OPEL • OPT •
G4X
Category: Drivetrain
Automatic transmission towing tune
Tow tune.
Gearbox tuning optimized for towing.
Want the full factory build sheet for your car?
Get a complete VehicleDataSheet (options, equipment, specs) for your VIN.
Related OPT codes
- OPT G6Y — Manual transmission standard
- OPT G3Y — Automatic transmission standard
- OPT G7W — Manual transmission economy ratios
- OPT G8W — Manual transmission reinforced clutch
- OPT G5X — Automatic transmission economy tuning
- OPT G9Z — Manual transmission crawl ratio
Frequently Asked Questions
What does OPT code G4X mean?
OPT code G4X is a factory equipment code used by OPEL to describe a specific vehicle configuration or component.
Where can I find OPT code G4X on my car?
This code is typically found in the vehicle’s factory build data, service documentation, or can be confirmed by decoding the VIN.
Does OPT code G4X affect maintenance or parts?
Yes. Factory codes determine correct parts selection, software compatibility, and service procedures for your exact vehicle configuration.
How can I verify OPT code G4X for my vehicle?
The most reliable way is to order a complete Vehicle Data Sheet decoded directly from your vehicle’s VIN.