Used Buick Transmissions For Sale
A replacement transmission from the dealer can run $2,800–$6,500+. We carry the same OEM unit at 40–60% less — fitment verified before you pay a dime.
OEM Buick Transmissions · Low Miles · Tested & Inspected · Ships Free Nationwide
- OEM fitment verified — we confirm displacement, configuration, and factory build codes for your exact vehicle before quoting.
- Warranty included — every transmission comes with warranty coverage. Extended warranty options may be available.
- Fast insured freight shipping — drained, palletized, and insured for safe delivery to your repair shop or address.
- Nationwide OEM inventory — transmissions for domestic and import vehicles inspected and ready to ship.
Check Transmission Price & Availability
Takes under 60 seconds. No obligation.
Need it faster? Call (888) 488-6545 for priority quotes.
"Needed a transmission for my F-150. Nationwide verified the exact match by VIN, and it showed up at my mechanic's shop palletized and ready to drop in. Saved over $2,500 vs the dealer."
— Carlos M., AZTransmissions for every major make
Common Buick Transmission Issues
These are the most frequent reasons Buick owners need a replacement transmission.
6T40/6T70 — Wave Plate Fracture & 3-5-R Clutch Failure: The 6T40/6T70 6-speed in the Encore, Verano, and LaCrosse develops a well-known failure where the 3-5-R wave plate fractures, causing loss of 3rd, 5th, and reverse gears. This is an internal hard-part failure that cannot be fixed without a full teardown. A replacement transmission with fresh wave plates and clutch packs eliminates the issue at a cost comparable to or less than a rebuild.
9T50/9T65 — Shift Quality & Torque Converter Shudder: The 9-speed in the current Enclave and Envision can develop rough shifts and hunting between gears under certain conditions, plus torque converter shudder similar to the 8L90 issue. A replacement with a fresh converter and updated fluid specification resolves the shift quality complaints entirely.
6T75 (Enclave 2008–2017) — Torque Converter & Valve Body: The 6T75 in the first-gen Enclave develops torque converter clutch slip and valve body wear that causes delayed engagement and harsh shifts. The combined repair often approaches the cost of a replacement — making the complete swap the better value with fresh internals throughout.
Buick transmissions share GM’s highest-demand platforms — Enclave and Encore units move fast. Lock in your quote now.
Why Choose Nationwide Auto Parts USA
How it works — simple and accurate
Transmissions vary by configuration and build codes. We verify everything first, then quote from confirmed inventory.
What affects your delivered price
Online price ranges can be misleading. We quote the exact unit for your vehicle with delivery included.
Buick Transmission — Quick Answers
Are Buick transmissions the same as Chevrolet?
Yes — GM platforms. The Enclave 9T65 is the same as the Traverse, the 6T75 matches the Acadia, and the Encore 6T40 matches the Equinox. We source from the full GM pool for maximum availability.
What is the Buick wave plate failure?
The 3-5-R wave plate in the 6T40/6T70 fractures internally, causing sudden loss of 3rd, 5th, and reverse gears. This is a common GM 6-speed failure that requires transmission replacement — the fractured plate cannot be repaired in-vehicle.
Does the Buick transmission come with the torque converter?
Yes — every automatic transmission ships with the matching torque converter included. This is important because the converter is often the source of shudder complaints, and shipping a matched pair ensures the issue is fully resolved.
That transmission isn't going to replace itself
customers quoted today — every day without your vehicle costs you money. Lock in your price in 60 seconds, no obligation.
