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Your cart is empty. Radiator Details:
Type: 2 Core
Core Thickness: 1.42"
Color: Silver
Core/ Tank Material: All Aluminum
Surface Finish: Aircraft Grade Raw Aluminum
Upgraded Cap: CNC Machined Filler Neck and Cap
Upgraded Drain Plug: OEM Style Brass Petcock Drain
Delivery: Local Delivery
Fitment Type: Direct Replacement
Manufacturer Part Number:
2510,SBR2510,CU2510,DPI2510,2757,KKS2510,TYC2510 SC2510
Compatible with:
2001-2005 Chevy Silverado 2500 HD w/ 6.6L Duramax LB7/LLY
2001-2005 Chevy 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
COOLINGBEST Radiator:
Drop-in installation;
Stability and durability;
High security and performance;
High coolant capacity, Maximum cooling efficiency;
High temperature resistance, no fear of temperature surges
Excellent all aluminum material, Light weight, High thermal conductivity;
About us:
If there is something wrong with your purchase please let us know and we will do all in our power to fix the issue to you. Thank you for your cooperation.
Chuck
Reviewed in the United States on June 26, 2025
Good quality radiator
Customer
Reviewed in the United States on August 14, 2024
I was on the edge of 3 star and 4. Only chose 4 star because it works with no issues or leaks. But the transmission does run a little hotter. Drove it over an hour in +100 weather and drove fine a little over the half point of the gauge but that is still within operating temperature. It would be so easy to have this product as a 5 star review with increasing the diameter of the transmission cooler fittings they are a lot smaller then the stock ones and very restricting.
Ron
Reviewed in the United States on March 11, 2024
Fit well in stock location, The Fan shroud needs a little trimming, Also the stock Transmission Connectors did not fit i had to remove the stock Oring and large fender washer and install a normal O-RingI did notice the hole for the transmission cooler was only 3/8 at best when the line going to it is like 1/2 but figured i would try it any waysDrove unloaded 100-mile test run no transmission temp issues ran cooler than normal by 15-20 degsEngine temps were slightly higher by 5-10 Deg was at 180 now 185-190 with no trailer load but MPG was up by 3-4MPG all i can figure is the stock fan clutch is now disengaged when at freeway speeds.Will load test with Horse trailer next to make sure temp rise isn't issue and fan clutch is the MPG reason.
Sabastian macaluso
Reviewed in the United States on October 12, 2024
The fittings for the transmission lines were not tight and the I rings were almost cut in half. Other than that the actual radiator was good quality
Amanda Dionne
Reviewed in Canada on August 17, 2023
I have had overheating issues with my LLY duramax when towing like every other LLY duramax owner. Not anymore!This radiator is amazing
Todd N. Krise
Reviewed in the United States on August 1, 2023
i got about 2000 miles on this radiator and its being replaced, not due to a leak or anything. its hard to see in the pictures but inside those fittings for the trans cooler, there are 2 small holes (maybe 1/8"). these holes are the only thing letting trans fluid through. i must of had some dirt or something in the system but my trans temps went from fine to overheating in 15 minutes. turns out that tiny little hole got clogged didnt flow any fluid. had to bypass this cooler for a second time and run the front trans cooler to make it home another 100 miles. look at the stock rad or another parts store brand and the holes for the trans fluid are about dime sized, lot harder to clog up. otherwise i had no other issues with this radiator, it did cool well, the oversight on the trans cooler is the reason i'm marking it at 1 star, i do not trust this thing anymore. i did try cleaning out the fittings with brake cleaner and compressed air and there is still something inside i cant get out. i'm putting mine in the recycling bin and getting a stock radiator. buy at your own risk.
Eric
Reviewed in the United States on July 3, 2023
Installed in my 2005 LLY. Everything fit, all lines connected perfectly and stress test after install without a single drip! The packaging was excellent quality as well. Box was damaged during shipping but every fin was still pristine. Very satisfied that I went with you guys!
Brandon Olivo
Reviewed in the United States on June 7, 2023
This product is alot cheaper then the oem radiator, I feel if I can get 3 years out of it. id be content. wanted to get rid of the plastic junk. quality is actually pretty decent, Im a welder for trade and they aren't horrible. Box cam damaged but no damage to rad. So far 2 weeks no leaks.* update March 4 she started leaking I'd like a replacement if possible.
Wendy
Reviewed in the United States on March 7, 2023
Installed this on my 05 LLY Dmax, didn't want to put another plastic tank radiator in my truck. This radiator was priced great and very nice quality. Thanks Erik
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