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Hummer Knowledge Base

The Hummer Knowledge Base

Sensors and Switches:


Dashboard Switch - HVAC Rear Blower Off/Low/High (1994-2003)

Supplier Part/Product Number Verified
AM General 5743502 HML
EATON ** TBA HML
International Trucks TBA HML


Dashboard Switch - Dome/Cargo lights Off/Dome-On/All-On (1996-?)

Supplier Part/Product Number Verified
AM General 1-position
5939549
HML
AM General 2-position
6000895
HML
EATON ** 8951K882 -- 9536 HML
International Trucks TBA HML


Dashboard Switch - Headlights Off/Parking/On (1996-?)

Supplier Part/Product Number Verified
AM General 5939547 HML
EATON ** 8951K883 -- 9607 HML
International Trucks TBA HML


Dashboard Switch - Dashboard Lights Dimmer (1996-?)

Supplier Part/Product Number Verified
AM General 5939548 HML
C-H ** 7654321 -- 9609 HML
International Trucks 1661480c3 HML


Dashboard Switch - Wipers Off/Low/High (1996-?)

Supplier Part/Product Number Verified
AM General 5939550 HML
EATON ** 8951K884 -- 9536 HML
International Trucks TBA HML


Dashboard Switch - Wash/Intermittent Wipers (1996-?)

Supplier Part/Product Number Verified
AM General 6000036 HML
C-H ** 7654321 -- 9823 HML
International Trucks TBA HML


Oil Pressure Switch/Sensor (1992-1995 NA Diesel)

Supplier Part/Product Number Verified
AM General 6000092 HML
AC Delco D1808A HML
GM 12555492 HML
Sorenson OPS113 HML


Oil Pressure Switch/Sensor (1996-? TurboDiesel)

Supplier Part/Product Number Verified
AM General 5744455
NA trucks '96-'98, maybe TD too
5745120
'99 and later TD except Alpha
HML
AC Delco - GM 19244500
3-pin
HML
GM 12558074
For the single-pin sensor.
HML

NOTE: 5744455 is the 3-wire sending unit / pressure switch used in '96 through '98 TD trucks. It is correctly identified in the '96 manual, but is incorrectly listed in the '97 and '98 manuals as the unit for the N/A trucks "ONLY". It was used for both the N/A and TD trucks in '97 and '98.

In '96 and earlier N/A trucks (and the gassers), P/N 6000092 was the oil pressure switch, with a separate oil pressure sending unit (P/N 6001037).

In 1999 AMG changed to the 1-wire sensor P/N 5745120. The change was caused by the PCM's takeover of the lift pump operation (based on engine RPM instead of oil pressure). There was no longer a need for an oil pressure switch -- only a sensor for the gauge.

More confusion is also available: The 1-pin and 3-pin sensors use the same connector, install in the same location, and look almost identical but for the pin population. I am not sure, but I believe that a 3-pin sensor can be used in place of the 1-pin sensor, though not the other way around.

Dave B.
BlueHummer Outfitters


Turbo Pressure Sensor (1999 and later, except Alpha, TurboDiesel)

Supplier Part/Product Number Verified
AM General 5744466
1996-1998
5745121
1999 and later except Alpha
HML
AC Delco (213-1520)- GM 12569241 HML


Cold Advance Switch (1996-1998 TurboDiesel)

Supplier Part/Product Number Verified
AM General 5742560 HML


Cold Advance Solenoid (at the injection pump) (1996-1998 TurboDiesel)

Supplier Part/Product Number Verified
AM General 5742633 HML


Ignition Switch, Civilian Hummer, all years

Supplier Part/Product Number Verified
AM General 5743343 HML
Motocraft (Ford) SW-2474 HML


Low Coolant Level Sensor

Supplier Part/Product Number
AM General 6008600
O-ring for the above
AM General 6008584


ABS Sensor

Supplier Part/Product Number
Wabco 4410324900
Bracket:
Tremec Transmission Products 6012521


ABS Wheel Speed Sensor

Supplier Part/Product Number
Wells SU12140
AM General 6008841
Airtex 5S10687
Carquest 7210027
Wabco 441 032 490 0


Turn Signal Switch

The Ford part number for the switch is F33Z-13341-B
Keep in mind that you will lose the horn unless you swap the contacts housing into the new switch.


Notes:

  1. ** These are proprietary part numbers from the manufacturer only available to AM General.
  2. Other end user available part numbers may exist!


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