Remanufactured Complete GM 6T31 Automatic Transmission Assembly, 6 Speed FWD

Product Specification

Product Introduction

The GM 6T31 front-wheel-drive six-speed automatic transaxle is factory-fitted to Chevrolet and Buick compact fuel vehicles. Original factory units commonly suffer from gear slipping, jerky shifts, delayed gear engagement, valve body stalling and TCM malfunctions after long mileage.

Our remanufactured 6T31 complete transmission is a cost-effective premium substitute for OEM new gearboxes and unreliable second-hand cores. Each assembly is fully disassembled, deep cleaned, upgraded and load-tested, eliminating hidden wear risks to deliver smooth, stable driving performance. All units arrive ready for direct installation without extra modification.

Strict Remanufacturing Production Standards

1. Full Disassembly & Multi-Stage Ultrasonic Deep Cleaning We take apart every component of the transmission housing, gear sets, shafts, valve bodies and pistons. Carbon deposits, metal powder and aging sludge are thoroughly removed via ultrasonic washing to restore a clean internal operating environment.
2. Full Renewal Of All Consumable Wear Components All critical wearing parts are replaced with new high-spec accessories: friction clutch plates, steel separator plates, all oil seals, gaskets, piston rubber membranes, bearings and bushings. No reused worn parts left inside.
3. Calibrated Upgraded Valve Body & Integrated TCM Module Defective original solenoids and worn valve spools are swapped for brand-new matched assemblies. Effectively resolve common including 2-3 gear shudder, low line pressure and error codes P0751/P0796. The built-in TCM control module is pre-calibrated for matched vehicle models.
4. Complete Remanufactured Torque Converter Included Each order includes a overhauled torque converter, fully leak-tested and lock-up pressure calibrated to prevent acceleration slipping and abnormal vibration.
5. 2-Hour Dynamic Bench Load Simulation Test Every finished 6T31 transmission runs a full road-simulated load test on professional transmission test equipment. We inspect shift timing, hydraulic pressure, lock-up function and fluid tightness to guarantee zero leakage and consistent shifting before packaging.
6. Anti-Rust Surface Refinishing Transmission outer housing undergoes polishing and anti-corrosion treatment, presenting neat and uniform appearance as shown in our bulk inventory photos.

Core Technical Parameters

• Model: GM 6T31 Six-Speed Automatic Transaxle
• Drive Type: Front Wheel Drive (FWD)
• Gear Layout: 6 Forward Gears + Reverse Gear
• Matching Engines: 1.4L Turbo / 1.6L Naturally Aspirated Gasoline Engine
• Product Condition: Fully Remanufactured Complete Assembly
• Standard Included Parts: Torque Converter, Integrated TCM & Valve Body, Full Solenoid Pack, Internal Wiring Harness
• Warranty Policy: 12 Months Unlimited Mileage
• Installation Feature: OE standard mounting holes, plug-and-play direct fit

Compatible Vehicle Range

Chevrolet

Cruze 1.4 Turbo / 1.6L Naturally Aspirated (2011-2019) Sonic / Aveo 1.6L

Buick

Excelle GT & Excelle XT 1.6L Verano 1.4L Turbo

Good for below customer 

• Independent auto repair shops & professional transmission overhaul garages (bulk wholesale supply)
• Private car owners needing one-stop full gearbox replacement
• Cross-border auto spare parts distributors for North America, Southeast Asia aftermarket
• Auto repair chain stores seeking stable, low-fault reman transmission inventory

Packaging & Global Shipping Details

• Heavy-duty shockproof solid wooden case packaging to avoid collision damage during transit
• All oil inlet and outlet ports are sealed tightly to prevent transmission fluid leakage
• Dual shipping solutions: Sea bulk freight for large orders, air express for small retail orders
• Stock units ship within 2-3 working days after payment; customized bulk orders take 7-15 production days

Official Warranty Terms

• 12-month unlimited mileage warranty valid from the delivery receipt date
• Warranty covers internal mechanical failures caused by our remanufacturing craftsmanship defects
• Excluded damages: Improper installation error, incompatible transmission fluid, vehicle collision damage, engine overheating and unauthorized self-modification

✅ Complete all-in-one 6T31 transmission with torque converter, valve body and TCM module

✅ Every wearable internal component replaced with brand-new premium parts

✅ Passed 2-hour professional dynamic bench load testing for stable shifting

✅ Eradicates common failures: gear slip, harsh shifting, delayed engagement, transmission fault codes

✅ 100% OE mounting standard for Chevy Cruze & Buick Excelle/Verano, no modification needed

✅ Polished anti-rust housing, uniform finished appearance from factory bulk stock

✅ Far longer service life than used second-hand core transmissions

✅ 12-month full quality warranty + free remote technical installation guidance

✅ Support retail single unit purchase & bulk wholesale with tiered volume discounts

✅ Factory direct supply, cut out middlemen for competitive pricing

FAQ:

Q1: Does this listing include torque converter and valve body assembly?

A1: Absolutely. This is a full complete transmission assembly package. The torque converter, integrated TCM control module and solenoid valve body are all pre-installed. You do not need to purchase extra supporting parts separately.

Q2: How to confirm this 6T31 gearbox fits my vehicle correctly?

A2: It matches Chevrolet Cruze 1.4T/1.6, Buick Excelle GT/XT 1.6 and Buick Verano 1.4 Turbo. To eliminate fitment error risk, send us your vehicle VIN code before placing orders, we will complete professional matching verification for free.

Q3: What is the difference between remanufactured 6T31 and second-hand used transmission?

A3: Second-hand core transmissions retain original worn friction plates, aging seals and accumulated internal sludge, which easily break down again within short driving distance. Our remanufactured unit renews all vulnerable components and passes strict bench testing, plus a formal warranty, greatly reducing your long-term repair cost and vehicle downtime.

Q4: Do you offer preferential prices for repair shops purchasing bulk inventory?

A4: Yes. We provide progressive wholesale discounts for orders over 5 units. Stable monthly stock supply and custom private-label packaging services are available. Contact our sales team to get exclusive bulk quotation.

Q5: What should I prepare before installing this transmission?

A5: Prepare matched OEM specification automatic transmission fluid. We recommend hiring a professional transmission repair technician for installation to avoid invalidation of the warranty caused by improper operation.