Synchrotech 3rd/4th Gear Synchronizer Sleeve – Honda B/H/F-Series Manual Transmission (SO-120)
The Synchrotech 3rd/4th Gear Synchronizer Sleeve (SO-120) is a transmission component for Honda B/H/F-Series Manual Transmission. Designed for repairing or rebuilding compatible Honda and Acura manual gearboxes, it helps address worn transmission components during a properly inspected rebuild. This listing focuses on correct part identification and transmission compatibility rather than engine code alone.
Key Features & Application
- Manufacturer: Synchrotech Transmissions
- Part number: SO-120
- Transmission family: B/H/F-Series
- Service area: 3rd and 4th gear
- Purpose: Replacement component for a compatible manual transmission rebuild or repair
This sleeve is intended for the 3rd/4th synchronizer assembly in compatible B-, H- and F-series gearboxes.
Transmission Fitment
Select 1992–2001 B-, H- and F-series manual transmissions.
Fitment warning: Check the specific transmission code and existing hub/sleeve assembly; engine family alone is not sufficient to confirm fitment.
Product Specifications
| Brand | Synchrotech |
|---|---|
| Part number | SO-120 |
| Product type | 3rd/4th Gear Synchronizer Sleeve |
| Transmission family | B/H/F-Series |
| Gear coverage / application | 3rd and 4th gear |
What's Included
One 3rd/4th gear sleeve.
Installation Notes
Transmission disassembly and inspection are required. Check mating gears, hubs, sleeves, bearings and synchronizer components as applicable; replacing one worn part will not correct damage elsewhere in the assembly. Professional installation is recommended, and exact fitment should be confirmed before purchase.
