Description
KN26010-G - RT-4 TRAILER SPRING BRAKE CONTROL VALVE
PART NUMBER(S):
Fleet Products: KN26010-G | Replaces OE: Haldex: KN26010, KN26010N, KN26010X, KN26010XBXR, N4305A, N4305AA, N4305C, N4305D | Meritor: R955KN26010N, R955KN26010X
DESCRIPTION:
Model: Haldex RT-4 Multi-Function Trailer Spring Brake Control Valve
Vehicles: Heavy-duty trailers using compatible spring brake and emergency brake systems
• Trailer Supply Port A: One 3/8" NPT
• Trailer Supply Port B: Plugged
• Trailer Control Port: One 3/8" NPT, positioned above Reservoir Port B
• Reservoir Port A: One 1/2" NPT
• Reservoir Port B: One 3/8" NPT
• Delivery Ports: Four 3/8" NPT
• Pressure Protection Closing Pressure: 70 PSI
• Function: Controls reservoir charging, parking brakes, and emergency spring brake application
• Emergency Operation: Applies the spring brakes when trailer supply pressure is lost
• System Use: Trailer spring brake systems requiring integrated relay and pressure-protection functions
Applications:
Designed for heavy-duty trailer air brake systems requiring integrated reservoir charging, parking brake control, and automatic emergency spring brake application. It is typically replaced when reservoir charging, spring brake release, emergency application, or air-pressure control becomes delayed or unreliable.
CROSS-REFERENCE(S):
T-A-KN26010, ZZKN26010, BENKN26010, 109615, 109615X, 109615XC1, 110147, 110171, 110180, 110180N, 110180X, 110190, 110190N, 110190X, 110191, 110230, 110315, 110315X, 110505, 110700, 110800, 1191982, 12360, 3516038, 65437, 85105237, A83335, A83336, A88802, A88812, AV26020, BBH-110147, BBH-110171, BBH-KN26010, BBH110147, BBH110171, BBHKN26010, BE065437, BENOR109615X, BH65437, BW065437, BW109615X, BW65437, BWBWR109615, BWR109615, BWR109615X, BX109615, BX109615XC1, BXR109615, BXR109615X, BXSR5, IKN26010, K033221, MBKN26010, OR109615X, OTR065437, P109615, PP01295, R109615, R109615X, R955065437, S-A530, SA530, SEA110171, SEA110191, SEA110700, SEA110800, TECTV26020, TV26020, TV26020TEC, 8235R955KN26010N, MDKN26010, TDAR955KN26010N, 8235R955KN26010X, TDAR955KN26010X
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm the active and plugged trailer supply ports before connecting the air lines.
✔ Verify the 3/8" control, 1/2" and 3/8" reservoir, and four 3/8" delivery connections.
✔ Mount with the trailer control port positioned above Reservoir Port B.
✔ Apply air-system-compatible sealant without allowing sealant to enter the valve.
✔ Charge and leak-test the system, then verify reservoir protection and emergency spring brake application.
Warranty Information
