Review on ACDelco 21653 Original Equipment Radiator by Paul Stocks

I highly recommend this radiator. I installed it myself on my 2003 GMC Sierra 2500 HD 6.0 truck. This took about 3 hours and saved me a lot of money. I would advise you to go to You Tube and watch some installation videos before undertaking this task. You also need to make sure your oil cooler connections are secure or you will make a mess and lose oil if the connections are not secure. I would highly recommend this radiator to other more expensive aluminum radiators. It would also be a good idea to swap out the upper and lower radiator hoses during this time. This is a smart move. I live in Arizona and we're having a brutal summer here and our radiators are banging here. You can't go wrong with this product and as always, Revain has got me hooked.