Welcome to the Certified Transmission Hummer page of our website. Certified Transmission offers 4L60E, 4L65E, and 6L80 remanufactured Hummer H2 and H3 transmissions for sale. Each transmission is remanufactured to factory like condition using only the best OEM parts available to ensure you get the same performance from your Hummer H2 or H3 as when it rolled off the dealership’s showroom floor.
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