2020 GMC Sierra 1500 Transmissions

Used and remanufactured transmissions that fit the 2020 GMC Sierra 1500. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from EP Transmissions.

Available Transmissions (17)

Other GMC Sierra 1500 Years

2020 GMC Sierra 1500 Transmission Market Context

Recent transmission prices for this vehicle

Market range:
$3,973 – $3,973
Median:
$3,973
Sample:
4 recent market listings

Is replacing the transmission worth it?

Vehicle value (full-size truck):
$14,935 – $19,009
Repair makes sense under:
≈$7,637

Rule of thumb: a transmission replacement is usually worth it when the installed cost stays under 45% of what the 2020 GMC Sierra 1500 is worth — most units below beat that comfortably.

Frequently Asked Questions

What's a typical price range for a transmission on a 2020 GMC Sierra 1500?

Based on 4 recent market listings, a transmission for a 2020 GMC Sierra 1500 typically runs $3,973–$3,973, with a median around $3,973.

Is it worth repairing or replacing the transmission on a 2020 GMC Sierra 1500?

As a general rule of thumb, a transmission replacement on a 2020 GMC Sierra 1500 (full-size truck segment, vehicle value roughly $14,935–$19,009) is usually worth it when the installed cost stays under about $7,637 — roughly 45% of what the vehicle is worth.

What years of GMC Sierra 1500 does a remanufactured or new transmission fit?

Based on vendor-verified fitment data across 551 listed transmissions, remanufactured and new transmissions for this model cover the 1999–2026 model years. Always confirm your exact VIN or engine/transmission code before ordering, since fitment can vary by submodel or engine.

Do used transmissions from other models fit a 2020 GMC Sierra 1500?

Yes, for the 2020 GMC Sierra 1500's platform: used transmissions pulled from mechanically-identical sibling models — Chevrolet Tahoe, Chevrolet Suburban, Chevrolet Silverado 1500, GMC Yukon, GMC Yukon XL, Cadillac Escalade, Cadillac Escalade ESV — can interchange, as long as the engine/drivetrain matches. Always verify the exact engine code before buying a used unit from a sibling model.