2012 Used Chevy Transmissions For Sale | Auto Power Source

111
verified 2012 Chevy transmissions
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2012 Used Chevy Transmissions For Sale

111 verified used 2012 Chevy transmissions in stock across 17 model tiles: 6L80 and 6L90 six-speeds, the Allison 1000 Duramax automatic, 6T40 and 6T70 front-drive six-speeds, the 2ML70 two-mode hybrid unit, TR-6060 manual and more. Every unit is VIN-matched, ASE-tested, photographed before shipment, and backed by a 6-month warranty (extended coverage up to 3 years) plus 30-day money-back. Free freight nationwide.

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Warranty On Every Unit
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Photos Before Shipment
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ASE-Tested & Verified
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Free Nationwide Shipping
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30-Day Money-Back
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2012 Chevy Transmission Families

Which gearbox sits behind which 2012 Chevy, and how many of each we hold today.

Transmission family Fits (2012) In stock
6T40 / 6T45 Transverse Six-Speed Cruze, Sonic, Malibu 2.4L, Equinox (opt MH7 / MH4), Captiva Sport, Orlando 20
6L90 Six-Speed Automatic Silverado 2500 HD / 3500 HD 6.0L gas, Suburban 2500, Express 2500 / 3500 6.0L 19
6L80 Six-Speed Automatic (opt MYC) Silverado 1500 5.3L / 6.2L, Tahoe 5.3L, Suburban 1500, Avalanche, Express 5.3L / 4.8L, Camaro SS, Caprice PPV 6.0L, Corvette auto 18
Allison 1000 Six-Speed Automatic 6.6L Duramax Silverado 2500 HD / 3500 HD and Express HD vans 11
4L60E / 4L65E Four-Speed Automatic Silverado 1500 4.3L / 4.8L, Colorado automatic, Express 1500 4.3L 10
TR-6060 Six-Speed Manual Corvette (opt MM6 / MZ6 / ME2 / MH3; LS3, Z06, ZR1) 8
6T70 / 6T75 Transverse Six-Speed Traverse, Malibu 3.6L (opt MH2), Equinox (opt MH2 / MHC), Impala 6
M32 Six-Speed Manual Cruze manual, Sonic 1.4L (opt MZ4), Orlando (opt MZ0) 6
2ML70 Two-Mode Hybrid Silverado 1500 Hybrid and Tahoe Hybrid, both 6.0L 4
Five- and Six-Speed Manual Colorado 2.9L (AR5), Camaro V6 (opt MV5), Sonic 1.8L (opt M26) 4
6L50 Six-Speed Automatic Camaro V6 (opt MYB), Caprice PPV 3.6L (opt MYA) 2
4ET50 Voltec Electric Drive Unit Volt, with and without opt YK8 2
HD Export Manual (confirmed by VIN) Silverado 3500 export 4x2; no gear count or option code listed, so the variant is not asserted 1
Total 111

Other Chevy Model Years

Every model year we hold Chevy transmissions for. Years without a link are in stock but have no year page yet — text us your VIN.

20242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
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Why Buy a 2012 Chevy Transmission from Auto Power Source

2012 was the last full season of GM's widest six-speed lineup. The GMT900 Silverado 1500 still offered three different gearboxes — the 4L60E behind the 4.3L and 4.8L, the 6L80 behind the 5.3L and 6.2L, and the 2ML70 two-mode unit behind the 6.0L Hybrid — while the heavy-duty trucks ran the 6L90 on gas and the Allison 1000 on the 6.6L Duramax. On the car side the new Sonic and the Cruze brought the transverse 6T40 and the M32 manual into volume, the Volt ran its own 4ET50 drive unit, and the Corvette kept the TR-6060. One model year, fifteen gearbox families, almost none of them interchangeable.

Every 2012 Chevy transmission we hold was pulled from a low-mileage donor vehicle, cataloged by VIN, and stored in our climate-controlled warehouse pending sale. Each unit went through our six-step inspection: VIN-matching, Shift-Testing through every gear under load, noise verification, visual inspection, multi-angle photography, palletized shipping. Our ASE-certified technicians do the testing, and rejected units never reach a buyer. Because GM pairs a specific gearbox with a specific engine and 2WD or 4WD configuration, the match is made against your VIN, not the model name on the listing.

You pay a fraction of dealer-new pricing for identical GM engineering, ship free on a heavy-duty pallet anywhere in the continental U.S., and get 30 days from delivery to return for any reason, no restocking fees. The 6-month warranty on every 2012 unit, extendable to 3 years, covers you after install. Across 100K+ engines and transmissions shipped, we hold a 0% fitment-related return rate.

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

Your 2012 Chevy Transmission Options: Compared

Most 2012 Chevy owners face four real choices when the transmission fails:

← Swipe sideways to see all columns →
Option Cost Reliability Warranty Fitment Match
Used OEM (this collection) $$$ Best Value High — tested Included VIN-matched
New OEM (dealer) $$$$$ 2-4× more High Manufacturer Exact
Aftermarket / Reman $$$$ Varies 6-12 mo May adapt
Junkyard $ Cheapest Unknown None DIY

Tested used OEM hits the sweet spot — same engineering as new, fraction of the cost.

2012 Chevy Transmission Buying Guide

5 things to verify before buying a used 2012 Chevy transmission:

  1. Read the RPO option code, not the model name. GM stamps the gearbox with an RPO code (MYA, MYB, MYC, MV5, MH2, MH4, MH7, MH8, MH9, MHC, MR5, MF3, MZ0, MZ4) and a 2012 Camaro, Equinox or Sonic shipped with more than one of them. The code, not the trim badge, decides what fits.
  2. Match the drivetrain before anything else. 2012 Silverado, Suburban, Tahoe, Avalanche, Colorado and Express units come in 4x2 and 4x4 (or FWD and AWD) builds with different output shafts and tail housings. A 4x4 unit will not bolt into a 4x2 truck.
  3. On HD trucks, confirm gas versus Duramax. The 6.0L gas Silverado 2500 HD and 3500 HD run the 6L90; the 6.6L Duramax runs the Allison 1000. They are not interchangeable, and the case ID in our titles tells them apart.
  4. On the hybrids and the Volt, check the drive unit. The 2012 Tahoe Hybrid and Silverado 1500 Hybrid pair the 6.0L with the 2ML70 two-mode transmission, a different assembly from the 6L80 behind the 5.3L in the same body, and the Volt uses its own 4ET50 Voltec unit.
  5. Confirm the match with your own VIN before you order. Your VIN settles the transmission code, drivetrain and build split in one step. Text it to +1-307-441-5554 and we will confirm in writing which unit fits your vehicle before you pay.

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

📞 Need help choosing the right 2012 Chevy transmission? Talk to our team live.Call 1-877-313-8995

Frequently Asked Questions

What is the warranty on a 2012 Chevy transmission?
Every 2012 Chevy transmission ships with a 6-month warranty included as standard, printed on each product page. Extended coverage of up to 3 years is available at checkout.
How do I know which 2012 Chevy transmission fits my vehicle?
GM identifies the gearbox by RPO option code, not by a VIN letter. MYA, MYB and MYC are all six-speed automatics behind different 2012 bodies, and the Silverado 1500 ran the 4L60E, the 6L80 and the 2ML70 hybrid unit in the same model year. Text your VIN to +1-307-441-5554 and we will confirm the exact unit in writing.
Are 2WD and 4WD 2012 transmissions interchangeable?
No. The 2012 Silverado, Suburban, Tahoe, Colorado and Express use different output shafts and tail housings for 4x2 and 4x4, which is why our listings carry the drivetrain in the title. Tell us your configuration and we match it exactly.
Which 2012 Chevy transmissions are diesel-only?
The Allison 1000 behind the 6.6L Duramax in the Silverado 2500 HD, 3500 HD and the Express HD vans. It is not interchangeable with the 6L90 behind the 6.0L gas V8 in the same trucks.
What are the case ID codes in your Silverado 2500 and Suburban 2500 titles?
Codes like 2DBA, 2DCA, 2DHA, 2DKA and 2D2A identify the exact 6L90 build for that truck, so we list the code per unit.
Does the 2012 Volt use a conventional transmission?
No. The Volt uses the 4ET50 Voltec electric drive unit, listed with and without opt YK8. It is not interchangeable with any 6T-series automatic.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit are sent before payment. If you do not approve the photos, you get every dollar back, with no restocking fees and no return freight charges.
How long until delivery?
Prep and ship time is 3-5 business days. Transit time is 2-3 business days after dispatch via freight carrier, typically 5-8 business days from order to delivery.
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Every Chevy transmission you buy earns rewards. 10 orders (yours or referred) = $500 cash credit. Silver, Gold, and Platinum tiers with discounts, priority support, and private inventory access.
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100K+
Engines+Transmissions In Stock
0%
fitment-related returns
All 50
states covered, free freight
36
brands covered

Our 6-Step Inspection & Shipping Process

Every 2012 Chevy transmission we ship has been through these six steps:

1. VIN-Matching
We match the donor VIN to your VIN to confirm engine/transmission code, emissions calibration, and drivetrain fit.
2. Tested & Verified
ASE-certified technicians Shift-Test every transmission through all gears under load, checking engagement, shift quality and holding under power.
3. Noise & Smoke Verification
Units are run to verify normal mechanical sound and clean operation — catches internal wear static tests miss.
4. Visual Inspection
Every accessible component is inspected: turbos, manifolds, valve covers, housings, accessories, sensor harnesses.
5. Photograph & Catalog
Multi-angle photos sent to you BEFORE we ship for your approval.
6. Palletize & Ship
Strapped on a heavy-duty wooden pallet, shipped via freight at no charge.

Our Photos-Before-Shipment Guarantee

Before any 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 the warranty included with every unit. Browse all 111 2012 Chevy transmissions below.

✉ Email Us at info@autopowersource.com
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