Opel 6T40 6-Speed Automatic Gearbox

Opel (GM Hydra-Matic) 6T40 6-Speed Automatic Gearbox For Sale.

Looking to replace your Opel GM Hydra-Matic 6T40 automatic gearbox? The Opel 6T40 is a reliable 6-speed automatic transmission engineered by General Motors to deliver smooth gear changes, efficient power delivery, and dependable everyday performance. Designed for front-wheel-drive Opel models, this electronically controlled gearbox offers an excellent balance of driving comfort, fuel efficiency, and durability. Its proven reliability has made it a popular replacement transmission for a wide range of modern Opel vehicles.

Compatible Opel Models

• Opel Astra J
• Opel Meriva B
• Opel Mokka
• Opel Zafira Tourer C
• Opel Insignia (selected variants)
• Opel Cascada
• Chevrolet Cruze
• Buick Verano (GM platform equivalent)

Gearbox Specifications

• Gearbox Code: 6T40
• Transmission Type: Automatic
• Number of Gears: 6-Speed
• Drive Type: Front-Wheel Drive (FWD)
• Mounting Layout: Transverse
• Manufacturer: General Motors (GM Hydra-Matic)
• Transmission Control: Electronic

Common Weaknesses & Maintenance Notes.

Common 6T40 gearbox issues include transmission fluid deterioration, shift solenoid wear, valve body faults, and torque converter problems on higher-mileage vehicles. Regular transmission fluid servicing, cooling system inspections, and early diagnosis of shifting concerns can help improve reliability and extend the gearbox’s lifespan.

The Opel GM Hydra-Matic 6T40 6-speed automatic gearbox is a dependable replacement transmission offering smooth performance and long-lasting durability. Contact us today for stock availability, competitive pricing, and nationwide delivery of quality used Opel 6T40 gearboxes.