110415 Air Brake Service Relay Valve 4-Port, 4 PSI | Nipple Mount (3/4" Res Port) | For Truck & Tandem Axle Trailer Brakes | Replaces Sealco 110415X, Meritor RSL110415
HEAVY-DUTY PORT CONFIGURATION - Features a vertical, nipple-mounted design with the required heavy-duty port sizes: (1) 3/4" NPT Reservoir Port, (1) 3/8" NPT Control Port, and (4) 3/8" NPT Delivery Ports. Ideal for systems with four brake chambers.
WIDE CROSS-REFERENCE FITMENT - Premium aftermarket replacement for key industry parts, including Sealco 110415 / 110415X, Meritor RSL110415, Euclid ESL110415, Haldex 110415X, and many others (see description for full list).
HIGH-SPEED BRAKE ACTUATION - Functions as a critical air brake relay station, instantly applying and releasing air pressure to the rear service brake chambers on trucks and tandem-axle trailers. Minimizes brake lag for safer, synchronized stopping.
PRECISE 4.0 PSI CRACK PRESSURE - Engineered with a 4.0 PSI (RV040) nominal cracking pressure to ensure the valve opens reliably and quickly under specific air conditions, optimizing overall air brake system performance and responsiveness.
STURDY & PREMIUM QUALITY - Built with a robust metal body for superior performance under extreme pressure and operating conditions.