SKU: MMRAD-DMAX-17 | UPC: 840197701652
Mishimoto 17-19 Chevrolet/GMC 6.6 L5P Duramax Radiator
Upgrade your 2017-2019 Chevrolet Silverado or GMC Sierra 2500HD 3500HD with the Mishimoto aluminum radiator designed for the 6.6L L5P Duramax diesel engine. This direct-fit replacement addresses stock plastic radiator weaknesses with full aluminum construction for better durability and heat rejection. Enjoy 25% more coolant capacity and 14% increased core volume for enhanced cooling during heavy towing or performance demands.
Key Features
- Full Aluminum Construction: TIG-welded end tanks and tubes resist corrosion and cracking unlike stock plastic improving longevity in rugged conditions
- Expanded Core Design: 24.8 x 22.4 x 2.25 inch core delivers 25% greater coolant capacity and 14% more volume for efficient heat dissipation
- Direct Bolt-On Fit: Matches OEM mounting points for 2017-2019 L5P Duramax trucks with simple fan shroud trimming to fit thicker core
- Magnetic Drain Plug Included: Captures ferrous particles from coolant protecting water pump thermostat and entire cooling system
- Lifetime Warranty: Backed by Mishimoto for worry-free ownership on every L5P Duramax radiator
Product Notes
- Requires minor trimming of OEM radiator fan shroud for installation
- Magnetic drain plug helps trap metal debris extending cooling system life
- Ships in 32 x 28 x 6 inch box weighing 35 lbs total
Installation Notes
- Professional installation recommended.
- Trim OEM fan shroud tabs to clear 2.25 inch thick core
- Uses stock mounting hardware direct bolt-on no modifications to brackets
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2019 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 2500 HD | WT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2017-2019 | GMC | Sierra 2500 HD | Base |
| 2017-2019 | GMC | Sierra 2500 HD | Denali |
| 2017-2019 | GMC | Sierra 2500 HD | SLE |
| 2017-2019 | GMC | Sierra 2500 HD | SLT |
| 2017-2019 | GMC | Sierra 3500 HD | Base |
| 2017-2019 | GMC | Sierra 3500 HD | Denali |
| 2017-2019 | GMC | Sierra 3500 HD | SLE |
| 2017-2019 | GMC | Sierra 3500 HD | SLT |
Why Choose Mishimoto?
- Engineered specifically for Duramax L5P cooling demands with proven track record
- 100% aluminum build withstands high-pressure diesel operation
- Direct-fit design tested for perfect compatibility on Silverado Sierra HD trucks
Frequently Asked Questions
- Q: Will this fit my 2018 Chevrolet Silverado 2500HD L5P Duramax?
A: Yes fits all 2017-2019 Silverado 2500HD 3500HD and Sierra equivalents with 6.6L L5P engine see full fitment table above - Q: What material is the radiator made from?
A: 100% aluminum construction with TIG-welded joints for maximum strength and corrosion resistance - Q: What warranty comes with this radiator?
A: Mishimoto Lifetime Warranty covers defects in materials and workmanship for as long as you own the vehicle
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Securely boxed 32 x 28 x 6 inches
- Weight: 28.7 lbs product 35 lbs shipped
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