2020 Used Chevy Silverado 1500 Transmissions For Sale | Auto Power Source

11
verified units in stock
★★★★★
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3 years
max warranty
Photos before
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2020 Used Chevy Silverado 1500 Transmissions For Sale

Eleven verified 2020 Chevy Silverado 1500 transmissions are on the shelf right now — every one an automatic, spanning five displacements from the 2.7L to the 6.2L, in 4x2 and 4x4. Each unit is VIN-matched to your truck, 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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Up to 3-Year Warranty
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Photos Before Shipment
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Shift-Tested & Verified
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Free Nationwide Shipping
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30-Day Money-Back
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Secure SSL Checkout

2020 Silverado 1500 Transmission Fitments In Stock

All 11 in-stock 2020 Silverado 1500 transmission fitments, grouped by the engine they were built behind. Every unit is an automatic, and every unit is VIN-matched at the order step — text us your VIN if you are not certain which build your truck carries.

5.3L — 6-speed (opt MYC)
The 6-speed automatic behind the 5.3L, stocked in both 4x2 and 4x4. Option code MYC on the RPO sticker.
5.3L — 8-speed (opt MQE)
The 8-speed automatic behind the same 5.3L, in 4x2 and 4x4. Same engine, different gearbox — the code is what separates them.
5.3L — 10-speed (opt MQB)
The 10-speed automatic behind the 5.3L, stocked in 4x4. Look for option code MQB.
4.3L
Transmissions pulled from 4.3L trucks, held in both 4x2 and 4x4 builds.
2.7L
The 2.7L fitment, stocked in 4x2 and 4x4.
6.2L and 3.0L
The 6.2L and the 3.0L each in 4x4. Low-volume fitments — text your VIN and we will confirm availability the same day.

Need a different part for the same truck? 2020 Chevy Silverado 1500 engines are stocked separately, or step back up to all 2020 Chevy transmissions.

Why Buy a 2020 Chevy Silverado 1500 Transmission from Auto Power Source

Donor-pulled, never rebuilt: each transmission on this page came out of a low-mileage 2020 Silverado 1500, was logged against that truck's VIN the day it arrived, and has sat in a climate-controlled warehouse ever since. Before any of them is cleared for sale, our ASE-certified technicians run the full gear range and watch for slip, flare and harsh engagement.

The 1500 is the trickiest Silverado to order for, and the reason is the 5.3L. That one engine left the factory behind three different automatics — a 6-speed (opt MYC), an 8-speed (opt MQE) and a 10-speed (opt MQB) — so knowing your displacement gets you a third of the way there and no further. Add the 4x2 / 4x4 split and the guess gets expensive. Text your VIN and we will read the code off it for you before you commit.

📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →

Your 2020 Silverado 1500 Transmission Options: Compared

A failed 2020 Silverado 1500 transmission leaves you with four realistic routes. Here is how they stack up:

← 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 lands in the sweet spot — the same Chevy unit your truck was built with, without the dealer markup.

2020 Silverado 1500 Transmission Buying Guide

  1. Start with the displacement, but do not stop there. We stock the 2.7L, 3.0L, 4.3L, 5.3L and 6.2L. It narrows the field — on the 5.3L it does not close it.
  2. Pull the option code off the RPO sticker. MYC is the 6-speed, MQE the 8-speed, MQB the 10-speed. On a 5.3L truck this is the fitment, full stop.
  3. Count your gears if the sticker is gone. Six, eight and ten-speed units are not interchangeable and will not swap in on the strength of a matching engine.
  4. Say 4x2 or 4x4 up front. The two builds part company at the tailhousing and the transfer-case interface.
  5. Ask us for the donor VIN. We hand it over on request for any Silverado 1500 transmission in stock, so you can check the mileage and history yourself.

Our ASE-certified technicians verify every one of these points against your VIN before any transmission ships.

📞 Not sure whether you have MYC, MQE or MQB? Talk to our team live, 24h Mon-Sat.Call 1-877-313-8995

Frequently Asked Questions

What is the warranty on a 2020 Silverado 1500 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?
For a 5.3L Silverado 1500, effectively yes — that engine ran with a 6-speed (opt MYC), an 8-speed (opt MQE) or a 10-speed (opt MQB), in 4x2 or 4x4. The VIN settles it in one step.
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 out of a low-mileage donor truck — the same Chevy engineering, minus 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

Six steps stand between our yard and your driveway. Every 2020 Silverado 1500 transmission clears all of them:

1. VIN-Matching
Your VIN against the donor's — it settles the displacement, the option code and the 4x2 / 4x4 build in one step.
2. Tested & Verified
ASE-certified technicians shift-test the unit through its full gear range — six, eight or ten, whichever it was built with.
3. Shift & Road Verification
Loaded and driven, because slip and flare hide from a bench test and show up under throttle.
4. Visual Inspection
Case, bellhousing, pan, cooler lines, harness connectors and mounting points all inspected.
5. Photograph & Catalog
Multi-angle photos reach you BEFORE the pallet moves. Nothing ships without your approval.
6. Palletize & Ship
Strapped to a heavy-duty wooden pallet and freighted to you 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 Silverado 1500 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
No match? Text VIN →