6
verified units in stock
2020 Used Chevy Tahoe Transmissions For Sale
6 verified 2020 Chevy Tahoe transmissions in stock — the 10-speed automatic (opt MF6) and the 6-speed automatic (opt MYC), each in 4x2 and 4x4, with and without the NHT tow package. Every 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.
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Shift-Tested & Verified
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Free Nationwide Shipping
2020 Tahoe Transmission Options In Stock
All 6 in-stock 2020 Tahoe transmission fitments, grouped by option code. Every unit is an automatic, and every unit is VIN-matched at the order step — text us your VIN if you are unsure which code your truck carries.
Looking for a different part for the same truck? 2020 Chevy Tahoe engines are stocked separately, or step back up to all 2020 Chevy transmissions.
Why Buy a 2020 Chevy Tahoe Transmission from Auto Power Source
Inventory-verified is the whole point here: every 2020 Tahoe transmission on this page came out of a low-mileage donor truck, was cataloged against that truck's VIN, and sits in our climate-controlled warehouse until it sells. Our ASE-certified technicians shift-test each unit through the full gear range and check for slip, flare and harsh engagement before it is cleared for sale.
The 2020 Tahoe is the case where a guess gets expensive. Two different automatics were fitted — the 6-speed (opt MYC) and the 10-speed (opt MF6) — and the MYC trucks split again on whether the NHT tow package was ordered. Those are not interchangeable, and the option code is the fitment, not the model year. Text your VIN and we will confirm the exact code before you order.
📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →
Your 2020 Tahoe Transmission Options: Compared
When a 2020 Tahoe transmission lets go, there are four realistic ways to replace it:
← Swipe sideways to see all columns →
| 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 |
None |
DIY |
Tested used OEM hits the sweet spot — the same Chevy unit your truck left the factory with, at a fraction of dealer cost.
2020 Tahoe Transmission Buying Guide
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Read the option code before anything else. The 2020 Tahoe ships with either opt MYC (6-speed) or opt MF6 (10-speed). The code, not the year, decides the fitment.
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Count the gears you actually have. A 6-speed and a 10-speed are different transmissions — swapping one for the other is not a bolt-in job.
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Check for the NHT tow package. On MYC trucks we stock tow and non-tow builds separately; NHT changes the cooling and duty spec.
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Specify 4x2 or 4x4. The two-wheel and four-wheel-drive builds differ at the tailhousing and transfer-case interface.
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Ask for the donor VIN. We provide it on request for any Tahoe transmission in inventory so you can check mileage and history yourself.
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 Tahoe transmission?
Up to 3 years, depending on the specific unit. The exact term is listed on each product page.
What does shift-tested mean?
ASE-certified technicians run each unit through every gear under load and check for slip, flare and harsh engagement before it is cleared for sale.
How long until delivery?
Prep and ship time is 3-5 business days. Transit time is 2-3 business days via freight carrier after dispatch.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit are sent before payment.
Do I need my VIN?
Strongly recommended. The 2020 Tahoe carries either a 6-speed (opt MYC) or a 10-speed (opt MF6), in 4x2 or 4x4, with or without the NHT tow package.
What if I do not approve the photos?
Every dollar back — no restocking fees, no return freight charges.
Why is this cheaper than a dealer replacement?
It is used OEM from a low-mileage donor truck — the same Chevy engineering, without the new-part markup.
When can I reach customer service?
24 hours a day, Monday through Saturday.
46,000+
engines + transmissions shipped
0%
fitment-related returns
All 50
states covered, free freight
Excellent
Customer Reviews
rated on Trustpilot
Our 6-Step Inspection & Shipping Process
Every 2020 Tahoe transmission we ship has been through these six steps:
1. VIN-MatchingWe match the donor VIN to yours to confirm the transmission option code and 4x2 / 4x4 layout.
2. Tested & VerifiedASE-certified technicians shift-test each unit through every gear and check for slip and flare.
3. Shift & Road VerificationRun under load to confirm clean engagement and shift timing — catches wear a static test misses.
4. Visual InspectionCase, bellhousing, pan, cooler lines, harness connectors and mounting points all inspected.
5. Photograph & CatalogMulti-angle photos sent to you BEFORE we ship, for your approval.
6. Palletize & ShipStrapped on a heavy-duty wooden pallet, shipped via freight at no charge.
What Our Customers Say
Rated Excellent by our customers on Trustpilot.
★★★★★
Transaction was perfect
"Found me the right engine at a great price. Got it in 2 days and installed the car the next day. Runs absolutely beautiful."
— Kevin Graham, 2026-04-29
★★★★★
Repeat customer
"AutoPowerSource is a great company. I've used them several times for used motors. Low mileage when other companies gave up."
— Curtis Haines, 2025-12-23
★★★★★
Highly recommend Mike
"Mike reached out first thing in the morning regarding my inquiry for a used engine. Very informative and helpful."
— Beatrice, 2026-03-31
★★★★★
Great experience
"Daisy kept me in the loop every step. My original engine was damaged before shipping; she found a different one quickly."
— Bryan Perkins, 2026-03-25
Our Photos-Before-Shipment Guarantee
Before any 2020 Tahoe 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
