Description
RELAY VALVE (12)
PART NUMBER(S):
Fleet Products: 065303-G, 065303
OE: 108281, 1684489C91, 1684488C91, 1685644C91, 85103904, R955065303N, S-17743
Automann: 170.065303
DESCRIPTION:
Model: R-12 Relay Valve (Vertical Mount)
Vehicles: Compatible with trucks, trailers, buses, and tractors
• Supply Ports: Two (2) x 1/2-14 NPT
• Delivery Ports: Four (4) x 3/8-18 NPT (2 vertical, 2 horizontal)
• Control Port: 1/4-18 NPT
• Crack Pressure: 4.0 PSI
• Mounting: Vertical mount with universal bracket
• Mounting Hole Diameter: 0.52"
• Center-to-Center Distance: 2.61"
• Body Configuration: 2 Supply, 4 Delivery
• Operating Temperature Range: -40°F to 200°F (-40°C to 93°C)
• Weight: 2.78 lbs (1.26 kg)
• Exhaust Port: Dust-shielded
• Function: Air-operated relay valve for applying and releasing rear axle service or spring brakes
Applications:
Designed for air brake systems in long wheelbase heavy-duty trucks, trailers, and buses. The R-12 relay valve speeds up brake application and release by relaying air from a supply reservoir located closer to the rear axle. Direct OE-grade replacement for Bendix 065303 series, with universal port orientation and field-serviceable valve cartridge.
CROSS-REFERENCE(S):
065303, 65303, 060-065303, 108281, 108343, 108968, 109839, 5002150, 1684488C91, 1684489C91, 1685644C91, 2004816C91, 2032514C91, 3508846C91, ZAC065303, K047646, KO47646, WBW065303, BNW065303, BEN065303, W:BW-065303, 5019003, 401274, 401820, 65303X, H065303X, MID65303X, 065303BXW, 65303XM1D, 745-065303, 85103904, AV065303, BAN065303, BX065303, R955065303N, R955065303X, S-17743, TLA65303, TV065303, TWDBEN065303, WA65303, EBN065303N, K044963, BER-065303, 3564370C91, BW065303, BW108281, BX108281, BEN-065303, 14390, 65303P, FLTBV303, BER-065303, S17743, BW 065303, BW065303
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 the included bracket and ensure ports align correctly
✔ Use thread sealant rated for pneumatic NPT connections
✔ Ensure 4.0 PSI crack pressure compatibility with system configuration
✔ Relay valves should be mounted as close as possible to service chambers
✔ Replace worn mounting grommets or hardware during installation
WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?
• Canadian-owned since 1985
• Trusted by fleets, mechanics, and B2B partners across North America
• Fast, Reliable Shipping Across North America
• Competitive pricing with Core Return Refunds
• Price Match Guarantee | Find a better price? We'll beat the difference by 10%!
Warranty Information
