Description
SPRING BRAKE VALVE (5) W/ANTI-COMPOUNDING (1/2")
PART NUMBER(S):
Fleet Products: 065439-G
OE: 065439, 65439, K033223
Automann: 170.065439
DESCRIPTION:
Model: SR-5 Spring Brake Valve with Anti-Compounding
Vehicles: Compatible with dual air brake system trailers
• Valve Type: SR-5 trailer spring brake control valve
• Function: Controls parking/emergency brake systems using trailer supply air
• System Integration: Designed for trailers with dual air brake systems; allows for single reservoir usage
• Regulatory Compliance: Meets FMVSS-121 requirements
• Anti-Compounding Feature: Prevents simultaneous application of service and spring brakes
• Spring Brake Charging Priority: Charges spring brakes prior to service release to prevent drag
Technical Specifications:
• Supply Port: 1/4" NPT
• Delivery Ports: Four (4) x 3/8" NPT
• Reservoir Port: 1/2" NPT
• Service Ports: Two (2) x 1/4" NPT
• Operating Temperature: -40°F to 200°F (-40°C to 93°C)
• Rated Closing Pressure: 70–97 PSI (depending on source; 70 PSI most cited)
• Weight: Approx. 2.95–3 lbs
• Material: Die-cast body, corrosion-resistant construction
• Mounting: Universal configuration
• Exhaust: Integrated exhaust port with dust shield
• Safety: Thread protection caps included for pre-install
Applications:
Designed for use in commercial trailers utilizing dual air brake systems. Provides controlled application and release of spring brakes via air supply from a single reservoir. Common in tandem axle and heavy-duty trailer systems requiring FMVSS-121 compliance.
CROSS-REFERENCE(S):
065439, 65439, BW065439, WBW065439, 175065439, OR109617, K033223, 109617, K033088, 0R109617X, 0R109617BXR, 108945, 401183, 401189, 745K03223, 745K033223, 745-065439, AV065439, BAN065439, BEN065439, BEN-065439, BER-065439, BX108945, BX109617, BXK033223, E-BN065439N, EM56380, EM56830, F224663, FC065439, K033223BXW, LBV-5683, R955065439, R955065439N, R955065439X, S21711, S-21711, TDAR955065439, TV065439, AM170065439, K065439, MID65439X, SM-3594, FN18077B, S6703-C, RL3599BD-A, TKL109617, TKL065439, MPGS-21711, ATX21711, 21711SS, VIP065439, 065439HTP, GTS21711, PS065439, TF065439, PAI56830, PAI5683, BER065439, BW108945, BW109617, BX065439, ZAC065439, AX065439, WA65439, BEN101622, 65439X, 65439P, BX108945, BX109617A 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 pneumatic-rated sealant for threaded connections only
✔ Ensure ports are correctly matched (Supply, Reservoir, Service, Delivery) during install
✔ Anti-compounding function must be verified post-install via air system test
✔ Do not over-tighten ports; refer to OEM torque specs if available
✔ Check for protective caps on all threads and remove before use
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