Description
103081-G RELAY VALVE (MODULATING R7 TYPE)
PART NUMBER(S):
Replaces OE: Automann 170.103081 | Bendix 103081, 103081B1, 103081BXW, 103081CX, 103081N, 103081NP, 103081P, 103081R, 103081RX, 103081X, 102144, 283932, 5008552, 800969, S-A143, SA143
DESCRIPTION:
Model: Relay Spring Brake Valve – R7 Modulating Type
Vehicles: Compatible with heavy-duty air brake systems in trucks, trailers, and buses
• Application: Spring brake modulation systems
• Supply Port: 1 × 3/8 in NPT
• Delivery Ports: 2 × 3/8 in NPT
• Control Port: 1 × 1/4 in NPT
• Balance Port: 1 × 1/4 in NPT
• Release Pressure: 95 PSI
• Actuation: Pneumatic, foot valve controlled
• Mounting: Standard flange
• Material: Compact metal valve body
• Performance: Modulates spring brake application during rear axle service brake failure
• Features: Dual-delivery design, fail-safe operation, OEM-grade direct replacement
• Compatibility: Bendix, Meritor, Kenworth, Peterbilt, Mack, Volvo, Freightliner, Navistar systems
Applications:
This R7-style relay spring brake valve is engineered for use in medium-to-heavy-duty vehicles requiring fail-safe brake actuation under service brake failure conditions. The valve enables modulated spring brake control through the foot valve, maintaining safety and stopping performance. OEM fitment includes models from Mack, Volvo, Freightliner, Navistar, and others.
CROSS-REFERENCE(S):
0R103081, 0R103081BXR, 0R103081X, 04-22-6020, 20-QE-3295, 034023, 34023, 14401, 1504913, 3096292, 34590, 3561-693-C91, 745-103081, 745103081N, AM170103081, AV103081, BA143GRP, BAR103081, BEN-103081, BEN103081N, BER-103081, BNS103081N, BW102144, BW103081, BW103081N, BW103081X, BW283932, BW5008552, BW800969, BX102144, BX103081, BX103081BX, E-BN103081N, EBN103081N, EBN103081X, EM34590, H-30260, LMV-3459, R955103081, R955103081N, R955103081X, TDAR955103081N, TR103081, TV103081, WBW-103081, ZAC103081
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:
✔ Use standard flange mount for direct replacement
✔ Confirm proper port orientation during installation
✔ Integrates with standard 3/8″ and 1/4″ NPT pneumatic fittings
✔ Designed for dual delivery spring brake systems
✔ Always verify release pressure (95 PSI) and test for air leaks post-installation
✔ No special tools required for standard flange install
Warranty Information
