011-2014 Chevrolet Silverado 2500 HD LTZ
2011-2014 Chevrolet Silverado 2500 HD WT
2011-2014 Chevrolet Silverado 3500 HD LT
2011-2014 Chevrolet Silverado 3500 HD LTZ
2011-2014 Chevrolet Silverado 3500 HD WT
2011-2014 GMC Sierra 2500 HD SLE
2011-2014 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2011-2014 GMC Sierra 3500 HD Denali
2011-2014 GMC Sierra 3500 HD SLE
2011-2014 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT

Product Details

Product Description

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Keep Your LML Duramax Transmission Cool Under Pressure

High transmission temperatures can lead to accelerated wear and costly repairs. For owners of the 2011-2014 Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500 HD/3500 equipped with the 6.6L Duramax LML engine, ensuring robust transmission cooling is paramount. The Mishimoto direct-fit transmission cooler is engineered to provide superior thermal management, safeguarding your transmission during demanding use.

Enhanced Cooling Efficiency

This transmission cooler utilizes an advanced stacked-plate design, delivering exceptional durability and significantly improved heat dissipation over the factory unit. Mishimoto's design offers:

  • Core Volume: 41% larger than the stock cooler.
  • Fin Surface Area: 73% greater than the stock cooler.

These enhancements result in lower operating temperatures for your transmission fluid, crucial for maintaining performance and extending the life of internal components. The kit includes precisely machined CNC adapters, ensuring a straightforward and secure installation into your Duramax truck.

Key Features:

  • Direct fit for 2011-2014 Chevrolet/GMC 6.6L Duramax (LML)
  • Durable stacked-plate core for optimal heat transfer
  • Increased core volume and fin surface area
  • Includes CNC-machined adapters for easy installation
  • Available in a silver finish

Upgrade your Duramax truck's cooling system with the Mishimoto transmission cooler and drive with confidence, knowing your transmission is protected from excessive heat. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2011-2014 Chevrolet Silverado 2500 HD LT
2011-2014 Chevrolet Silverado 2500 HD LTZ
2011-2014 Chevrolet Silverado 2500 HD WT
2011-2014 Chevrolet Silverado 3500 HD LT
2011-2014 Chevrolet Silverado 3500 HD LTZ
2011-2014 Chevrolet Silverado 3500 HD WT
2011-2014 GMC Sierra 2500 HD SLE
2011-2014 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2011-2014 GMC Sierra 3500 HD Denali
2011-2014 GMC Sierra 3500 HD SLE
2011-2014 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT

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