F17 Gearbox Output Pinion Shaft (18T) W394 5716031 / 55564903

F17 Transmission Output Pinion Shaft (18T) W394 – 5716031 / 55564903

OEM output pinion shaft with 18 teeth for Chevrolet, Opel/Vauxhall and Saab vehicles fitted with the F17 W394 (Wide Ratio) 5-speed manual gearbox. Part numbers 5716031 and 55564903 are interchangeable references for this shaft.

OE part numbers: 5716031 / 55564903

Tooth count: 18T

Fits transmission: F17 W394 5-Speed Manual Gearbox

Fits makes: Chevrolet, Opel, Vauxhall, Saab

What is the W394 designation on the F17 gearbox?

W394 refers to the Wide Ratio 394 variant of the F17 5-speed manual gearbox, distinguishing it from other F17 ratio sets used across the Vauxhall/Opel range.

Is this a genuine OEM part?

Yes – this output pinion shaft is manufactured to OEM specification and is a direct replacement for the original component.

Will this shaft fit my Vauxhall Corsa?

If your Corsa is fitted with the F17 W394 gearbox, this shaft is compatible. Send us your registration or VIN to confirm the exact gearbox variant before ordering.

What is the difference between part numbers 5716031 and 55564903?

Both numbers refer to the same F17 W394 18T output pinion shaft. 55564903 is the updated superseded reference; both are equivalent replacements.

Can I use my UK registration to check compatibility?

Yes – send us your UK registration or VIN and we will confirm whether this is the correct output shaft for your specific vehicle and gearbox variant.

Why Choose Eco Torque?

As specialists in gearbox rebuilds and repairs, Eco Torque takes pride in offering genuine gearbox parts, high-quality aftermarket alternatives and competitive pricing.

Need Help Finding the Right Part?

If you are unsure whether this part is compatible with your vehicle, send us your UK registration number or VIN and we will help you find the correct part.

Reference Number: ET2290