9-Speed Automatic Transmission Assembly for 2019-2023 Chevrolet Blazer
Product Notes Read before buying
This is a 9-speed automatic transmission for All-Wheel Drive (AWD) models equipped with the 3.6L V6 engine only. OEM data indicates this transmission has a 3.49 final drive ratio; please verify this matches your vehicle's requirements before ordering.
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 |
|---|---|---|---|---|
| Base | SUV | 2019 | V6 3.6L | AWD | Automatic |
| Premier | SUV | 2019 - 2022 | V6 3.6L | AWD | Automatic |
| RS | SUV | 2019 - 2022 | V6 3.6L | AWD | Automatic |
| True North | SUV | 2019 - 2022 | V6 3.6L | AWD | Automatic |
| LT | SUV | 2020 - 2022 | V6 3.6L | AWD | Automatic |
| 2021, 2023 |
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 VIN 8th digit is 'S' (3.6L V6 engine).
- Verify vehicle is All-Wheel Drive (AWD) by checking for a rear differential and driveshaft.
- Check Service Parts Identification label for RPO code M3W or M3V.
What the install really takes — plan and budget with confidence:
Special tools this job needs:
- Engine support fixture
- Heavy-duty transmission jack
- Subframe alignment pins
- GM-compatible diagnostic scan tool (GDS2/SPS2)
- Transmission cooler line disconnect tools
Budget for these consumables at install:
- GM Dexron-VI Full Synthetic ATF (approx. 10 quarts for dry fill/overhaul)
- Transmission Filter & Pan Gasket
- Torque converter hub seal (pump seal)
- Left and right axle shaft seals
- High-pressure transmission cooler-line flush agent
What your vehicle’s computers will need after the swap:
What’s involved: Solenoid Characterization Data (MCVM) write and TCM adaptive relearn
The GM 9T65 requires unique Solenoid Characterization Data (TUN/PUN) to be programmed into the TCM via GM's Service Programming System (SPS2/Techline Connect) along with a Service Fast Learn adaptive relearn. Skipping this will cause immediate clutch damage.
Pro tips for a smooth first start-up — hand them to whoever does the install:
- Torque Converter Seating: Must feel/hear three distinct clicks/drops. If not fully seated, bolting to the engine will crack the internal oil pump gear.
- Fluid Level Check Procedure: No dipstick. Must check via side level check plug/standpipe with engine idling, vehicle level, and fluid temperature at 185°F to 203°F (85°C to 95°C).
- Subframe Alignment: Must use subframe alignment pins during reinstallation to prevent steering wheel and suspension geometry misalignment.
- Mandatory Cooler Line Flush: Debris from the old transmission will immediately destroy the replacement unit if not flushed.
Easy to get right once you know them:
- Skipping Solenoid Characterization Programming (assuming it is plug-and-play).
- Checking fluid level with the engine off (causes severe underfilling).
- Failing to flush the cooler lines.
- Using incorrect or generic multi-vehicle ATF instead of licensed Dexron-VI.
- Buying for the wrong vehicle (e.g., GMC Acadia or Chevy Traverse) assuming all 9T65 units are interchangeable.
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: Thoroughly flush vehicle's transmission cooler lines to prevent leftover metal debris from entering and destroying the replacement unit.
🔎 Recommended at install: Replace the valve body separator plate with an updated steel-reinforced plate.
🔎 Recommended at install: Perform a complete fluid flush and refill with high-grade synthetic Dexron-VI fluid.
🔎 Recommended at install: TCM software update at a dealership.
🔎 Recommended at install: Verify if your vehicle's VIN has any open recalls before completing the swap.
🔎 Recommended at install: Follow diagnostic steps in the bulletin.
Researched from factory recalls, TSBs and OEM service data (reference unit 400-11456-5579166). 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
2019-2023 Chevrolet Blazer 3.6L AWD 9T65 Transmission: Problems, Identification, and Used Replacement
Identify the exact GM 9T65 variant your Blazer needs, understand the common sun gear and clutch failures that kill them, and learn when to swap in a used OEM assembly.
Read Full Guide →Related Trouble Codes (OBD-II)
2 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: 24295560
Other: 9AKB, 9CKB, 9VLB
Fits Years: 2019 2020 2021 2022 2023
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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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