Core Size : 37.32" H x 19.61" W x 2.44" T ; Overall Size : 44.41" H x 21.83" W ; Inlet/Outlet : 1.77"/1.77" OEM Style Brass Petcock Drain ; Full aviation-aluminum craftsmanship, 100% welded by TIG All-aluminum design with durable TIG-welded construction (T-5057 aircraft aluminum) Easy To Install: Light weight direct bolt-on replacement, stronger & higher capacity for coolant 12 Months warranty ; If you have any questions, please feel free to contact us, we will solve it for you Fitment: For Chevy C4500 Kodiak 6.6L V8 DIESEL 2003-2009 For Chevy C4500 Kodiak 8.1L V8 GAS 2003-2009 For Chevy C5500 Kodiak 6.6L V8 DIESEL 2003-2009 For Chevy C5500 Kodiak 8.1L V8 GAS 2003-2009 For Chevy C6500 Kodiak 8.1L V8 GAS 2003-2007 For GMC C4500 Topkick 6.6L V8 DIESEL 2003-2009 For GMC C4500 Topkick 8.1L V8 GAS 2003-2009 For GMC C5500 Topkick 6.6L V8 DIESEL 2003-2009 For GMC C5500 Topkick 8.1L V8 GAS 2003-2009 For GMC C6500 Topkick 8.1L V8 GAS 2003-2007 For Isuzu HTR 7.8L l6 DIESEL 2005-2008 Radiator Details: Rows : 4 Rows Material : All Aluminum, Aircraft 5057 grade aluminum Oil Cooler ： Yes Features: 100% Leak Tested, Crossflow Radiator, Durability Tested, No Drilling or Modifications Needed for Installation Placement on Vehicle: Engine Compartment Mounting Style: Bolt-On Part Number: GMC33PA, 15797461, 15170906, 1525891, 239023A, 4HE-1-XSA, 21693A,150113551 19130050 1579463 15013568, 206003A, 2206-003A 15797461, 15170906, 15258917 Description: PERFORMANCE : up to 30%-45% cooling HIGH COOLANT CAPACITY ：much higher capacity for coolant than stock ones OE STANDARDS : exceptional OE standards for precise fit ,Direct Replacement HIGH QUALITY, STRICT INSPECTION ：All our products are 100% fully tested to ensure top quality Full set in box and 100% brand new About Us: If you have any questions, please feel free to contact us, we will solve it for you