[Vehicle Fitment] OEM Part Numbers: CR13399, 13399, 25838892, 23172440; For 2011-2016 For Chevrolet Silverado 2500HD 3500HD 6.6L Duramax LML; 2011-2016 For GMC Sierra 2500HD 3500HD 6.6L Duramax LML; [Specification] Core Diameter: 27-7/8'' x 33-3/8"; Inlet Diameter: 1-7/8"; Outlet Diameter: 2"; Automatic Transmission Cooler: With Transmission Cooler; [All Aluminum Radiator] Made from Aircraft AA5052 grade aluminum for prolonged lifespanand with raw aluminum finish. Full aluminum tanks and fittings [Density Core] Cooling rows are spaced 3/8" apart, giving you 25% more rows within the core than other aluminum radiators sold on Amazon. 14-16 cooling fins per inch, giving you approximately 1500 more cooling fins than other aluminum radiators. It provides 30% more cooling capacity than a standard radiator. [No Leaking Worries] All radiator have to go through 5 checks in the whole process.100% leaking and pressure tested. Thickened packing(either carton or wooden box), foam with shock absorption.

OE/OEM Part Number: CR13399, 13399, 25838892, 23172440

FITMENT:

2011-2016 For Chevrolet Silverado 2500HD 6.6L Duramax LML

2011-2016 For Chevrolet Silverado 3500HD 6.6L Duramax LML

2011-2016 For GMC Sierra 2500HD 6.6L Duramax LML

2011-2016 For GMC Sierra 3500HD 6.6L Duramax LML

Application Models：

2016 Chevrolet Silverado 2500 HD 6.6L DURAMAX LML Engine

2016 Chevrolet Silverado 3500 HD 6.6L DURAMAX LML Engine

2015 Chevrolet Silverado 2500 HD 6.6L DURAMAX LML Engine

2015 Chevrolet Silverado 3500 HD 6.6L DURAMAX LML Engine

2014 Chevrolet Silverado 2500 HD 6.6L DURAMAX LML Engine

2014 Chevrolet Silverado 3500 HD 6.6L DURAMAX LML Engine

2013 Chevrolet Silverado 2500 HD 6.6L DURAMAX LML Engine

2013 Chevrolet Silverado 3500 HD 6.6L DURAMAX LML Engine

2012 Chevrolet Silverado 2500 HD 6.6L DURAMAX LML Engine

2012 Chevrolet Silverado 3500 HD 6.6L DURAMAX LML Engine

2011 Chevrolet Silverado 2500 HD 6.6L DURAMAX LML Engine

2011 Chevrolet Silverado 3500 HD 6.6L DURAMAX LML Engine

2016 GMC Sierra 2500 HD 6.6L DURAMAX LML Engine

2016 GMC Sierra 3500 HD 6.6L DURAMAX LML Engine

2015 GMC Sierra 2500 HD 6.6L DURAMAX LML Engine

2015 GMC Sierra 3500 HD 6.6L DURAMAX LML Engine

2014 GMC Sierra 2500 HD 6.6L DURAMAX LML Engine

2014 GMC Sierra 3500 HD 6.6L DURAMAX LML Engine

2013 GMC Sierra 2500 HD 6.6L DURAMAX LML Engine

2013 GMC Sierra 3500 HD 6.6L DURAMAX LML Engine

2012 GMC Sierra 2500 HD 6.6L DURAMAX LML Engine

2012 GMC Sierra 3500 HD 6.6L DURAMAX LML Engine

2011 GMC Sierra 2500 HD 6.6L DURAMAX LML Engine

2011 GMC Sierra 3500 HD 6.6L DURAMAX LML Engine

Specifications:

High Performance Racing Spec.

2 Row of tubes Core Racing Design

Core Material: Aluminum

Tank Material: Plastic

Core Diameter: 27-7/8'' x 33-3/8"

Inlet Diameter: 1-7/8"

Outlet Diameter: 2"

Automatic Transmission Cooler: With Transmission Cooler

Engine Oil Cooler: Without Engine Oil Cooler

Please Check the Picture and Size Before You Buy!

Mounting Style: Bolt-On

Radiator style: Crossflow

Fit type: Vehicle Specific

Crafts: 100% Tig welded

Delivery: Local Delivery

Fitment Type: Direct Replacement

Performance: Up to 30%~45% more cooling

Placement on Vehicle: Engine Compartment

Surface Finish: Aircraft Grade Raw Aluminum

Petock Drain: OEM style brass petcock drain

Gentle Hint:

Parameters Meticulous Prior to Ordering.

Pls compare the overall width with your original radiator.

Warranty: 1 Year Warranty against manufacture defect and damage in transit.

Professional installation is highly recommended! No Fitting Instructions Supplied!

Please contact us for installation video or other any problem.