The 2016–2018 Cadillac ATS 3.6L LGX engine for sale with 58,145 miles is a low-mileage OEM V6 designed to restore smooth performance and responsive power. Removed from a well-maintained vehicle, this engine is built for RWD ATS models requiring VIN S (8th digit, LGX option) fitment.

Compatible with 2016 Cadillac ATS engine, 2017 Cadillac ATS engine, and 2018 Cadillac ATS engine applications when the LGX engine code matches. This engine is commonly used for ATS replacements where factory fitment and consistent performance are important.

Each used Cadillac engine is inspected for compression and checked for leaks to ensure proper internal condition before shipping. It runs smoothly, delivers steady power, and maintains reliable performance under normal driving conditions.

A-grade certified and backed by a 6-month warranty, this engine offers a dependable solution for replacing your Cadillac ATS engine.

Key Features:

Brand: Cadillac
Engine Size: 3.6L (VIN S, 8th digit, LGX option) for RWD
Mileage: 58,145 miles
Interchange: 300-05171A
Part Grade: A (Certified)
Part Category: U (Used)
Performance: Built for reliable power and optimized fuel efficiency
Warranty: Includes a 6-month warranty
Shipping: Fast and secure freight delivery available. Residential and commercial delivery options with liftgate service

2016 2017 2018 Cadillac ATS 3.6L LGX Engine For Sale

Name: 2016 2017 2018 Cadillac ATS 3.6L LGX Engine For Sale
SKU: BPA-ENGINE-2610D

SKU: BPA-ENGINE-2610D

$3,162.00

Only 1 left in stock

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This fully assembled long block includes all the essential components you need for installation, such as:

Complete Engine Assembly

Intake Manifold

Exhaust Manifold

Fuel Injectors

Throttle Body

Alternator

Power Steering Pump

Water Pump

A/C Compressor

Engine Wiring Harness
When you're buying an engine, you want something that's tested, reliable, and ready to go. That's what you're getting here:

Fully Tested: Every engine we sell has been compression-tested, checked for oil pressure, and run at operating temperature to ensure you won’t encounter any surprises after installation.

Complete Package: It’s a long block, which means all the core components are included. No hunting around for separate parts.

OEM Quality: This isn’t a rebuild or aftermarket part. It’s an OEM engine, so you can trust it will fit and perform just like the original.
Shipping can be arranged to either a business or residential address. If you’re having the engine shipped to a residential location, just note that there may be an extra charge. Once it arrives, we recommend inspecting the shipment thoroughly before signing off, especially if there's visible damage. If anything looks out of place, make sure it’s documented.
When it comes to installation, you may need to transfer over some of your existing accessories like the manifolds.

This is standard with most engine swaps, so your mechanic will know what to do.
For any questions regarding compatibility or shipping details, please feel free to reach out! Ensure this engine fits your vehicle by verifying the VIN and specific requirements before purchase

This image is provided solely for reference to indicate the applicable engine type and compatibility. The engine supplied may not be the exact unit shown and may exhibit variations in external appearance; however, it will be equivalent in specification, functionality, and fitment, in accordance with the agreed technical standards