Description
SEALCO SPRING BRAKE CONTROL VALVE – RELAY STYLE
PART NUMBER(S):
Fleet Products: 110800-G (New) | OE: Sealco 110800, Haldex 110800X, Meritor RSL110800
DESCRIPTION:
Model: Spring Brake Priority Control Valve with Integrated Relay
Vehicles: Tandem and tridem axle trailers with spring brake chambers (2800 cu in jumbo and/or 1400 cu in reservoirs)
• Supply Port: 3/8" NPT
• Control Port: 3/8" NPT
• Reservoir Port: 1/2" NPT
• Delivery Ports: (4) x 3/8" NPT
• Valve Type: Spring brake priority with relay feature for faster actuation
• Dimensions: Height 3.51", Width 2.88", Depth 4.05"
• Function: Provides supply air to release spring brakes while filling the service reservoir after ~80 PSI, prevents brake compounding, improves brake release speed
• Compliance: Meets FMVSS 121 and CMVSS 121
Applications:
Looking for a reliable spring brake control solution for multi-axle trailers? The Sealco 110800-G is a direct replacement for the Bendix SR-5 valve, engineered for spring brake priority systems on tandem and tridem axle trailers. It ensures the service reservoir reaches operating pressure before spring brake release—delivering smoother, balanced braking and quicker release performance for heavy-duty commercial fleets.
CROSS-REFERENCE(S):
Sealco 110800, 110502, 110515, 110705, Haldex 110800X, Meritor RSL110800, Euclid ESL110800, Automann 170.110800, Aurora SEA110800, Traction SEL110800, World American WA110800, Pro-Par PROVA-110800, GTA-110800, AV110800, SLC110800, TWD110800, E-SL110800, SA110380, SL110800, SL-110800, SC110800, SEA/110800, TV110800, TV110800TEC, K110800, S-20221, S20221, A100042366, MSV110800, MTRRSL110800, AMMTRRSL110800, HYU10000357, 12900423, 39540700, 43312007, 41903002, 680-110800, 680-110800SEA, RL3599DA02, IMIMXGTA-110800
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Direct replacement for Bendix SR-5 spring brake control valve.
✔ Replace as a complete unit—no internal service kits available (repair plugs 110502, 110515, 110705 optional).
✔ Verify port orientation and thread sizes before installation.
✔ Apply approved thread sealant to all NPT ports.
✔ Ensure compliance with FMVSS 121/CMVSS 121 after installation.
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Warranty Information
