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
Low stock
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- Genuine brand-name parts
- Ships from US warehouse
- 30-day returns
The Mishimoto MMTC-DMAX-03SL is a trans cooler for 2003–2005 Chevrolet. It is a new, genuine Mishimoto part with the manufacturer warranty, shipped from the closest US warehouse.
Fits: 2003–2005 Chevrolet
Key features
- 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
Specifications
| Brand | Mishimoto |
|---|---|
| Manufacturer part number | MMTC-DMAX-03SL |
| Part type | Hose Pipe Fitting |
| UPC / GTIN | 811580034084 |
| Vehicle fitment | 2003–2005 Chevrolet |
| Weight | 11.00 lb |
| Dimensions (L × W × H) | 29 × 4 × 14 in |
| Category | Engine & Drivetrain |
| Condition | New — genuine brand-name part |
| Warranty | Manufacturer warranty |
| Also searched as | MMTC DMAX 03SL, MMTCDMAX03SL |
Questions
Will this fit my vehicle?
It is listed for 2003–2005 Chevrolet. Trim, engine and options can change the part a vehicle needs — send us your VIN and we will confirm before you order.
How fast does it ship?
Orders ship from the closest US warehouse, normally within 1–3 business days, with tracking by e-mail.
Is this a genuine Mishimoto part?
Yes — new and genuine Mishimoto, with the manufacturer warranty.
Can I return it?
Yes. Unused items can be returned within 30 days — see our refund policy for the details.
Shipping & delivery
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
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
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.
