Aluminium Radiator, fits Chevrolet/GMC 6.6L Duramax 2001-2005
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- 100% brazed aluminium core delivers more efficient heat transfer than the factory unit — built for the sustained towing and hauling demands of the early Duramax diesel.
- Natural aluminium finish and TIG-welded construction deliver durability and corrosion resistance the factory plastic-tank radiator cannot match over time.
- Magnetic Drain Plug included — captures harmful metallic debris with no additional hardware needed for a complete install.
- TIG-welded aluminium construction replaces the factory plastic-tank radiator that degrades under the sustained heat and pressure of diesel operation.
- 100% brazed aluminium core transfers thermal energy into the airstream more efficiently than the lower-density factory unit under towing and load conditions.
- Confirmed direct fit for the 2001–2005 Chevrolet/GMC trucks equipped with the 6.6L Duramax — no cutting, fabricating, or adapter work required.
- Full aluminium construction handles the thermal demands of stock and modified Duramax builds, including towing-spec and performance-tuned setups.
- Own it for life — backed by Mishimoto's Lifetime Warranty, your investment is protected long after install day.
Key Benefits
- 100% brazed aluminium core delivers more efficient heat transfer than the factory unit — built for the sustained towing and hauling demands of the early Duramax diesel.
- Natural aluminium finish and TIG-welded construction deliver durability and corrosion resistance the factory plastic-tank radiator cannot match over time.
- Magnetic Drain Plug included — captures harmful metallic debris with no additional hardware needed for a complete install.
- TIG-welded aluminium construction replaces the factory plastic-tank radiator that degrades under the sustained heat and pressure of diesel operation.
- 100% brazed aluminium core transfers thermal energy into the airstream more efficiently than the lower-density factory unit under towing and load conditions.
- Confirmed direct fit for the 2001–2005 Chevrolet/GMC trucks equipped with the 6.6L Duramax — no cutting, fabricating, or adapter work required.
- Full aluminium construction handles the thermal demands of stock and modified Duramax builds, including towing-spec and performance-tuned setups.
- Own it for life — backed by Mishimoto's Lifetime Warranty, your investment is protected long after install day.
| Overall Length (in) | 45.6 |
|---|---|
| Overall Height (in) | 20.8 |
| Overall Width (in) | 5.4 |
| Core Length (in) | 34.06 |
| Core Height (in) | 19.61 |
| Core Thickness (in) | 2.2 |
| Fluid Capacity (gal) | 6.87 |
| Rows | 2 |
| Inlet (in) | 1.89 |
| Outlet (in) | 1.89 |
| Drain Plug Thread Size | M12 x 1.5 |
| DPI | 2510 |
| Applications | 2001-2005 Chevrolet Silverado 2500 HD w/ 6.6L Duramax LB7/LLY 2001-2005 Chevrolet Silverado 3500 HD w/ 6.6L Duramax LB7/LLY 2001-2005 GMC Sierra 2500 HD w/ 6.6L Duramax LB7/LLY 2001-2005 GMC Sierra 3500 HD w/ 6.6L Duramax LB7/LLY |
| Coolant Capacity | 6.87 |
Magnetic Drain Plug
Mishimoto Lifetime Warranty
Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.
For our complete warranty policy, please click here.

