Description
FF-2 RELAY VALVE
PART NUMBER(S):
Fleet Products: KN28601, KN28601-G (New) | Replaces OE: Automann 170.KN28601, AV229635, AV28601, AVKN28601, AM170229635 | Bendix 101993, 229635, 229635B1, 229635N, 229635P, 229635R, 229635RX, 229635S, 229635X, 276566, 276566B1, 276566N, 276567, BEN229635N, BBH-229635CX, BBHRB276566, BBHRB28600, BH229635 | Dayton AV229635, AV28601, AVKN28601 | Euclid EMDKN28601, EMDKN28601X | Haldex KN28601, KN28601RX, KN28601X, KN-28601, HAL-KN28601, HKN28600, RKN28601, KN28600, KN28600P, KN28600X | Meritor R955KN28601X | PAI EM40740, FTV4075, PAFTV4075 | Tectran TV28601 | Torque TRKN28601 | Velvac 401221, 401221TRA, 401222
DESCRIPTION:
Model: FF-2 Full-function relay spring brake valve
Vehicles: Compatible with various heavy-duty truck and trailer applications
• Reservoir Port: 1/2" NPT
• Supply Port: 3/8" NPT
• Delivery Ports: 4 x 3/8" NPT
• Control Port: 1/4" NPT
• Spring Brake Ports: 2 x 3/8" NPT
• Mounting: Heavy-wall mounting nipple
• Crack Pressure: 3.0 PSI
• Function: Combines relay valve, spring brake quick release valve, pressure protection, and 2 one-way check valves
• Design: Built-in service and spring brake quick release, Brake priority logic for spring brake release, Spring brake compounding protection
CROSS-REFERENCE(S):
N4304A, N4304AB, N4304AE, N4304AJ, N4304BB, N4304DA, N4304DT, 28601, 28601P, 28601X, 12352, 12352X, 10810486, 110742, 110744, 1113099, 12352X, 1284972, 1321058, 1360242, 1360249, 1361679, 170229635, 17376004, 1802597, 20001P, 212655014, 217005018, 2530004859416, 255004, 255005, 287334, 300479CC, 3005453, 304AB, 3060509, 3060636, 3061136, 311698, 3116981, 3267700, 334152, 3507194, 3507376, 3919797, 39300584, 39350054, 40750, 40969, 416.00.3804.778, 416003804778, 4622767, 4820005222074, 5012701, 517429, 53101201, 5340259028, 538035, 5396-KN20001, 5396-KN28600, 5396-KN28601, 5396KN28601X, 550069, 619502C92, 640136, 655530, 70311698, 71230547, 745229635N, 745276566N, 767653010823, 767653010830, 77024-11, 770241, 770243, 770246, 79014056, 800952, 801175616, 801175617, 825638, 90000606, 90016369, 900219A, 921060, 98005606, 99410118, 99410120, 99410538, 99410818, 9990000094, A68365, ACA05765700, ACA06765700, ACE009754001, ACF009460001, AE38210, AE770241, AE770243, AE770246, AKA5622, AYD20791, BGIKN28601, BGKN28601X, BVKN28601, BWKN28601X, C109501, DKN28601, GTA28601, IKN28601, K114111, K29571, LCV3691, MBRKN28601, MIKN28601, MIKN28601X, MSMDKN28601X, PP03320, RB28600, S-22188, S22188, ZZKN28601, 670-S22188
A cross-reference listing means this part may be a compatible replacement for these part numbers
IMPORTANT INSTALLATION NOTES:
✔ Ensure all ports are connected to the correct supply, reservoir, control, and delivery lines
✔ Tighten fittings per OE torque spec
✔ Use thread sealant compatible with air brake systems
✔ Inspect O-rings and mounting hardware before installation
✔ Mount vertically where possible to support drainage and optimal function
✔ Do not reuse damaged or contaminated fittings during install
Warranty Information
