We're offering a premium 4.2L twin-turbo V8 LTA engine sourced from 2019–2020 Cadillac CT6 models. Known for its high-output design and smooth luxury performance, this powerplant is ideal for performance enthusiasts and OEM replacement needs.

Verified Mileage – Approximately 40,874 miles, showcasing light use and strong longevity potential.
OEM Testing Standards – Passed compression and leak-down tests confirming factory-grade integrity.
Accident-Free Donor Vehicle – Engine pulled from a vehicle with no front-end or engine compartment damage.
Warehouse Protected – Securely mounted on a pallet and stored indoors to maintain condition.
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., 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

Name: 2019 2020 Cadillac CT6 4.2L VIN J 8th Digit opt LTA Engine For Sale
SKU: USED-ENG-1686

SKU: USED-ENG-1686

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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.

1-Year Warranty: You get peace of mind with a full 1-year manufacturer warranty, so if there’s any issue with the engine, you’re covered.

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

Product images shown are for reference only. The actual used parts shipped will match the listed specifications, but may vary in appearance due to warehouse inventory, prior use, or removed components. All engines are tested and verified to meet the described fitment and mechanical standards.