2018 GMC Sierra Denali Transmissions

Used and remanufactured transmissions that fit the 2018 GMC Sierra Denali. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from Ironclad.

Available Transmissions (2)

Used Transmission
Price
$2,569.00
Engine:
6.2L
Mileage:
144,000
Condition:
used
Used Transmission
Price
$4,386.00
Engine:
5.3L
Mileage:
81,001
Condition:
used

Other GMC Sierra Denali Years

2018 GMC Sierra Denali Transmission Market Context

Is replacing the transmission worth it?

Vehicle value (full-size truck):: $10,791 – $13,733
Repair makes sense under:: ≈$5,518

Rule of thumb: a transmission replacement is usually worth it when the installed cost stays under 45% of what the 2018 GMC Sierra Denali is worth — most units below beat that comfortably.

Frequently Asked Questions

Is it worth repairing or replacing the transmission on a 2018 GMC Sierra Denali?

As a general rule of thumb, a transmission replacement on a 2018 GMC Sierra Denali (full-size truck segment, vehicle value roughly $10,791–$13,733) is usually worth it when the installed cost stays under about $5,518 — roughly 45% of what the vehicle is worth.