|SKU: ET2339

M32 Gearbox 3rd / 4th Gear Synchromesh Hub Gen 1 & 2 55570102 Vauxhall

Name: M32 Gearbox 3rd / 4th Gear Synchromesh Hub Gen 1 & 2 55570102 Vauxhall
Brand: Vauxhall
SKU: ET2339
Price: 63.66 GBP
Availability: InStock

£63.66 GBP (Inc VAT)

Ex VAT: £53.05

Tax included Shipping calculated at checkout.

✓ In stock at our Arlesey workshop

Order before 2pm on a working day and this is picked and dispatched the same day by express courier, normally with you in 1–2 working days.

Collection from Arlesey also available — choose it at checkout.

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Delivery and Shipping

UK delivery — parts we hold in stock

Ordered before 2pm on a working day, these are dispatched the same day by express courier and normally arrive within 1–2 working days.

Parts supplied from our European supplier

A large part of our range is held by our supplier in Germany rather than on our own shelves. We order these in for you as soon as you place the order. They normally dispatch within 7–10 working days, and are then sent on by express courier like anything else. Nothing ships to you direct from Germany — it comes to our Arlesey workshop first, so you deal only with us for returns and warranty.

Collection from Arlesey

Click and collect is available on parts we physically hold. If an item has to come in from our supplier it cannot be collected, and checkout will tell you so before you pay.

International

3–5 working days once dispatched. Any customs charges or excise duties are the responsibility of the buyer.

View our Shipping Policy

*Delivery times are estimates and can be affected by factors outside our control.

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M32 Gearbox 3rd & 4th Gear Synchromesh Hub (Gen 1 & 2) – Vauxhall, Opel, Fiat, Alfa Romeo, Chevrolet & Saab

This is the 3rd & 4th gear synchromesh (synchro) selector hub for the M32 6-speed manual gearbox, fitment location 24 on the gearbox diagram. The synchromesh is one of the most common wear items on the M32 — a worn or faulty synchro causes a crunching or grinding noise when changing gear and, left unrepaired, goes on to damage the gear and hub. This assembly contains one synchromesh with detents for use on 3rd and 4th gear.

Important – generation fitment: This part fits the Gen 1 & 2 M32 only. The Gen 1 & 2 gearbox uses a different tooth cut, synchromesh and hub design and is not compatible with the Gen 3 M32 gearbox (2016 onward).

Fits transmission: M32 6-speed manual gearbox (Gen 1 & 2)

OE / part number: 55570102

Fitment location: 24 on the M32 exploded diagram

Eco Torque M32 gearbox exploded diagram showing synchromesh hub fitment location 24

Vehicle Compatibility

Abarth

Grande Punto (199), 2007–2009
Punto (199), 2012–2014
Punto Evo (199), 2010–2012

Alfa Romeo

147 (937), 2000–2010
156 (932), 1997–2007
159 (939), 2005–2011
Brera (939), 2006–2011
Giulietta (940), 2010–2021
GT (937), 2004–2011
Mito (955), 2008–2020
Spider (939), 2006–2011

Chevrolet

Cruze (J300/J305/J308), 2009–2014
Orlando (J309), 2010–2014
Trax / Tracker, 2013–2014
Aveo (T300), 2011–2014
Malibu (V300), 2011–2015
Cruze USA/CAN (J300), 2010–2016
Cruze USA/CAN, 2016–2020
Sonic (T300), 2012–2020

Opel

ADAM (M13), 2013–2019
Astra H (A04), 2004–2010
Astra H TwinTop (A04), 2006–2010
Astra J (P10), 2009–2018
Astra K (B16), 2015–2022
Cascada (W13), 2013–2019
Corsa D (S07), 2006–2015
Corsa E (X15), 2015–2019
Insignia A (G09), 2008–2017
Insignia B (Z18), 2017–2022
Meriva A (X03), 2003–2010
Meriva B (S10), 2010–2017
Mokka (J13), 2012–2016
Mokka X (J13), 2016–2019
Zafira B (A05), 2005–2014
Zafira C (P12), 2012–2019
Signum (Z03), 2003–2008
Vectra C (Z02), 2002–2009

Vauxhall

ADAM (M13), 2013–2019
Astra H (A04), 2004–2010
Astra H TwinTop (A04), 2006–2010
Astra J (P10), 2009–2018
Astra K (B16), 2015–2022
Cascada (W13), 2013–2019
Corsa D (S07), 2006–2015
Corsa E (X15), 2015–2019
Insignia A (G09), 2008–2017
Insignia B (Z18), 2017–2022
Meriva A (X03), 2003–2010
Meriva B (S10), 2010–2017
Mokka (J13), 2012–2016
Mokka X (J13), 2016–2019
Zafira B (A05), 2005–2014
Zafira C (P12), 2012–2019

Fiat

Bravo (198), 2007–2015
Croma (194), 2005–2010
Grande Punto (199), 2005–2011
Linea (323), 2007–2014
Punto Evo (199), 2009–2012

Saab

9-5, 2010–2011

FAQs

How do I know if my M32 synchro hub needs replacing?

Crunching or grinding when selecting 3rd or 4th gear, or the gear baulking or popping out, usually points to a worn synchromesh. Left unrepaired it can damage the gears and hub.

Will this fit my M32 gearbox?

It fits Gen 1 & 2 M32 6-speed gearboxes. It does not fit the Gen 3 M32 (2016 onward), which uses a different tooth cut and hub design.

What is included?

One 3rd & 4th gear synchromesh selector hub assembly with detents (OE 55570102).

Is this a genuine part?

Yes — this is a genuine OE-specification synchromesh hub.

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.