This used engine is listed for 2017-2020 GMC Acadia vehicles with the 3.6L V6, code LGX. Every order is matched to your VIN before payment, inspected at the warehouse and shipped by freight to your home or repair shop.
Specifications
| Condition | Used OEM (original equipment) |
|---|---|
| Part type | Engine |
| Fits | 2017-2020 GMC Acadia |
| Model years | 2017, 2018, 2019, 2020 |
| Engine / configuration | 3.6L V6 |
| Engine code | LGX |
| SKU | HAP-ENG-025 |
| Fitment check | VIN and code match confirmed before you pay |
| Inspection | Checked at the warehouse before dispatch |
| Warranty | Stated on your written quote |
| Shipping | Freight delivery to business or residential addresses in the US |
About the GMC Acadia LGX
The second-generation Acadia offers the 3.6L LGX V6 as its upgrade engine. It features direct injection, cylinder deactivation and stop-start.
Fitment notes
Base models use a 2.5L four-cylinder. Confirm your Acadia is a V6. The listing covers the 2017-2020 model years, but options such as drivetrain, emissions package and trim can change the correct part within a single year. That is why we confirm every order with your VIN and the engine code before you pay.
- Share your 17-character VIN with your quote request.
- If possible, send a photo of the engine code on the block or the emissions label.
What is included
Used engines are typically sold as a long block or as a complete assembly with the intake and some accessories. Your quote states exactly what is attached, such as the intake manifold, exhaust manifolds, sensors, alternator or starter, so you know what to transfer from your old engine.
Before you install
Before installation, replace the oil and filter, coolant, spark plugs and thermostat, and inspect the radiator and cooling fans. Prime the oil system before first start and check for leaks during the first run.
Warranty, shipping and payment
Your written quote lists the warranty for this part, the delivery method and both payment stages. The first stage covers verification and freight coordination. The second stage covers the part and is due only after it passes warehouse inspection. Read more about our warranty, shipping and payment process.
Questions About This Engine
Will this engine fit my GMC Acadia?
It is listed for 2017-2020 GMC Acadia models with the 3.6L V6. Base models use a 2.5L four-cylinder. Confirm your Acadia is a V6. Send your VIN and we confirm the exact match before you approve the quote.
What is included with this used engine?
Used engines are typically sold as a long block or as a complete assembly with the intake and some accessories. Your quote states exactly what is attached, such as the intake manifold, exhaust manifolds, sensors, alternator or starter, so you know what to transfer from your old engine.
What should be done before installing it?
Before installation, replace the oil and filter, coolant, spark plugs and thermostat, and inspect the radiator and cooling fans. Prime the oil system before first start and check for leaks during the first run.
Where do I find the engine code on my GMC Acadia?
The 8th character of your 17-character VIN identifies the engine on most US vehicles. The engine code is also stamped on the block and printed on the emissions label under the hood. Send us your VIN and we decode it for you.
Last reviewed: November 9, 2026 by the Hollander Auto Parts parts team
