The Mishimoto radiator fits 2017-2019 L5P Duramax equipped vehicles with just minor trimming of the radiator fan shroud to accommodate our thicker core. We've also included a Mishimoto Magnetic Drain Plug to aid in capturing any metallic debris in your coolant, further extending the life of all the components in your cooling system. Like all our Duramax products, this radiator includes the Mishimoto Lifetime Warranty for a lifetime of performance.
Performance Aluminium Radiator, fits Chevrolet/GMC 6.6L Duramax 2017-2019 PRE-SALE
MISHI POINTS INFO

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- Fits 2017-2019 Chevrolet/GMC 6.6L Duramax
- Substantial 25-percent increase in coolant capacity over stock radiator
- 14-percent increase in total core volume over stock radiator
- Strutted tubes throughout for maximum rigidity and durability
- Louvered fins for improved heat dissipation
- All-aluminum design with precision TIG-welded end tanks
- Includes Mishimoto Magnetic Drain Plug to capture metallic debris within cooling system
- Pair with Mishimoto Silicone Coolant Hose Kit for even greater cooling system protection
- Patent No. US D1,012,790 S
- Mishimoto Lifetime Warranty
- Note: Coupons and discounts do not apply to items in pre-sale
Key Features
- Fits 2017-2019 Chevrolet/GMC 6.6L Duramax
- Substantial 25-percent increase in coolant capacity over stock radiator
- 14-percent increase in total core volume over stock radiator
- Strutted tubes throughout for maximum rigidity and durability
- Louvered fins for improved heat dissipation
- All-aluminum design with precision TIG-welded end tanks
- Includes Mishimoto Magnetic Drain Plug to capture metallic debris within cooling system
- Pair with Mishimoto Silicone Coolant Hose Kit for even greater cooling system protection
- Patent No. US D1,012,790 S
- Mishimoto Lifetime Warranty
The Mishimoto radiator fits 2017-2019 L5P Duramax equipped vehicles with just minor trimming of the radiator fan shroud to accommodate our thicker core. We've also included a Mishimoto Magnetic Drain Plug to aid in capturing any metallic debris in your coolant, further extending the life of all the components in your cooling system. Like all our Duramax products, this radiator includes the Mishimoto Lifetime Warranty for a lifetime of performance.
| Overall Length (in) | 44.37 |
|---|---|
| Overall Height (in) | 29.29 |
| Overall Width (in) | 5.41 |
| Core Length (in) | 33.45 |
| Core Height (in) | 28.58 |
| Core Thickness (in) | 2.67 |
| Fluid Capacity (gal) | 2.61 |
| Rows | 2 |
| Inlet (in) | 2 |
| Applications | GMC Sierra 2500HD V8 (6.6L Diesel) 2017-2019 GMC Sierra 3500HD V8 (6.6L Diesel) 2017-2019 Chevrolet Silverado 2500HD V8 (6.6L Diesel) 2017-2019 Chevrolet Silverado 3500HD V8 (6.6L Diesel) 2017-2019 |
| Engine Codes | L5P |
| Chassis Codes | GMT K2 |
| Note | Requires minor trimming of the radiator fan shroud. Instructions and patch panel included |
| Coolant Capacity | 2.61 |
Fan Shroud Patch Panel
(5) Tree Clips
(2) Washers
(2) M4X.7 X 16mm Bolts
(2) M6X1.0 X 16mm Bolts
Quick Disconnect O-Ring
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.


