Description
SEALCO RELAY VALVE (2 DELIVERY PORTS) – 4 PSI CRACK PRESSURE
PART NUMBER(S):
Fleet Products: 110410-G (New) | OE (Sealco): 110410, Euclid: ESL110410, Meritor: RSL110410
DESCRIPTION:
Model: Air Brake Relay Valve – 2 Delivery Ports
Vehicles: Heavy-duty trucks and commercial trailers (universal applications)
• Control Port: 3/8" NPT
• Reservoir Port: 1/2" NPT
• Delivery Ports: (2) x 3/8" NPT
• SAE J1860 Tag: RV040
• Nominal Crack Pressure: 4.0 PSI
• Mounting: Nipple mount (6003 or 6006)
• Type: Non-ABS, service/relay valve
• Alternate Version: Bracket-mount available as 110412
Applications:
Is this relay valve a fit for your truck or trailer air brake system? Yes—built to OE specifications, the Sealco 110410-G delivers consistent brake response and shorter lag times in dual-reservoir configurations. Ideal for tractors and trailers that need reliable, fast-acting relay function in heavy-duty service environments.
CROSS-REFERENCE(S):
110410, 103009, E-SL110410, 12341, 12346, KN28085, KN28085X, KN28510, KN28550, KN28551, RG2, RG5, 110197, 401201, 51442, A80070, AE78889, MID110410X, 170.110410, ESL110410, RSL110410, SEA110410, S-42415, 5396-KN28550, 754-110410, A80070, AE78889, 5453, 5454, 5461, 5462
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:
✔ Use correct NPT fittings for control, reservoir, and delivery ports to prevent leaks.
✔ Match the existing valve’s 4.0 PSI crack pressure to maintain braking balance.
✔ Not serviceable internally—replace as a complete valve assembly when worn.
✔ Ensure nipple mount (6003 or 6006) is properly tightened and aligned.
✔ For bracket-mounted setups, use compatible Sealco 110412 variant.
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Warranty Information
