2019–2020 Cadillac CT6 4.2L twin-turbo V8 LTA engine for sale, tested and inspected to meet quality standards and ready for installation. This used OEM engine is removed from a donor vehicle and offered as a direct replacement for CT6 models requiring VIN J (8th digit) fitment.

Compatible with the 2019 Cadillac CT6 engine and 2020 Cadillac CT6 engine applications when the LTA engine code and VIN match. Commonly searched as a CT6-V engine or GM 4.2 V8 engine, this unit is used as a replacement motor for vehicles needing a reliable OEM twin-turbo V8.

Each engine is compression tested and inspected before shipping to ensure proper operation and internal condition. VIN verification is recommended before purchase.

Verified Mileage—Approximately 40,874 miles, reflecting light usage and a strong remaining lifespan.
OEM Testing Standards – Tested and inspected to meet quality standards, including compression and leak-down testing for internal integrity.
Accident-Free Donor Vehicle—Removed from a CT6 with no front-end or engine compartment damage.
Warehouse Protected—Stored indoors on secured pallet systems to preserve condition before shipping.
Complete Engine Package—Includes long block, turbos, manifolds, and sensors as equipped at removal.
6-Month Parts Warranty – Basic warranty included, with options to extend coverage.
Nationwide Shipping – Fast, secure delivery anywhere in the U.S. and ready for installation.

Explore our growing selection of used Cadillac engines to find reliable OEM-grade components with proven performance.

Engine Specifications:

Make: Cadillac
Model: CT6
Years: 2019, 2020
Engine: 4.2L Twin Turbo V8—LTA
VIN Code: J (8th Digit)
Mileage: 40,874 miles
Part Number: 300-10832
Condition: Used—Thoroughly tested for quality assurance
Warranty: Comes with a 6-month parts-only warranty, with the option to extend coverage up to 12 months.
Shipping: Fast and secure freight delivery available. Residential and commercial delivery options with liftgate service.

2019 2020 Cadillac CT6 4.2L VIN J 8th Digit opt LTA Engine For Sale

SKU: BPA-ENGINE-2602D

$14,475.00

$13,027.50

Only 1 left in stock

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CT6 19-20 4.2L (VIN J, 8th digit, opt LTA)
Engine Block

Cylinder Heads

Turbochargers

Fuel System (Rails & Injectors)

Timing Components

Oil Pan
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 I sell has been compression tested, checked for oil pressure, and run at operating temperature to ensure you won’t run into 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’ll 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. All engines are tested and verified to meet the described fitment and mechanical standards.

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OEM Used Engines

Related Products

How are the engines tested before being sold?

Each engine undergoes rigorous testing, including visual inspections, compression tests, and oil leak tests, to ensure that they meet OEM standards for performance and durability.

Can you ship to any location in the USA?

Yes, we have a nationwide network, allowing us to ship used Land Rover engines to any location across the United States, including major cities like Los Angeles, New York, and Chicago.

What maintenance should I expect after installing a used engine?

Replacement guidance suggests adding or upgrading external parts: Water pump Oil pump (often upgraded aftermarket like Dorman) Gaskets and hoses Electrical compatibility checks with ECM Plan an additional budget for these parts during engine installation.

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2019 2020 Cadillac CT6 4.2L VIN J 8th Digit opt LTA Engine For Sale

Interchangeable Fitment

This Engine Assembly Includes:

Warranty Information

Shipping Information

Important Notes:

Ordering used parts can be tricky
and we want to save you the hassle of getting the wrong one.

OEM Used Engines

Related Products

How are the engines tested before being sold?

Can you ship to any location in the USA?

What maintenance should I expect after installing a used engine?

2019 2020 Cadillac CT6 4.2L VIN J 8th Digit opt LTA Engine For Sale

Interchangeable Fitment

This Engine Assembly Includes:

Warranty Information

Shipping Information

Important Notes:

Ordering used parts can be tricky and we want to save you the hassle of getting the wrong one.

OEM Used Engines

Related Products

How are the engines tested before being sold?

Can you ship to any location in the USA?

What maintenance should I expect after installing a used engine?

Ordering used parts can be tricky
and we want to save you the hassle of getting the wrong one.