55-50/51SN Solenoid & Bracket Identification
To avoid solenoid damage, please return the core in the Sonnax box with formed foam packaging that contained the purchased remanufactured valve body.
Bracket Identification
Brackets are specific to code of valve body. The "No Code" valve bodies use the narrow bracket with small notch above SLS solenoid. The "A", "B", and "C" coded valve bodies use the wide bracket with a large notch above the SLS solenoid.
Solenoid Identification
No code or code A valve bodies have the SLT and SLS electrical connector facing up. Code B or C valve bodies have the SLT and SLS electrical connectors facing down.
| Narrow Bracket and Upward-Facing Connectors | Wide Bracket and Downward-Facing Connectors |
|---|---|
 |  |
Solenoid Wire Color Chart
| Solenoid | Connector Color | Wire Color |
|---|---|---|
| SLU | Black | 1 Green, 1 Brown |
| SLT | Blue | 1 Green, 1 Gray |
| SLS | Green | 1 Blue, 1 Red |
| S1 | Black | White |
| S2 | Black or Gray | Black |
| S3 | Gray | Yellow |
| S4 | Blue or Green | Purple or Red |
| S5 | Green, Red or Gray | Blue or Black |
Related Units
Related Parts
Required
Recommended
55-50SN, 55-51SN
Remanufactured Linear Solenoid Kit 59947-68K
Early/Short design. Also fits AF23/33 and RE5F22A units.
-
Helps cure:
- Flare shifts
- Bang shifts
- Shift concerns
- Harsh Forward
- Harsh Reverse
- No lockup
- Harsh TCC apply
- Low TCC apply pressure
- Soft upshifts
Required
Recommended
55-50SN, 55-51SN
Remanufactured Linear Solenoid Kit 59947-69K
Early/Long design. Also fits AF23/33 and RE5F22A units.
-
Helps cure:
- Flare shifts
- Bang shifts
- Shift concerns
- Harsh Forward
- Harsh Reverse
- No lockup
- Harsh TCC apply
- Soft upshifts
Required
Recommended
55-50SN, 55-51SN
Remanufactured Linear Solenoid Kit 59947-70K
Late/Long design. Also fits AF23/33 and RE5F22A units.
-
Helps cure:
- Flare shifts
- Bang shifts
- Shift concerns
- Harsh Forward
- Harsh Reverse
- No lockup
- Harsh TCC apply
- Soft upshifts
Required
Recommended
55-50SN, 55-51SN
Remanufactured Valve Body AW55GE
GM, Early, “A” or No Letter Casting
Required
Recommended
55-50SN, 55-51SN
Remanufactured Valve Body AW55GL
GM, Late, “B” or “C” Casting, without B5 Spring
Required
Recommended
55-50SN, 55-51SN
Remanufactured Valve Body AW55GMLSP
GM, ’05-Later, with B5 Spring
Required
Recommended
55-50SN, 55-51SN
Remanufactured Valve Body AW55NL
Volvo/Nissan, ’05-Later, with B5 Spring
Required
Recommended
55-50SN, 55-51SN
Remanufactured Valve Body AW55VE
Volvo, Early, “A” or No Letter Casting, without B5 Spring
Required
Recommended
55-50SN, 55-51SN
Remanufactured Valve Body AW55VL
Volvo/Nissan, Late, “B” or “C” Casting, without B5 Spring
While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.