Product Description
| Trailer Supply (A): 3/8" Trailer Supply (B): 3/8" Trailer Control: 3/8" Reservoir (A): 1/2" Reservoir (B): 3/8" Delivery (4): 3/8" PPV Closing Pressure: 55 PSI Notes: Cover as shown Description: Meets all FMVSS-121 trailer requirements for a spring brake control and other regulations prior to Oct. 8, 1992, Interchangeable with competitive units, Used on trailers to control both parking and emergency brake functions, Controls reservoir charging, Applies emergency (parking) brakes upon loss of trailer supply (emergency) line pressure |
