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Product Details
| Part Number: | SO-D16-3 |
| Brand: | Synchrotech |
The Synchrotech SO-D16-3 3rd gear sleeve is a high-quality replacement slider sleeve designed for Honda D16 D-series manual transmissions. Engineered to restore precise gear engagement and improve transmission reliability, this sleeve is ideal for worn synchro repairs, transmission rebuilds, and performance street applications.
Built from hardened steel and precision-machined for accurate fitment, the SO-D16-3 helps reduce grinding, improve shift feel, and maintain dependable performance under aggressive driving conditions.
Key Features
- Direct Replacement 3rd Gear Sleeve – Designed for compatible Honda D16 D-series manual transmissions
- Hardened Steel Construction – Increased durability and resistance to wear
- Restores Smooth Gear Engagement – Helps eliminate worn slider and shifting issues
- Ideal for Transmission Rebuilds – Recommended during synchro and gear service
- Precision Machined – Ensures accurate fitment and reliable operation
- Improved Shift Feel – Supports crisp, consistent shifts under load
- OEM-Style Fitment – Direct installation into compatible D-series transmission assemblies
- Built for Street & Performance Applications – Handles aggressive driving and repeated shifting demands
Vehicle Fitment
- Compatible with select Honda D16 D-series manual transmissions
- Commonly used in Civic and Del Sol D-series transmission rebuild applications
- 3rd-4th SOHC Civic 1988-1995 (L3 S20)
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 |
|---|---|---|---|
| 1988 | Honda | Civic | Base |
| 1988 | Honda | Civic | DX |
| 1988 | Honda | Civic | LX |
| 1988 | Honda | Civic | RT 4WD |
| 1988 | Honda | Civic | Wagovan |
| 1989 | Honda | Civic | Base |
| 1989 | Honda | Civic | DX |
| 1989 | Honda | Civic | LX |
| 1989 | Honda | Civic | RT 4WD |
| 1989 | Honda | Civic | Si |
| 1989 | Honda | Civic | Wagovan |
| 1990 | Honda | Civic | Base |
| 1990 | Honda | Civic | DX |
| 1990 | Honda | Civic | EX |
| 1990 | Honda | Civic | LX |
| 1990 | Honda | Civic | RT 4WD |
| 1990 | Honda | Civic | Si |
| 1991 | Honda | Civic | Base |
| 1991 | Honda | Civic | DX |
| 1991 | Honda | Civic | EX |
| 1991 | Honda | Civic | LX |
| 1991 | Honda | Civic | RT 4WD |
| 1991 | Honda | Civic | Si |
| 1992 | Honda | Civic | CX |
| 1992 | Honda | Civic | DX |
| 1992 | Honda | Civic | EX |
| 1992 | Honda | Civic | LX |
| 1992 | Honda | Civic | Si |
| 1992 | Honda | Civic | VX |
| 1993 | Honda | Civic del Sol | S |
| 1993 | Honda | Civic del Sol | Si |
| 1993 | Honda | Civic | CX |
| 1993 | Honda | Civic | DX |
| 1993 | Honda | Civic | EX |
| 1993 | Honda | Civic | LX |
| 1993 | Honda | Civic | Si |
| 1993 | Honda | Civic | VX |
| 1994 | Honda | Civic del Sol | S |
| 1994 | Honda | Civic del Sol | Si |
| 1994 | Honda | Civic | CX |
| 1994 | Honda | Civic | DX |
| 1994 | Honda | Civic | EX |
| 1994 | Honda | Civic | LX |
| 1994 | Honda | Civic | Si |
| 1994 | Honda | Civic | VX |
| 1995 | Honda | Civic del Sol | S |
| 1995 | Honda | Civic del Sol | Si |
| 1995 | Honda | Civic | CX |
| 1995 | Honda | Civic | DX |
| 1995 | Honda | Civic | EX |
| 1995 | Honda | Civic | LX |
| 1995 | Honda | Civic | Si |
| 1995 | Honda | Civic | VX |
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