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Product Details
| Part Number: | SYNK20-5B |
| Brand: | SynchroTech |
| Transmission: | Manual |
Synchrotech SYN-K20-5B – Brass Synchro (5th or 6th Gear, Single-Cone). A high-quality replacement synchronizer ring engineered for the 5th or 6th gear in Honda/Acura K-Series transmissions. Crafted from premium brass, this single-cone synchro offers reliable OEM-like performance and durability at an affordable price.
Fitment:
- Acura RSX, TSX, ITR, CTR
- Honda Civic Si (EP3, FN2, FD2)
- Civic Type R (EP3)
- Compatible with both 5-speed and 6-speed transmissions across 2002–2015 model years
- Specifically fits:
- 2005–2015 6-speed (5th or 6th gear, single-cone)
- 2002–2006 5-speed (3rd/4th/5th gear, single-cone)
Features:
- Premium Brass Construction: Made from high-quality Japanese brass, this synchro delivers natural resilience, long wear life, and smooth engagement—ideal for frequent or spirited driving.
- Single-Cone Design for Efficient Shifting: Optimized for the gear ratios where less cone complexity is needed, ensuring consistent and dependable gear engagement.
The Synchrotech SYN-K20-5B Brass Synchro is an excellent choice for anyone looking to restore shift quality or replace a worn 5th or 6th gear synchro in their Honda/Acura K-Series manual transmission. With its durable brass build, single-cone design, wide compatibility, and wallet-friendly price, it offers precise performance without requiring a full transmission rebuild.
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim | Notes |
|---|---|---|---|---|
| 2002 | Acura | RSX | Type-S | Manual |
| 2003 | Acura | RSX | Type-S | Manual |
| 2004 | Acura | RSX | Type-S | Manual |
| 2004 | Acura | TSX | Base | Manual |
| 2005 | Acura | RSX | Type-S | Manual |
| 2005 | Acura | TSX | Base | Manual |
| 2006 | Acura | RSX | Type-S | Manual |
| 2006 | Acura | TSX | Base | Manual |
| 2006 | Honda | Civic | Si | Manual |
| 2007 | Acura | TSX | Base | Manual |
| 2007 | Honda | Civic | Si | Manual |
| 2008 | Acura | TSX | Base | Manual |
| 2008 | Honda | Civic | MUGEN Si | Manual |
| 2008 | Honda | Civic | Si | Manual |
| 2009 | Honda | Civic | Si | Manual |
| 2010 | Honda | Civic | Si | Manual |
| 2011 | Honda | Civic | Si | Manual |
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