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MISHIMOTO

Mishimoto MMTC-DMAX-03SL Trans Cooler for Duramax 6.6 LB7/LLY 2003-05

Mishimoto MMTC-DMAX-03SL Trans Cooler for Duramax 6.6 LB7/LLY 2003-05

SKU:M1NMMTCDMAX03

Regular price $591.99
Regular price Sale price $591.99
Sale Sold out
Shipping calculated at checkout.

Low stock

Quantity
  • Genuine brand-name parts
  • Ships from US warehouse
  • 30-day returns

Fits: 2003–2005 Chevrolet

  • Direct-fit for all 2003-2005 Chevrolet/GMC 6.6L Duramax (LB7/LLY)
  • Stacked-plate construction for maximum durability and superior cooling
  • CNC-machined adapters make it easy to connect Mishimoto cooler to stock fluid lines or AN lines
  • 174% greater core volume than stock cooler & 192% greater external fin surface area over stock cooler
  • Mishimoto Lifetime Warranty
Brand MISHIMOTO
Manufacturer part number MMTC-DMAX-03SL
UPC / GTIN 811580034084
Weight 11.00 lb
Dimensions (L × W × H) 29 × 4 × 14 in
Category Engine & Drivetrain
Condition New — genuine brand-name part
Genuine brand-name part, full manufacturer warranty. Ships from the closest US warehouse — normally within 1–3 business days. Verify fitment with the manufacturer part number above; not sure? Send us your VIN and we’ll confirm before you order. 30-day returns on unused parts.

Shipping & delivery

Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.

Returns & warranty

Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.

Fitment & part numbers

Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.

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