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Transmission Assembly for 2013-2017 Buick, Chevrolet, & GMC • Acadia, Enclave, Traverse

Out of Stock
Pay-by-bank price
$ 3,132
or $3,229 paying by card
🏦 3% bank discount on your entire order — arranged at checkout

Product Notes Read before buying

Odometer 76,700 miles 🛡 120-day warranty included
awd donor
This is a used part. It fits vehicles with the 3.6L engine and 6-speed automatic transmission (option code M7X). It is for all-wheel drive (AWD) vehicles.

This is an All-Wheel Drive (AWD) transmission for vehicles with a 3.6L V6 engine. It will NOT fit Front-Wheel Drive (FWD) models. For the 2017 GMC Acadia, this part fits the 'Limited' model only, not the redesigned new body style.
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Not sure? Ask WrenchyYour Parts Assistant.

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Vehicle Fitment Guide

This part fits the following vehicles:

Buick 1 model(tapclick to expand)(tapclick to hide)
Enclave 2015-2016 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2015 - 2016
Chevrolet 1 model(tapclick to expand)(tapclick to hide)
Traverse 2013-2017 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
LS SUV 2013 - 2017 V6 3.6L AWD | Automatic | Hollander: TRAVERSE 13-16 AT; AWD | TRAVERSE 17 (AT), AWD; drive_type: include AWD; engine_size: include 3.6L; transmission: include Automatic; engine_config: include V6 [inferred]
2014 - 2015
GMC 1 model(tapclick to expand)(tapclick to hide)
Acadia 2014 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
2014
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Know This Transmission Before You Buy

The research behind our purchase interview — recalls, bulletins and real install economics for this transmission family:

A quick look at your own vehicle makes sure the right transmission shows up:

  • Verify the 8th digit of your VIN is D or C, confirming the 3.6L V6 engine.
  • Locate the Service Parts Identification (SPID) sticker in your glove box, center console, or spare tire tub and confirm the RPO code M7X is listed.
  • Physically look under the vehicle to confirm the presence of a rear driveshaft and rear differential, verifying All-Wheel Drive (AWD).
🔎 Where to look: Check the barcode label on your existing transmission case near the side pan rail to confirm it matches an AWD code like 3XRK or 4XRK.

What the install really takes — plan and budget with confidence:

8 to 13 hoursshop labor$1,200 to $2,200+typical shop bill, on top of the partAdvanced / ExpertDIY difficulty

Special tools this job needs:

  • Engine support fixture
  • Heavy-duty transmission jack
  • Torque converter holding tool
  • GM-compatible scan tool with J2534 pass-thru capability
  • Fluid pump for filling
🔌 Wiring harness: External wiring harness beyond the integral main connector is not included. Ensure manual shift valve pin is properly aligned with the internal shift linkage slider when installing or swapping the TEHCM.

Budget for these consumables at install:

  • GM Dexron VI Automatic Transmission Fluid (approx. 9.0 to 9.5 quarts total capacity; purchase 10-11 quarts to ensure complete fill)
  • Torque converter hub seal (front pump seal)
  • Left and right axle shaft seals
  • Power Transfer Unit (PTU/transfer case) input shaft seal
  • Transmission cooler line flush

What your vehicle’s computers will need after the swap:

⚠️ Requiredprogramming / calibration⚠️ Yesdealer tool needed⚠️ YesECU/PCM re-marriage

What’s involved: VIN-specific programming (using GM Service Programming System / SPS2) AND a Transmission Adaptive Relearn (Service Fast Learn).

The internal TEHCM (TCM) must be programmed to match your vehicle's exact VIN. If you do not program the module, the vehicle will remain in limp mode or may refuse to move at all. A Fast Learn adaptive relearn procedure must also be performed so the module can learn clutch volumes and return spring rates.

Pro tips for a smooth first start-up — hand them to whoever does the install:

  • Torque Converter Seating: Ensure the torque converter is fully and properly seated onto the input shaft and front pump gears (must click/drop three distinct times) before bolting to the engine to avoid cracking the front pump.
  • Subframe Alignment: Dropping the front subframe cradle is required. Mark alignment before removal and use alignment pins during reinstallation to prevent steering geometry issues.
  • AWD Transfer Case (PTU) Alignment: Ensure splines are perfectly aligned and the seal is not pinched when reinstalling the PTU to prevent gear lube leaks.
  • Fluid Level Check Procedure: No dipstick is present. Check fluid via the level control plug on the side of the case with the vehicle level, engine idling, and fluid temperature between 180°F and 203°F.

Easy to get right once you know them:

  • Ordering for a Front-Wheel Drive (FWD) Vehicle: This unit is specifically for AWD vehicles (option code M7X) and will not fit FWD models.
  • Skipping the TCM/TEHCM Programming: Attempting to drive without programming will cause communication codes, limp mode, or immediate clutch damage.
  • Reusing a Contaminated Transmission Cooler: Debris from the old failed transmission will wash into the replacement unit and destroy the solenoids if not hot-flushed or replaced.
  • Swapping a Contaminated TEHCM: Swapping your original TEHCM to avoid programming fees risks transferring destructive metal debris from your old failed transmission into the replacement unit.
  • Damaging the Manual Shift Linkage: Misaligning the manual shift valve pin with the internal shift linkage slider during installation will cause the transmission to get stuck in Park or fail to register gears.

Not issues with the units on this page — the manufacturer documented these for every transmission of this family, wherever you buy one. Handy for your installer:

moderateTSB 18-NA-358: Launch Shudder, 2-3 Upshift, or 3-2 Downshift2013-2017

🔎 Recommended at install: Updating the TCM calibration, performing a complete transmission fluid flush with updated Dexron VI fluid, or replacing the upper and lower valve body housings.

moderateTSB 18-NA-091: Torque Converter Clutch (TCC) Shudder2013-2017

🔎 Recommended at install: Performing a complete transmission fluid flush with updated Dexron VI fluid, or replacing the torque converter if internal clutch damage has occurred.

severeTEHCM Pressure Switch Failure2013-2017

🔎 Recommended at install: Addresses pressure switch laminated disk failures leading to delayed shifting, slipping, and codes P0841, P0842, P0872, P0873, P0877, P0878.

Researched from factory recalls, TSBs and OEM service data (reference unit 400-05073-5504008). Unit-specific details — mileage, condition, warranty, freight — are covered in the checkout interview.

Policies, in plain English.

Shipping & Handling

  • Ships by LTL freight on a pallet — a real freight truck, not a parcel van
  • Your checkout freight quote covers delivery to your door (liftgate service included for residential addresses)
  • The carrier calls ahead to schedule a delivery window — someone must be present to receive it
  • Typically palletized and picked up within 2–3 business days; transit time depends on distance

120-Day Warranty

This part includes a 120-day warranty.

  • If the part fails within the warranty window, we'll replace it or refund per the coverage terms
  • Coverage is parts-only — installation labor is not included
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Your pre-purchase interview reviews these exact terms with you before anything is charged.

Returns (30 Days)

We accept returns of uninstalled parts within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: This part ships by freight (LTL) — the part price is refundable per the terms above, but shipping costs are non-refundable and return freight follows the seller's return terms. Your pre-purchase interview walks through the exact numbers before you buy
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

Damaged in Shipping?

Freight damage is rare — and you're fully protected when you do two things at delivery:

  • Inspect before you sign — you're allowed time to look the pallet over while the driver waits
  • Write any damage on the delivery receipt before signing — that one line is what makes a freight claim succeed
  • Severe damage? Refuse the delivery — it goes back at no cost to you and we make it right
  • Photograph the pallet before unwrapping; report concealed damage within 24 hours of delivery

We handle the carrier claim — you just help document it. Your pre-purchase interview walks through this checklist too.

Order Cancellation

Cancel before shipment for a full refund. Once the pallet has been built, a preparation charge may apply — and once the freight carrier picks it up, shipping costs are non-refundable and standard return terms apply. Your pre-purchase interview shows the exact numbers before you pay.

Expert Guides

2013-2017 Acadia, Enclave & Traverse 6T75 Transmission: Problems, Identification, and Used Replacement

Identify common 6T75 failures, learn what kills this AWD transmission, and discover when replacing it with a used OEM unit makes the most financial sense.

Read Full Guide →

Related Trouble Codes (OBD-II)

19 matching guides

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.

Miscellaneous Information

OEM Part Numbers:
GM: 19354268, 24250057, 24260831
Other: 3XRK, 4XRK

Fits Years: 2013 2014 2015 2016 2017

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120DAY
Yard Warranty

Backed By The Selling Yard

This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.

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★★★★★ 4.9 1,451 verified reviews

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