2001-2007 Chevy/GM Duramax Allison 1000 series Upgraded Transmission Cooler
Lower your transmission operating temperatures with this bolt in replacement. This easy installation only takes about 30 minutes.
60% increase in heat rejection surface lowers temperatures 20 to 30 degrees. Everything you need is included! Core dimensions: 14 3/16 width, 7 9/16 length, 2" thick.
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