Synchrotech 3rd/4th Gear Synchronizer Sleeve – Honda K-Series K20/K24 Manual Transmission (SO-K20-3)
The Synchrotech 3rd/4th Gear Synchronizer Sleeve (SO-K20-3) is a transmission component for Honda K-Series K20/K24 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-K20-3
- Transmission family: K-Series
- Service area: 3rd and 4th gear
- Purpose: Replacement component for a compatible manual transmission rebuild or repair
This product is intended for 3rd and 4th gear service in compatible K-Series transmissions. Inspect the existing components before selecting replacement parts.
Transmission Fitment
Select K-series manual gearboxes used in RSX, TSX, Civic Si and Type R applications.
Fitment warning: Match the part number to your existing synchronizer hub and sleeve; do not order based solely on engine code or model year.
Product Specifications
| Brand | Synchrotech |
|---|---|
| Part number | SO-K20-3 |
| Product type | 3rd/4th Gear Synchronizer Sleeve |
| Transmission family | K-Series |
| Gear coverage / application | 3rd and 4th gear |
What's Included
One synchronizer 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.
