M32 Gearbox 4th Gear Gen 1 48T 55566891 Vauxhall / Alfa Romeo / Fiat
M32 Gearbox 4th Gear Gen 1 48T 55566891 Vauxhall / Alfa Romeo / Fiat Special Order - Please Contact To Purchase
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M32 Transmission 4th Gear (48T) Generation 1
Vauxhall / Opel — 55566891
Generation 1 M32 4th gear, 48 teeth — output shaft position 28.
This gear will not fit Generation 2 or Generation 3 M32 gearboxes.
Part Number
55566891
Fitment location 28 on diagram
Vehicle Compatibility
Generation 1 M32 gearbox — Vauxhall / Opel / Alfa Romeo / Fiat / Chevrolet / Saab vehicles with M32 / F17 / F23 Gen 1 gearbox. Not compatible with Gen 2 or Gen 3.
Why Choose Eco Torque?
As M32 gearbox rebuild and repair specialists, Eco Torque was one of the first companies in the UK to offer M32 bearing and gear upgrades. We pride ourselves on sourcing and supplying only parts we trust.
Browse Eco Torque's ever-evolving product range at competitive prices.
Need Help Finding the Right Part?
If you cannot find the items you need or are unsure if the part is compatible with your vehicle make and model, please send us your UK registration number or VIN Code and we will direct you to the right part.
Frequently Asked Questions
Q: How do I identify a Gen 1 M32?
A: Generation 1 M32 gearboxes were fitted from around 2002 up to approximately 2009/2010 in most applications. If in doubt, cross-reference your gearbox variant code or contact us with your VIN.
Q: What symptoms indicate a worn 4th gear?
A: Common symptoms include difficulty engaging 4th gear, crunching or jumping out of 4th, and abnormal noise under load in 4th.
Q: Is this a genuine OE part?
A: Yes. The OE part number for this 4th gear is 55566891, manufactured to original specification.
Reference Number: ET2351
Important
Information for Buyers
Stock & Processing Times: These can vary depending on items, please contact us for availability before ordering.
Special Order Items: Items that are ordered directly from the manufacturer are by special order only. This means they can not be cancelled or returned unless faulty. Items returned as faulty are sent back to the manufacturer for inspection and a report on the refund decision will be issued between 2-3 weeks after they have received the item.
Qualified Installation Required: All components must be installed by a certified professional to ensure proper performance and avoid warranty issues.
Packaging Note: Due to the fragile nature of the original packaging, some kits may be shipped in secure, unmarked boxes. If you require original packaging, please consider this before purchasing.
*Images for reference illustration purposes only, product may be different in design.
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