__53399.1750693765.jpg?c=2 "103081-g relay valve for truck brake systems, 7-port modulating r7 valve, 95 psi release, dual delivery for heavy-duty use")
__53399.1750693765.jpg?c=2 "103081-g relay valve for truck brake systems, 7-port modulating r7 valve, 95 psi release, dual delivery for heavy-duty use")
__53399.1750693765.jpg?c=2 "103081-g relay valve for truck brake systems, 7-port modulating r7 valve, 95 psi release, dual delivery for heavy-duty use")
Product Description
103081-G RELAY VALVE (MODULATING R7 TYPE)
PART NUMBER(S):
Fleet Products: 103081-G
OE: 103081, WBW-103081, BNS103081N
Automann: 170.103081
DESCRIPTION:
Model: Relay Spring Brake Valve – R7 Modulating Type
Vehicles: Compatible with heavy-duty air brake systems in trucks, trailers, and buses
• Valve Type: Modulating relay valve (R7 type)
• Application: Spring brake modulation in case of service brake failure
• Actuation Type: Pneumatic, foot valve controlled
• Supply Port: 1 × 3/8″ NPT
• Delivery Ports: 2 × 3/8″ NPT
• Control Port: 1 × 1/4″ NPT
• Balance Port: 1 × 1/4″ NPT
• Release Pressure: 95 PSI
• Mounting: Standard flange
• Function:
• Modulates spring brake application using foot valve during rear axle service brake loss
• Ensures controlled spring brake release and reapplication
• Unique Features:
• Dual-delivery design for efficient air flow
• Fail-safe system integrity in partial failure
• Compact and durable construction for harsh operating environments
• OEM-grade component; direct-fit for R7 modulating applications
• System Fitment:
• Designed for medium to heavy-duty trucks, trailers, and buses
• Used by Kenworth, Peterbilt, Mack, Volvo Trucks, Freightliner, and Navistar via OEM numbers
• Interchangeable with Bendix, Meritor, and other major air brake system manufacturers
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):
103081, 0R103081, WBW-103081, BNS103081N, 103081BXW, 103081X, 103081R, 103081N, 103081NP, 103081P, 103081CX, 103081RX, EBN103081X, BX103081BX, BX102144, BW103081X, BW103081, BW103081N, BW102144, 0R103081X, 0R103081BXR, BEN-103081, 102144, 283932, 5008552, 800969, BW283932, BW5008552, BW800969, R955103081, R955103081N, R955103081X, TDAR955103081N, 20-QE-3295, 745-103081, 3096292, 3561-693-C91, BAR103081, BEN103081N, BX103081, ZAC103081, 34590, EM34590, LMV-3459, 034023, 34023, 14401, TV103081, 745103081N, AM170103081, AV103081, BER-103081, S-A143, SA143, E-BN103081N, TR103081, 04-22-6020, 1504913, BA143GRP, 103081B1, H-30260
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
SOLD AS NEW
Brand new and ready to install, with OEM Grade Reliability
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, Call: 1-877-243-0442 | Email: sales@fleet-products.com
WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?
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- Trusted by fleets, mechanics, and B2B partners across North America
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