2020 Used Chevy Suburban-1500 Transmissions For Sale | Auto Power Source

6
verified units in stock
★★★★★
Excellent Customer Reviews
on Trustpilot
3 years
max warranty
Photos before
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2020 Used Chevy Suburban-1500 Transmissions For Sale

Six 2020 Chevy Suburban-1500 transmissions are inventory-verified and on the shelf today — all automatics, split across the 5.3L and the 6.2L in both 4x2 and 4x4. Every unit is VIN-matched to your Suburban, shift-tested by ASE-certified technicians, photographed before shipment, and carries up to a 3-year warranty with 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 Suburban-1500 Transmission Fitments In Stock

All 6 in-stock 2020 Suburban-1500 transmission fitments, one card per build. Every unit is an automatic, and every unit is VIN-matched at the order step — if you are not sure which box your Suburban carries, send us the VIN and we will read it for you.

5.3L — 4x2, tow package (opt NHT)
Pulled from a 4x2 5.3L Suburban built with the tow package. NHT is the code to look for on the RPO sticker.
5.3L — 4x2, without tow package
The same 4x2 5.3L build, minus the tow package. Same engine as the NHT unit above — the package is what separates them.
5.3L — 4x4, tow package (opt NHT)
The four-wheel-drive 5.3L with the tow package fitted.
5.3L — 4x4, without tow package
The four-wheel-drive 5.3L as it left the line without NHT.
6.2L — 4x4
The big-displacement Suburban in four-wheel drive. A lower-volume fitment — text your VIN and we will confirm availability the same day.
6.2L — 4x2
The 6.2L in two-wheel drive. Also low-volume; the VIN is the fastest way to lock it down.

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

Why Buy a 2020 Chevy Suburban-1500 Transmission from Auto Power Source

Every transmission on this page was pulled from a low-mileage 2020 Suburban-1500 donor, logged against that truck's VIN the day it came through the door, and stored in a climate-controlled warehouse rather than a gravel lot. None of them has been rebuilt or reshelled. Before a unit is cleared for sale, our ASE-certified technicians run it through its full gear range and put it on the road under load.

What catches people out on the Suburban is not the engine — it is the tow package. Two 5.3L trucks can sit side by side, same displacement, same drivetrain, and take different boxes because one was ordered with NHT and the other was not. Displacement alone will not tell you which one is parked in your driveway, and neither will a look under the hood. Text your VIN and we will settle it before you spend a dollar.

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

Your 2020 Suburban-1500 Transmission Options: Compared

When the transmission goes on a 2020 Suburban-1500, there are four ways out. Here is the honest comparison:

← 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 is where the value sits — the same Chevy unit the truck was assembled with, without the dealer's new-part markup.

2020 Suburban-1500 Transmission Buying Guide

  1. Confirm the displacement first. We stock the 5.3L and the 6.2L for this truck. It is the quickest way to halve the list, though on the 5.3L it is only the first question of two.
  2. Then check the tow package. Look for opt NHT on the RPO sticker in the glovebox. On a 5.3L Suburban this is the fitment question that actually decides which unit ships.
  3. Say 4x2 or 4x4 up front. The two builds differ at the tailhousing and the transfer-case interface, so a 4x4 box will not drop into a 4x2 truck.
  4. Do not order off the badge alone. Trim badging does not track the tow package, and a Suburban that tows today may not have left the factory equipped for it.
  5. Ask us for the donor VIN. We release it on request for any Suburban-1500 transmission in stock, so you can verify mileage and history for yourself.

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

📞 Not sure whether your Suburban has the tow package? Talk to our team live, 24h Mon-Sat.Call 1-877-313-8995

Frequently Asked Questions

What is the warranty on a 2020 Suburban-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 Suburban-1500, effectively yes. That engine was sold both with the tow package (opt NHT) and without it, in 4x2 and 4x4 — four combinations your VIN resolves 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 Suburban — 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

No 2020 Suburban-1500 transmission reaches a pallet until it has cleared all six of these:

1. VIN-Matching
We read your VIN against the donor's to settle the displacement, the 4x2 / 4x4 build and whether the truck left the line with the tow package.
2. Tested & Verified
ASE-certified technicians shift-test each unit through its full gear range and watch for slip, flare and harsh engagement.
3. Shift & Road Verification
Driven under load, not idled on a bench — a tired converter or a lazy upshift only shows itself with weight behind it.
4. Visual Inspection
Case, bellhousing, pan, cooler lines, harness connectors and mounting points all go under the light.
5. Photograph & Catalog
Multi-angle photos land in your inbox BEFORE the freight is booked. Your approval moves the pallet, nothing else.
6. Palletize & Ship
Strapped to a heavy-duty wooden pallet and freighted to your door 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 Suburban-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 →