6-Speed Automatic Transmission Assembly for 2014 Chevrolet & GMC
Product Notes Read before buying
This is a 6-speed automatic transmission for vehicles with Front-Wheel Drive (FWD) and the 2.4L 4-cylinder engine only. It will not fit All-Wheel Drive (AWD) models or vehicles with a V6 engine.
Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.
Vehicle Fitment Guide
This part fits the following vehicles:
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| LT | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| LTZ | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| LS | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| LS | SUV | 2014 | L4 2.4L | FWD | Automatic |
| LT | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| LT | SUV | 2014 | L4 2.4L | FWD | Automatic |
| LTZ | SUV | 2014 | L4 2.4L | FWD | Automatic |
| LTZ | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| SubmodelSUB- MODEL |
Body Style | Years | Engine | Attributes |
|---|---|---|---|---|
| Denali | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| Denali | SUV | 2014 | L4 2.4L | FWD | Automatic |
| SLE | SUV | 2014 | L4 2.4L | FWD | Automatic |
| SLE | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
| SLT | SUV | 2014 | L4 2.4L | FWD | Automatic |
| SLT | SUV | 2014 | L4 2.4L FLEX | FWD | Automatic |
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 the VIN is '1' or 'K' to confirm the 2.4L engine.
- Confirm the vehicle is Front-Wheel Drive (FWD) and does not have a rear driveshaft or rear differential.
- Check the SPID sticker in the glove box or spare tire well for RPO code 'MH7' (and ensure it is not 'MHC').
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Engine support fixture
- Transmission jack
- Subframe alignment pins
- Transmission cooler line flush canister/adapter
- GM-compatible scan tool (Tech 2 / MDI with GDS2/SPS subscription)
Budget for these consumables at install:
- DEXRON VI Full Synthetic ATF (approx. 4.2 to 6.3 quarts for service refill, 7.4 to 9.5 quarts for dry fill; purchase 10 quarts to be safe)
- Torque converter hub seal (front pump seal)
- Axle shaft seals (both sides)
- Dedicated transmission cooler line flush agent
What your vehicle’s computers will need after the swap:
What’s involved: VIN-specific programming (re-flashing the TCM) and TCM Adaptive Relearn (Service Fast Learn)
The internal TEHCM must be reprogrammed with the vehicle's specific VIN and latest GM calibration software via GM's online server (TIS2Web/SPS). A 'Service Fast Learn' procedure must then be performed to calibrate shift adapts.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque converter must be fully seated (clicking/dropping down 3 distinct times) before bolting transmission to engine to prevent cracking the front pump.
- Front subframe must be partially dropped during removal; subframe alignment pins must be used during reassembly, followed by a professional four-wheel alignment.
- Main TEHCM electrical connector is extremely fragile; handle with care to avoid bending pins or cracking the module.
- Strict fluid level check procedure: must be checked at operating temperature (185°F to 203°F) with engine idling, vehicle level, and using the side case check plug (no dipstick).
Easy to get right once you know them:
- Reusing the old TEHCM to avoid programming costs, which transfers contaminated fluid and metal debris into the replacement transmission.
- Skipping the mandatory transmission cooler and line flush, leading to immediate contamination and failure of the replacement unit.
- Neglecting the 'Service Fast Learn' adaptive reset, causing incorrect line pressures, slipping, flaring, or harsh shifts that ruin clutches.
- Checking fluid levels cold or with the engine off, leading to severe underfilling and subsequent pump starvation and clutch damage.
- Using generic multi-vehicle ATF instead of licensed DEXRON VI fluid.
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:
🔎 Recommended at install: Revised TCM software calibration
🔎 Recommended at install: Inspect and repair damaged pins at main harness connector, loose ground wire, or harness chafing against engine block
🔎 Recommended at install: Repair damaged high-speed communication wires and secure harness away from camshaft/valve cover edge
🔎 Recommended at install: Replace wave plate; requires transmission rebuild or replacement
🔎 Recommended at install: Reset and relearn transmission adaptive functions using a dealer scan tool
🔎 Recommended at install: Diagnose and address issues within the torque converter clutch (TCC)
🔎 Recommended at install: Adjust or replace shift cable adjuster to prevent rollaway risk (external linkage issue)
Researched from factory recalls, TSBs and OEM service data (reference unit 400-05084-2263552). 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
2014 Equinox, Terrain & Captiva Sport 2.4L 6T45 Transmission: Problems, Identification, and Used Replacement
Identify the exact GM Hydra-Matic 6T45 variant for your 2.4L FWD SUV, understand common wave plate and TEHCM failures, and learn what to look for when buying a used replacement unit.
Read Full Guide →Related Trouble Codes (OBD-II)
32 matching guidesIf 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.
Miscellaneous Information
OEM Part Numbers:
GM: 19354012, 24260693, 24260858, 24262565, 24273827
Other: 4ABW, 8170680, 8170698
Fits Years: 2014
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This unit ships with the selling yard's 120-day warranty. Longer plans can be requested during checkout.
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