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Mishimoto 2020+ Chevrolet / GMC Duramax L5P 6.6L Transmission Cooler

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Regular price $350.95
Product INFO
  • Vendor Mishimoto
  • SKU T14.1067017
  • Barcode MMTC-DMAX-20
Pre-Order
Ships when available
VETERAN & FIRST RESPONDER DISCOUNT

Veterans, Active-Duty Military, First Responders Discount

FASTER SHIPPING

99% of orders leave the warehouse within 1-3 days of payment

EASY RETURN POLICY

Returns accepted within 30 days of purchase

Manufacturer Part # : MMTC-DMAX-20


Market Description

The factory transmission cooling on the 2020+ Chevrolet and GMC Duramax L5P 6.6L is sized for stock duty, and fluid temperatures climb fast under the sustained load of towing and heavy hauling. Heat is what wears a transmission out. The Mishimoto Transmission Cooler attacks the problem with raw capacity: a tube-and-fin core with a 245% increase in core volume over stock, giving the system far more headroom to keep fluid temperatures in a safe range when the truck is working hardest.----The core also adds a 137% increase in frontal area, putting more of the cooler directly in the incoming airstream, and a 173% increase in external fin area to move heat from the fluid into the air more efficiently. All-aluminum construction handles the thermal demands of stock and modified Duramax trucks alike, and the cooler retains the factory transmission line connections for a clean, complete upgrade with no additional adapters or plumbing.----Direct fit for the 2020+ Chevrolet and GMC Duramax L5P 6.6L. No drilling, cutting, or modification required. Backed by the Mishimoto Lifetime Warranty.

Product Description - Extended

Automatic transmission oil cooler designed to regulate fluid temperature and prevent overheating. Enhances transmission longevity, maintains performance, and features durable construction with a precise fit.

Features and Benefits

  • 245% larger core volume for serious heat dissipation - the oversized tube-and-fin core gives the transmission far more capacity to pull heat from the fluid under tow and heavy load.
  • Tube-and-fin aluminum core built for sustained load - durable all-aluminum construction holds transmission temps in check through the heat of towing where stock cooling falls short.
  • 173% more external fin area accelerates heat transfer - the added fin surface moves thermal energy from the fluid into the airstream far more efficiently than the stock cooler.
  • Factory connections, no adapters required - the cooler uses the OEM transmission line connections for a complete bolt-on upgrade with no extra fittings or plumbing work.
  • 137% more frontal area catches more cooling airflow - the larger frontal core area puts more of the cooler in the incoming airstream to drop fluid temps faster.
  • Drops in without modification - confirmed direct fit for 2020+ Chevrolet and GMC Duramax L5P 6.6L trucks, with no cutting, fabricating, or adapter work required
  • Own it for life - backed by Mishimoto’s Lifetime Warranty, your investment is protected long after install day.

Product Description - Long

Transmission Cooler, Silver, fits Chevrolet/GMC 6.6L Duramax L5P 2020+

Product Description - Short

  • Mishimoto 2020+ Chevrolet / GMC Duramax L5P 6.6L Transmission Cooler
  • Auto Tran Oil Cooler

AAIA Part Type Description

Automatic Transmission Oil Cooler

Product Description - Invoice

Mishimoto MMTC-DMAX-20