HWH® PARTS MANUAL
QUICK REFERENCE GUIDE
for
"CONTROL UNITS  |  AIR"
used in "Air Leveling Systems", "Active Air Suspension Systems"
& "Environmental Air Seal Systems for Slide-Outs"
(Filename:  ml11428qr_010.xls) (Revised:  07MAR16)
  The following is a list of control units (manifold assemblies) in numeric order by "Existing Part #". 
  Commonly replaced components are listed in columns beneath the
REPLACEMENT PARTS heading. 
 
CLICK on the number indicated in the PARTS PAGE column to see a diagram of the control unit and a listing
     of its replaceable components.
 
* - B indicates that the control unit has a manual travel bypass
EXISTING CONTROL UNIT REPLACEMENT PARTS PARTS
PAGE
EXISTING PART # DESCRIPTION * CONTROL
UNIT
AIR SOLENOID
VALVE
PRESSURE
SWITCH
VACUUM SWITCH
AP1460 3 VALVE MANIFOLD   RAP1940 (3)     MR05.2500
AP1461 6 SOL VALVE MANIFOLD   RAP1940 (6)     MR05.2700
AP1506 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6)  RAP1720-20 PSI   MR05.3325
AP1875 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20PSI   MR05.3375
AP2066 3 SOL VALVE MANIFOLD   RAP1940 (3)     MR05.2600
AP2133 6 SOL VALVE MANIFOLD   RAP1940 (6)     MR05.2900
AP5598 3 SOL VALVE MANIFOLD   RAP6059 (3)     MR05.2000
AP6007 3 SOL VALVE MANIFOLD   RAP6059 (3)     MR05.2000
AP6008 3 SOL VALVE MANIFOLD   RAP6059 (3)     MR05.2000
AP6009 3 SOL VALVE MANIFOLD   RAP6059 (3)     MR05.2000
AP6393 3 SOL VALVE MANIFOLD   RAP1940 (3)     MR05.2500
AP6394 6 SOL VALVE MANIFOLD   RAP1940 (6)     MR05.2700
AP8398 6 SOL VALVE MANIFOLD   RAP1940 (6)     MR05.2900
AP8399 3 SOL VALVE MANIFOLD   RAP1940 (3)     MR05.2600
AP9278 6 SOL VALVE MANIFOLD
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90570 -85 PSI   MR05.3300
AP9283 6 SOL VALVE MANIFOLD
2-10 PSI PRESSURE SWITCH
  RAP1940 (6) PRESSURE SWITCHES BY FORETRAVEL   MR05.3000
AP10487 6 SOL VALVE MANIFOLD   RAP1940 (6)     MR05.2800
AP11239 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3400
AP11240 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3350
AP11585 6 SOL VALVE MANIFOLD
2-35 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90580-35 PSI   MR05.3500
AP14168 6 SOL VALVE MANIFOLD
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90570-85 PSI   MR05.3300
AP14560 6 SOL VALVE MANIFOLD
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90388-100 PSI   MR05.3305
AP15554 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3600
AP15602 6 SOL VALVE MANIFOLD - B
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90388-100 PSI   MR05.3302
AP15603 6 SOL VALVE MANIFOLD-B   RAP1940 (6)     MR05.2920
AP16635 6 SOL VALVE MANIFOLD-B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3650
AP16636 6 SOL VALVE MANIFOLD-B
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90388-100 PSI   MR05.3310
AP16848 4 SOL VALVE MANIFOLD   RAP1940 (4)     MR05.3900
AP16864 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3700
AP17485 6 SOL VALVE MANIFOLD
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90570-85 PSI   MR05.3295
AP18657 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3320
AP18658 6 SOL VALVE MANIFOLD
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP90570-85 PSI   MR05.3290
AP19985 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6)  RAP1720-20 PSI   MR05.3610
AP19986 6 SOL VALVE MANIFOLD - B
1-100  PSI PRESSURE SWITCH
  RAP1940 (6) RAP90388-100 PSI   MR05.3304
AP20078 2 VALVE MANIFOLD
(for Environmental Air Seal)
RAP91410
OBSOLETE
RAP1940 (1)
RAP92145 (1)
    MR05.4800
AP23200 2 VALVE MANIFOLD
(for Environmental Air Seal)
RAP91669
OBSOLETE
RAP1940 (1)
RAP92145 (1)
    MR05.4801
AP23327 6 SOL VALVE MANIFOLD
2-20 PSI PRESS. SW.
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3710
AP24552 2 VALVE MANIFOLD
(for Environmental Air Seal)
RAP92176
OBSOLETE
RAP1940 (1)
RAP92145 (1)
    MR05.4802
AP24553 6 SOL VALVE MANIFOLD
2-10 PSI PRESSURE SWITCH
  RAP1940 (6) RAP92144-10 PSI   MR05.3711
AP25184 6 SOL VALVE MANIFOLD
2-35 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP90989 (6) RAP90580-35 PSI
RAP90570-85 PSI
  MR05.3712
AP25410 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (4)
RAP90989 (2)
RAP1720-20 PSI   MR05.3701
AP25451 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3713
AP25452 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3714
AP25473 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3703
AP25507 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3715
AP25508 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3716
AP26195 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3717
AP26552 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3312
AP26553 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6)  RAP1720-20 PSI   MR05.3706
AP26571 6 VALVE MANIFOLD
1 - 5 IN HG VACUUM SWITCH
(for Environmental Air Seal)
RAP92177 RAP1940 (1)
RAP92145 (1)
  RAP92183 MR05.4803
AP28527 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3718
AP28528 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3719
AP28925 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720 - 20 PSI
RAP90570-85 PSI
  MR05.3720
AP28926 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI         MR05.3721
AP30116 8 SOL VALVE MANIFOLD
2-20  PSI PRESSURE SWITCH
  RAP1940 (4)
RAP90989 (4)
RAP1720-20 PSI   MR05.4202
AP30284 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20PSI   MR05.3722
AP30285 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720 - 20 PSI
RAP90388-100 PSI
  MR05.3723
AP30503 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3709
AP30879 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3601
AP30880 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90388-100 PSI
  MR05.3602
AP31932 7 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (4)
RAP90989 (2)
RAP92145 (1)
RAP1720-20 PSI   MR05.4300
AP31935 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-100 PSI PRESSURE SWITCH
  RAP1940 (2)  RAP90989 (2)   RAP92147 (2) RAP1720-20 PSI
RAP90388-100 PSI
  MR05.4301
AP31954 4 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (2)
RAP90989 (2)
RAP1720-20 PSI   MR05.3905
AP32798 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3724
AP32799 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20PSI   MR05.3725
AP32990 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3726
AP33329 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3727
AP33337 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3728
AP33338 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3729
AP34184 2 VALVE MANIFOLD
(for Environmental Air Seal)
RAP92178
OBSOLETE
RAP1940 (1)
RAP92145 (1)
    MR05.4804
AP34962 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3607
AP34963 4 SOL VALVE MANIFOLD      RAP1940 (4)     MR05.3901
AP35017 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3603
AP35018 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESS. SW.
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90388-100 PSI
  MR05.3604
AP35019 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3605
AP35020 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90388-100 PSI
  MR05.3606
AP35021 8 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (4)
RAP90989 (4)
RAP1720-20 PSI     MR05.4200
AP35032 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (2)
RAP90989 (2)
RAP92147 (2)
RAP1720-20 PSI
RAP90570-85 PSI
  MR05.4320
AP35974 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-100 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90388-100 PSI
  MR05.3730
AP36620 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (4)
RAP90989 (2)
RAP1720-20 PSI   MR05.4350
AP36968 4 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (2)
RAP90989 (2)  
RAP1720-20 PSI   MR05.3907
AP36994 4 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (2)
RAP90989 (2)
RAP1720-20 PSI   MR05.3910
AP39844 7 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (4)
RAP90989 (2)
RAP92145 (1)
RP92146
PRESS. TRANSDUCER
  MR05.4600
AP39952 4 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4500
AP39953 6 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RAP92147 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4550
AP42172 6 SOL VALVE MANIFOLD
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3731
AP42495 7 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (4)
RAP90989 (2)
RAP92145 (1)
RP92146
PRESS. TRANSDUCER
  MR05.4601
AP42496 6 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RAP92147 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4551
AP42498 4 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4501
AP43305 4 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4502
AP43492 5 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RAP92145 (1)
RP92146
PRESS. TRANSDUCER
  MR05.4603
AP43530 5 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RAP92145 (1)
RP92146
PRESS. TRANSDUCER
  MR05.4604
AP44403 4 SOL VALVE MANIFOLD
ACTIVE AIR
2 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4502
AP44404 6 SOL VALVE MANIFOLD
ACTIVE AIR
3 PRESS. TRANSDUCERS
  RAP1940 (2)
RAP90989 (2)
RAP92147 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4552
AP45392 NO INFORMATION
AP45744 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3727
AP45745 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3732
AP46964 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3733
AP48499 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI   MR05.3734
AP48500 6 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
1-85 PSI PRESSURE SWITCH
  RAP1940 (6) RAP1720-20 PSI
RAP90570-85 PSI
  MR05.3735
AP50472 7 SOL VALVE MANIFOLD - B
2-20 PSI PRESSURE SWITCH
  RAP1940 (4)
RAP90989 (2)
RAP92145 (1)
RAP1720-20 PSI   MR05.4203
AP51156 4 SOL VALVE MANIFOLD
ACTIVE AIR - 24 VOLT
2 PRESS. TRANSDUCERS
  RAP93274 (2)
RAP93275 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4503
AP51157 6 SOL VALVE MANIFOLD
ACTIVE AIR - 24 VOLT
3 PRESS. TRANSDUCERS
  RAP93274 (2)
RAP93275 (2)
RAP93276 (2)
RP92146
PRESS. TRANSDUCER
  MR05.4553
AP51849 4 SOL VALVE MANIFOLD   RAP1940 (2)
RAP90989 (2)
    MR05.3902