11.
Fuller
Push/Pull
Shift Valves
Control Modules
Knobs (MBS)
KN20900
KN20901
KN20902
KN20903
Red
Yellow
Blue
Yellow
Trailer Air Supply
Parking Brake
Tractor Parking
System Park
A3546N (QPR)
A3991 (QPR)
101437N (QPR)
KN20900
KN20901
KN20902
Brake Valves (Foot Valve)
286171N E6
(BND)
(QPR)
Sup
4-3/8" PT
Del
4-3/8" PT
All Ports are 1/4 NPTF
•One Piece Construction-No Center
Leakage.
•Made of Durable Engineering Grade
Composite (EGC).
Non-rotating knobs are always right
side up.
SR-4 Trailer Spring Brake Valve
MV-2
KN20615
Midland Manifold
Dash Valve
MV-2
KN20903
(BND)
PRIOR
(QPR)
Res. 1 Res. 2 Delivery Delivery Aux Exhaust
Tractor Trailer Supply
1/4" 1/4" 1/4" 1/4" 1/4" 1/4"
Check Valve
Surface Material
•Plastic-old style
•Aluminum- new
Aux Port
Trailer Sup
Secondary
Sup
Tractor
Del
Trailer
Sup
Aux
Port
Secondary
Sup
Exhaust
Port
Primary
Supply
Tractor Del
229501 E2
(QPR)
Sup
2-1/2" PT
DEL
4-1/2"PT
Aux
2-1/4" PT
Air Brake Valves Cont.
101112N (QPR)
Sup
1/4" PT
DEL
4-3/8" PT
1-1/4" PT
Res
3/4" PT
SERV
1/4" PT
Part# A B C D
A78880N 3/8" 3/8" 3/8" 3/8"
A78889N 3/8" 1/2" 3/8" 3/8"
A78880N (QPR)
A104001N RT4
Sup
3/8" PT
DEL
4-3/8"PT
Res
1-1/2" PT
1-3/8" PT
CNTRL
3/8" PT
A98730 (QPR)
Sup
3/8" PT
Res. 1
1/2" PT
Res. 2
3/8" PT
DEL
4-3/8" PT
CNTRL
3/8" PT
Relay Valves
A71890N (QPR)
DEL
4-1/4" PT
SERV
1/4" PT
Emergency
1/4" PT
Crack
Pressure
4.5 +/- 1
Solenoid Valves
69973-12 12 Volt
(QPR) Cummins
Fuel Solenoid
Midland
Solenoid
(MBS) KN68230
All Ports are 1/8-27 NPTF.
•Bulkhead MT-7/8"
•Made of Durable Engineer-
ing Grade Composite (EGC).
Pop Pressure-35=/- 10 PSI
KN20021
(MBS)
(BND)
Part#
800516-MV3
800517-MV3
800519-MV3
www. bendix.com
1-800-247-2725
www.haldex.com
(816)891-2470
www. priorreman.com
1-833-692-6036
(MBS)
BENDIX
HALDEX
