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HomeShopTransmission CoolersMishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler – Silver
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Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver - Image 2
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver - Image 3
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver - Image 4
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver - Image 5
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver - Image 6
Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler - Silver - Image 7

Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler – Silver

SKU: MMTC-DMAX-17SL

Original price was: $550.00.Current price is: $499.95.

In stock

5 in stock

There’s no greater enemy for a transmission than heat. Whether your 2017-2019 Chevy/GMC 6.6L L5P Duramax is a dedicated tow vehicle, hardworking fleet truck, or a daily driver with a liking for the drag strip, you need to ensure that your transmission runs cool.Luckily, Mishimoto has developed a direct-fit transmission cooler to do just that. Our 2017-2019 Chevy/GMC 6.6L L5P Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from its durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 67-percent greater core volume, and 164-percent greater fin surface area than the stock 2017-2019 L5P Duramax transmission cooler.The included CNC-machined adapters connect directly to the stock transmission cooler lines for leak-free cooling. Direct-fit brackets and tailor-made hoses make installation easy. Like all Mishimoto products, this transmission cooler is backed up by our Lifetime Warranty with Accident Protection for worry-free cooling as long as you own it.
  • CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
  • Direct-fit for all 2017-2019 Chevrolet/GMC with Allison transmission (L5P)
  • Stacked-plate construction for maximum durability and superior cooling
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Description

Ensure optimal transmission performance with the Mishimoto 17-19 GM 6.6L Duramax (L5P) Transmission Cooler. Designed specifically for Chevrolet Silverado 2500 HD and 3500 HD models from 2017 to 2019, this direct-fit cooler is engineered to keep your transmission running cooler under demanding conditions. Its stacked-plate construction provides maximum durability and efficient heat dissipation, making it suitable for towing, heavy-duty hauling, or high-performance driving. The cooler’s larger core volume and increased fin surface area—67% and 164% respectively, compared to stock—offer superior cooling capacity to prevent overheating and extend transmission lifespan. The included CNC-machined adapters facilitate a secure, leak-free connection to the stock transmission lines or AN lines, simplifying installation. Tailor-made hoses and direct-fit brackets ensure a seamless fit, allowing quick and straightforward installation without modifications. Backed by Mishimoto’s Lifetime Warranty with Accident Protection, this transmission cooler offers peace of mind and reliable performance throughout its service life. Whether you are a fleet operator, a serious off-road enthusiast, or a daily driver seeking enhanced cooling, this cooler is an excellent upgrade to maintain transmission health and performance in your Chevy or GMC Duramax diesel truck.

Features:

  • CNC-machined adapters for easy connection to stock or AN fluid lines
  • Direct-fit design for 2017-2019 Chevrolet Silverado 2500 HD and 3500 HD with L5P Duramax
  • Stacked-plate construction for maximum durability and superior heat dissipation

Fitment:
Chevrolet Silverado 2500 HD High Country 2017
Chevrolet Silverado 2500 HD High Country 2018
Chevrolet Silverado 2500 HD High Country 2019
Chevrolet Silverado 2500 HD LT 2017
Chevrolet Silverado 2500 HD LT 2018
Chevrolet Silverado 2500 HD LT 2019
Chevrolet Silverado 2500 HD LTZ 2017
Chevrolet Silverado 2500 HD LTZ 2018
Chevrolet Silverado 2500 HD LTZ 2019
Chevrolet Silverado 2500 HD WT 2017
Chevrolet Silverado 2500 HD WT 2018
Chevrolet Silverado 2500 HD WT 2019
Chevrolet Silverado 3500 HD High Country 2017
Chevrolet Silverado 3500 HD High Country 2018
Chevrolet Silverado 3500 HD High Country 2019
Chevrolet Silverado 3500 HD LT 2017
Chevrolet Silverado 3500 HD LT 2018
Chevrolet Silverado 3500 HD LT 2019
Chevrolet Silverado 3500 HD LTZ 2017
Chevrolet Silverado 3500 HD LTZ 2018
Chevrolet Silverado 3500 HD LTZ 2019
Chevrolet Silverado 3500 HD WT 2017
Chevrolet Silverado 3500 HD WT 2018
Chevrolet Silverado 3500 HD WT 2019

Additional information

Weight 10.1 lbs
Dimensions 34.7 × 10.9 × 4.6 in
air_freight_prohibited

false
not_carb_approved

false
ltl_freight_required

false
prop_65

Y
part_type

automotive
epa

N/A
carb_acknowledgement_required

false
regular_stock

t
upc

840197700785
brand

Mishimoto
part_number

MMTC-DMAX-17SL

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