F17 Gearbox Housing Detent Fork 90470662

F17 Gearbox Housing Detent Fork – Vauxhall, Opel, Saab & Chevrolet (OE Part 90470662)

This genuine OE detent fork (part number 90470662) fits the F17 5-speed manual gearbox found in a range of Vauxhall, Opel, Saab and Chevrolet models. The detent fork locates within the gearbox housing and is responsible for holding gear selector forks in their engaged position. Wear or failure of the detent fork leads to gears popping out under load — a common complaint on high-mileage F17 units.

Fits transmission: F17 5-speed manual gearbox

OE part number: 90470662 (Vauxhall / Opel)

Fits vehicles: Vauxhall, Opel, Saab, Chevrolet — see vehicle compatibility tab for full model and year range list.

What does the detent fork do in the F17 gearbox?

The detent fork works with the detent ball and spring to hold a selected gear in position. When the detent fork is worn, the spring pressure on the gear selector fork decreases and the gearbox can jump out of gear under acceleration or overrun.

Which gears are most commonly affected by detent fork wear?

Third and fourth gear are most commonly affected on the F17, as they experience the highest load cycles. However, any gear can be affected if the fork is worn sufficiently.

Is 90470662 the only part number for this fork?

90470662 is the primary OE part number used by Vauxhall and Opel. The same part number is cross-referenced across the F17 fitment range including Saab and Chevrolet applications.

Can this fork be replaced without a full gearbox rebuild?

Yes, in most cases the detent fork can be replaced during a targeted repair without a full rebuild, provided the other internal components are in good condition. Your gearbox specialist will be able to advise after inspection.

Does this fork also fit the F17 Easytronic semi-automatic version?

The F17 Easytronic uses the same basic gearbox internals as the 5-speed manual. However, confirm the specific part compatibility with your gearbox specialist before ordering for an Easytronic application.

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: ET2031