2007 Hummer H3 Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

13 Alternator / Generator parts for the 2007 Hummer H3 come from 10 brands — PURE ENERGY, REMY, TERREPOWER and 7 other brands. The "Popular" part is GM GENUINE 25925948.

The New section lists 7 options from GM GENUINE, TYC, WAI GLOBAL and 4 other brands — brand-new units rather than rebuilt ones. GM GENUINE 25925948 is listed in this group.

The Remanufactured section lists 6 options from ACDELCO, BOSCH, FVP and 3 other brands — factory-rebuilt units with new wear components. ACDELCO 3342956A is listed in this group.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

One part is listed for the 2007 Hummer H3 — FULLRIVER FT82534.

This table covers the clamps and brackets that secure the battery. Read more

This group shows a single part: DORMAN 390030.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

2 Battery Terminal parts are listed for the 2007 Hummer H3, from DEKA and GM GENUINE.

Part numbers include DEKA 00351 and GM GENUINE PT1116.

This table covers the body-control modules that run lighting, locks and wipers. Read more

This group shows a single part: DORMAN 502023.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

29 Fuse parts are listed for the 2007 Hummer H3, from BUSSMANN and LITTELFUSE. BUSSMANN ATM10 carries the "Popular" badge. 10 Amp, 125 Amp, 15 Amp, 20 Amp, 25 Amp, 30 Amp, 40 Amp and 60 Amp are all represented, and 30 Amp alone accounts for 6 parts.

This table covers the horns mounted in the front of the vehicle. Read more

One part is listed for the 2007 Hummer H3 — GM GENUINE 84594590.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

2 Keyless Entry Remote parts for the 2007 Hummer H3 come from 2 brands — DORMAN and GM GENUINE.

Part numbers include DORMAN 13740 and GM GENUINE 10335583.

This table covers the replacement shells for the key fob. Read more

This group shows a single part: DORMAN 13643.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

10 Speed Sensor parts are listed for the 2007 Hummer H3, from STANDARD MOTOR PRODUCTS, AUTOTECNICA, GPD and 6 other brands. GM GENUINE 19302667 carries the "Popular" badge.

In the Economy grade, AUTOTECNICA, GPD, SKP and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is AUTOTECNICA GM1320218.

The Standard Replacement section lists 6 options from GM GENUINE, WELLS, DELPHI and 3 other brands — built to original-equipment specification. GM GENUINE 19302667 is listed in this group.

This table covers the seals at the Speed Sensor. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

2 Speed Sensor Seal parts for the 2007 Hummer H3 come from GM GENUINE.

Listed part numbers: GM GENUINE 24234215 and GM GENUINE 19133158.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

14 Starter Motor parts for the 2007 Hummer H3 come from 9 brands — PURE ENERGY, ACDELCO, REMY and 6 other brands. The "Popular" part is PURE ENERGY 19466N.

The New section: 6 options from PURE ENERGY, TYC, ACDELCO and 3 other brands. PURE ENERGY 19466N is listed in this group.

The Remanufactured section: 8 options from GM GENUINE, ACDELCO, DENSO and 5 other brands. GM GENUINE 3231639 is listed in this group.

This table covers the Wiring Harness clips. Read more

2 Wiring Harness Clip parts for the 2007 Hummer H3 come from GM GENUINE.

Part numbers include GM GENUINE 15157936 and GM GENUINE 11569980.

This table covers the Yaw sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Yaw Sensor parts are listed for the 2007 Hummer H3, from GM GENUINE and WELLS.

Part numbers include GM GENUINE 25927021 and WELLS 5S12116.