Is it worth repairing or replacing the engine on a 2021 GMC Sierra 1500?

As a general rule of thumb, an engine replacement on a 2021 GMC Sierra 1500 (full-size truck segment, vehicle value roughly $17,571–$22,363) is usually worth it when the installed cost stays under about $8,985 — roughly 45% of what the vehicle is worth.

What years of GMC Sierra 1500 does an remanufactured or new engine fit?

Based on vendor-verified fitment data across 56 listed engines, remanufactured and new engines 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.

2021 GMC Sierra 1500 Engines

Remanufactured engines that fit the 2021 GMC Sierra 1500. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from Peak Powertrain.

Available Engines (6)

Remanufactured Engine L5319GMCAL84
Price
$3,975.00
Condition:
remanufactured
Remanufactured Engine L5319GMCAL
Price
$3,975.00
Condition:
remanufactured
GM 5.3 19-21 L82 ENGINE
Price
$6,554.86
Engine:
5.3L
Condition:
remanufactured
CHEV 4.3 LV3 14-21 ENGINE

2021 GMC Sierra 1500 Engines

Available Engines (6)

Remanufactured Engine L5319GMCAL84

Remanufactured Engine L5319GMCAL

GM 5.3 19-21 L82 ENGINE

CHEV 4.3 LV3 14-21 ENGINE

2021 GMC Sierra 1500 Engine Market Context

Is replacing the engine worth it?

Frequently Asked Questions

Used Engine

Used Engine

Other GMC Sierra 1500 Years