FRC9388 | 5th Gear Synchroniser - 4 Cylinder | Discovery 1 & Range Rover Classic
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To check the stock of Genuine Parts before placing an order please use our Contact Us page
To check the stock of Genuine Parts before placing an order please use our Contact Us page
Land Rover Part Number: FRC9388 - 5th Gear Synchroniser Assembly
FRC9388 is a 5th Gear Synchroniser Assembly. Fitted to the 77mm 5-speed manual transmission mainshaft, this synchroniser aligns rotational speeds between the mainshaft and the 5th gear before engagement so the gear can be locked to the shaft smoothly. The assembly contains synchroniser rings and engagement dogs and operates under axial movement from the selector mechanism; on 4-cylinder 5-speed applications it is exposed to high sliding loads at cruising gears, so wear will affect shift quality into 5th and increase gearbox noise. Replacement of the synchroniser assembly is a common repair when direct engagement becomes notchy or if the synchroniser ring is damaged; during reassembly components must be aligned to the mainshaft stack and kept free of contamination to restore correct shift function.
Use the compatibility data below to confirm fitment against your V.I.N.
Compatibility
- Discovery 1 (1989-1998) - 4 Cylinder, Manual Transmission - From VIN FA393361 to WA799999
- Range Rover Classic (1986-1991) - 4 Cylinder, Manual Transmission - To VIN HA610293
Frequently Asked Questions
The FRC9388 synchroniser assembly matches rotational speeds between the mainshaft and 5th gear to allow smooth engagement. It contains synchroniser rings and engagement dogs and is operated by axial movement from the selector mechanism to lock the gear once speeds are matched. Wear or damage to the synchroniser ring will make 5th gear engagement notchy and may increase gearbox noise, so replacement is a common repair in those cases.
| Model | Variant |
|---|---|
| Land Rover Discovery 1 (1989-1998) | 4 Cylinder, Manual Transmission (From VIN FA393361 to WA799999) |
| Land Rover Range Rover Classic (1986-1991) | 4 Cylinder, Manual Transmission (To VIN HA610293) |
If you are unsure of compatibility with your vehicle, you can also confirm by checking against your V.I.N. Simply reach out to us with your V.I.N and desired part number via our Contact page or use our Finding Part Numbers page.
Replacement of the synchroniser assembly is a common repair when direct engagement into 5th becomes notchy or if the synchroniser ring is damaged.
- C8 products are usually supplied by Britpart.
- L8 products are genuine Land Rover parts.
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