Collection: 2020 Used Chevy Impala Transmissions For Sale | Auto Power Source
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2020 Used Chevy Impala Transmissions For Sale
2 verified 2020 Chevy Impala transmissions in stock — one matched to the Impala itself and one cross-referenced to the Cadillac XTS, which shares the same GM transmission application. Each unit is VIN-matched to your vehicle, shift-tested by ASE-certified technicians, photographed before shipment, and backed by up to a 3-year warranty plus 30-day money-back. Free freight nationwide.
2020 Impala Transmission Options In Stock
Both in-stock 2020 Impala transmission fitments, listed by the vehicle each was cataloged against. Every unit is VIN-matched at the order step — text us your VIN if you are unsure which applies.
Why Buy a 2020 Chevy Impala Transmission from Auto Power Source
Every 2020 Impala transmission we ship is pulled from a low-mileage donor vehicle, cataloged by VIN, and held in our climate-controlled warehouse pending sale. Our ASE-certified technicians bench-test each unit and verify shift quality through the gear range before it is cleared for sale.
The 2020 Impala shares its transmission application with the Cadillac XTS, so a correctly cross-referenced unit can fit either car — but the code still has to match your VIN. Text your VIN and we will confirm the exact match before you order.
Your 2020 Impala Transmission Options: Compared
Most 2020 Impala owners face four real choices when their transmission fails:
| Option | Cost | Reliability | Warranty | Fitment Match |
|---|---|---|---|---|
| Used OEM (this collection) | $$$ Best Value | High | Up to 3 years | VIN-matched |
| New OEM (dealer) | $$$$$ 2-4× more | High | Manufacturer | Exact |
| Aftermarket / Reman | $$$$ | Varies | 6-12 mo | May adapt |
| Junkyard | $ Cheapest | Unknown | DIY |
Tested used OEM hits the sweet spot — same GM engineering as new, at a fraction of the cost.
2020 Chevy Impala Transmission Buying Guide
- Confirm the transmission code by VIN 8th digit. The 2020 Impala's automatic is keyed to the VIN; the 8th digit pins down the correct code for your car.
- Check the cross-reference vehicle. One in-stock unit is cross-referenced to the Cadillac XTS. Both share the GM application, but the code must still match your VIN.
- Confirm drivetrain and mounting. Bracketry, harness routing and mounting points can differ across trims — verify before installing.
- Ask about the torque converter and cooler lines. Our technicians inspect the converter and cooler-line fittings on every unit; confirm condition before you order.
- Always run the donor VIN if available. We provide the donor VIN on request for any Impala transmission in inventory to verify mileage and history.
Our ASE-certified technicians verify every one of these points against your VIN before any transmission ships.
Frequently Asked Questions
What is the warranty on a 2020 Impala transmission?
What does shift-tested mean?
How long until delivery?
Can I see photos before I buy?
Do I need my VIN?
What if I do not approve the photos?
Customer Reviews
Our 6-Step Inspection & Shipping Process
Every 2020 Impala transmission we ship has been through these six steps:
What Our Customers Say
Rated Excellent by our customers on Trustpilot.
Our Photos-Before-Shipment Guarantee
Before any 2020 Impala transmission leaves our warehouse, we send you multi-angle photographs. You approve. If you do not approve, you get every dollar back — no questions, no restocking fees, no return freight charges. On top of 30-day money-back and up to a 3-year warranty.
✉ Email Us at info@autopowersource.com