Description
RELAY EMERGENCY VALVE (CHARGING STYLE, RATIO FEATURE – 4.5 PSI CRACK)
PART NUMBER(S):
Fleet Products: 110205-G (New) | OE: Sealco 110205, 110205X, 110205N, 110205RX, 110205SEA, 110205P, 110470, 110200, 110200X, SEA110205, SEA110205X, SEA110470, SEA110470X, SL110205, SL110470 | Meritor RSL110205, RSL110205X, MTRRSL110205, MTRRSL110205X, MTRRSL110470X | Euclid / Rockwell ESL110205, ESL110205X, ESL110470X, E-SL110205, E-SL110205X, E-SL110470X | Automann 170.110205, AM170110205 | SAF-Holland 55110205 | Mack 802552, PAP802552 | World American WA110205 | Tectran 14412, TV110205, TV110205TEC | Power Products 110205P | Genuine Newstar S20156, SEA-110205
DESCRIPTION:
Model: Relay Emergency Valve – Charging Type with Ratio Feature
Vehicles: Pre-FMVSS-121 truck and trailer brake systems
• Supply Port: 3/8" NPT
• Control Port: 3/8" NPT
• Reservoir Port: 3/4" NPT
• Delivery Ports: 4 x 3/8" NPT
• Crack Pressure: 4.5 PSI
• Ratio: 1:1 normal braking; 1:1.5 boost for <0.01 sec during panic stops
• Function: Fast-acting relay between reservoir and service chambers
• Compatibility: Sealco 110205 and equivalent 4.5 PSI applications
CROSS-REFERENCE(S):
11675, 12350, 229434, 277446, 39540285, 680-110205, 745-110205X, 7546-110205, 745-277446, 6152-55110205, 034069, A99036, AF71890, AV110205, AV-110205, BAR110205X, BEP110205X, BEPCO110205X, BWP M-110205, BX110205X, BW110205X, BW R110205X, BW 110205X, DAYTON AV110205, GN110205, GDX110205, GTA-110205, GTA110205, H110205X, HDX110205X, KN30000, KN30010, KN30300, KN30400, K110205, LEV-3640, MSV110205, MID110205X, MID110470X, MJ110205, N3714J, RB110205, RB-110205, RL3527FC, S-20156, S20156, SA110205, SC110205, SE0110205, SLC110205, SL-110205, SL-110470, TDARSL110205, Torque TR110205, TR110205, TKL25011A, VTC-01562, ZZ110205X, PROVA-110205, Freightliner TDARSL110205, STT 110205, A100042352
A cross-reference listing means this part is a suitable replacement for the part numbers listed.
IMPORTANT INSTALLATION NOTES:
✔ Designed for heavy-duty trailer or truck air systems with 4-port delivery and 3/8" NPT control/supply.
✔ Charging-type valve fills reservoirs directly from supply—ensure proper system compatibility.
✔ Do not use on converter dollies, turntable axles, or lift axles.
✔ Verify 4.5 PSI crack pressure and ratio function before installation.
✔ KN30400 and KN30400X are alternative replacements for this configuration.
✔ Plug unused ports and use appropriate NPT thread sealant during installation.
Warranty Information
