Is it worth repairing or replacing the engine on a 2018 Chevrolet Impala?

As a general rule of thumb, an engine replacement on a 2018 Chevrolet Impala (mid-size sedan segment, vehicle value roughly $6,235–$7,935) is usually worth it when the installed cost stays under about $3,543 — roughly 50% of what the vehicle is worth.

What years of Chevrolet Impala does an remanufactured or new engine fit?

Based on vendor-verified fitment data across 19 listed engines, remanufactured and new engines for this model cover the 1977–2020 model years. Always confirm your exact VIN or engine/transmission code before ordering, since fitment can vary by submodel or engine.

2018 Chevrolet Impala Engines

Remanufactured engines that fit the 2018 Chevrolet Impala. Each unit below is matched to this vehicle, warranty-backed, and shipped with freight quoted at checkout from Peak Powertrain.

Available Engines (4)

Remanufactured Engine L3612GM
Price
$3,775.00
Condition:
remanufactured
CHEV 3.6 GDI LFX ENGINE
Price
$5,618.26
Engine:
3.6L
Condition:
remanufactured
Used Engine
Price
$657.00
Engine:
3.6L
Mileage:
155,817
Condition:
used
Used Engine

2018 Chevrolet Impala Engines

Available Engines (4)

Remanufactured Engine L3612GM

CHEV 3.6 GDI LFX ENGINE

Used Engine

Used Engine

2018 Chevrolet Impala Engine Market Context

Is replacing the engine worth it?

Frequently Asked Questions

Other Chevrolet Impala Years