You have no items in your shopping cart.

Mishimoto Automatic Transmission Oil Cooler - MMTC-DMAX-03SL

Check if this part fits your vehicle Select your vehicle to confirm fitment before you buy.

Select vehicle
Transmission Cooler, Silver, fits Chevrolet/GMC 6.6L Duramax LB7/LLY 2003-2005
Manufacturer: Mishimoto
Manufacturer part number: MMTC-DMAX-03SL
Old price: $549.00
$498.95
Ship to
*
*
Shipping Method
Name
Estimated Delivery
Price
No shipping options

There's no greater enemy for a transmission than heat. Whether your 2003-2005 Chevy/GMC 6.6L 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 2003-2005 Chevy/GMC 6.6L Duramax transmission cooler utilizes a stacked-plate design for maximum durability and powerful cooling. Aside from It's durable construction, this transmission cooler is significantly larger than the stock core. The Mishimoto transmission cooler boasts a 174-percent greater core volume, and 192-percent greater fin surface area than the stock 2003-2005 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.

Products specifications

Attribute name Attribute value
TechSpec Core Thickness (in) 1.25
TechSpec Rows 13
TechSpec Core Length (in) 27.95
TechSpec Core Height (in) 5.78
TechSpec Engine Codes 6.6L Duramax
TechSpec Chassis Codes LB7--LLY
TechSpec Core Construction N/A
TechSpec Transmission Codes Allison 1000
TechSpec Installation Notes N/A
TechSpec Caution N/A
TechSpec Overall Height (in) N/A
TechSpec Overall Length (in) N/A
TechSpec Includes Mishimoto Stacked Plate Transmission Cooler--CNC-Machined Quick-Disconnect to Hose Barb Adapters--Stock-style Quick-Disconnect Fittings--Transmission Hoses--Mounting Brackets--Worm Gear Clamps--Zip Tie--Mounting Hardware--Includes durable SAE J1532 hose designed specifically for use with transmission fluid
TechSpec Applications N/A
TechSpec Fluid Capacity (qts) N/A
TechSpec Note This kit fits with late 2003 trucks with purple clips. Early 2003 trucks with orange clips should use MMTC-DMAX-01.
SellingPoint01 Direct-fit for all 2003-2005 Chevrolet/GMC with Allison transmission (LB7/LLY)
TechSpec Outlet N/A
TechSpec Inlet N/A
TechSpec Overall Width (in) N/A
SellingPoint02 Stacked-plate construction for maximum durability and superior cooling
SellingPoint03 CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
SellingPoint04 174-percent greater core volume than stock cooler
SellingPoint05 192-percent greater external fin surface area over stock cooler
SellingPoint07 Includes durable SAE J1532 hose designed specifically for use with transmission fluid
SellingPoint08 Mishimoto Lifetime Warranty
SellingPoint09 N/A
SellingPoint10 N/A
SellingPoint11 N/A
SellingPoint12 N/A
SellingPoint13 N/A
SellingPoint14 N/A
SellingPoint15 N/A
Install Difficulty 2
Prop 65 Y/N Y
Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
SellingPoint06 Patent No. US D900,161
🚗 Compatible with
12 vehicles are compatible with this product · 2003–2005
Looking for fitment details? Add your vehicle and we'll show you instantly whether this part fits. + Add Vehicle
Only registered users can write reviews