Option: (AT, 6.6L), gasoline, 4x4
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This used 2020 GMC Sierra 2500 6.6L transmission is a grade B replacement from a donor GMC Sierra 2500 built for 2020, with about 32,235 - 37,070 mi on the donor vehicle. The listed option is (AT, 6.6L), gasoline, 4x4. Use that 6.6L size and the option code with the VIN so the transmission matches the sensors, wiring, and computer in the vehicle. This unit is priced at $4,358 and is offered in stock for shipping. State Auto Parts inspects used GMC Sierra 2500 transmissions and grades each one before it is listed. Free shipping is available to commercial addresses in the lower 48 states, and residential delivery can be arranged.
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Excellent quality! The engine has been running smoothly for months now. Very impressed with State Auto Parts and would recommend to anyone.
Incredible value! The engine runs like new and installation was straightforward. Customer service answered all my questions promptly.
Appreciate the honest grading on the differential I bought. It runs great, I just wish the install kit was bundled automatically.