Description
RELAY VALVE (R-14H Style)
PART NUMBER(S):
Fleet Products: 103028-G | OE: BWW103028, 745103028, 0680103028, KN28071, KN28072, KN28073, KN28074 | Automann: 01-BX-103028, 170103028 | Bendix: 103028 | Bepco Inc: 103028 | Haldex: 103028RX | Freightliner: BW103028N | Mack: 745103028N | Meritor: R955103028N | PAI: EM36420 | Wabco: R955103028 | LRV-3642
DESCRIPTION:
Model: R-14 Relay Valve (Vertical Mount)
Vehicles: Compatible with a wide range of trucks and trailers
- Supply Port: (1) 1/2” P.T.
- Delivery Ports: (4) 1/2” P.T.
- Service Ports: (1) 1/4” P.T.
- Balance Ports: (1) 1/8” P.T.
- Opening Pressure: 4.0 PSI
• Crack Pressure: 4.0 PSI
• Temperature Range: –40°F to 200°F (–40°C to 93°C)
• Mounting: Vertical, 4 slotted bolt holes (0.96" x 0.40"); balance port under exhaust cap
• Cover: Rotatable 90° for installation flexibility
Applications:
Used in commercial vehicle air brake systems for fast relay of service brake signals and spring brake control. Directly replaces Bendix R-14 valves and equivalents. Designed for use in trailer and tractor air systems requiring precise service pressure modulation.
CROSS-REFERENCE(S):
103028, BWW103028, 745103028, 0680103028, 01-BX-103028, E-BN103028X, 0R103028, FS103028N, 103028N, 103028NP, 103028P, 103028CX, 109270, 65430, 0R103028BXR, BW065430, BW109270, BX065430, BX109270, OR103028, OR103028X, BEN-103028, 103028RX, 103028X, R955103028, , TDAR955103028N, 103028BXR, 103028BXW, 034028, 34028, 3642, 36420, EM36420, LRV-3642, 170.103028, 745065430, 745103028N, AM170103028, 20QE4133A, 3915334, 14019, 14399, TV103028, 401170, 9732880010, S-8255A, S8255A, BER-103028, BAN103028, BX103028, NS103028, 30066, DP30066, FC103028, K103028, TR103028, ACA-A5528700, 0587-103028P, B8255AGRP, 12900006, 4L-11-11, AV103028, MBW103028, RH100359, M-103028, M-28510, GTA-103028, H-30267
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Mount vertically using included bracket and specified bolt holes
✔ Confirm all port connections align with NPT threading standards
✔ Verify 4.0 PSI crack pressure for compatibility with existing air systems
✔ Balance port is located under exhaust cover; do not block
✔ Torque specs are not published; follow OEM air brake valve tightening guidelines
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Warranty Information
