2008 Hummer H2 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

16 Alternator / Generator parts for the 2008 Hummer H2 come from 9 brands — PURE ENERGY, WAI GLOBAL, ACDELCO and 6 other brands. The "Popular" part is PURE ENERGY 15732N.

The New section lists 8 options from PURE ENERGY, TYC, WAI GLOBAL and 5 other brands — brand-new units rather than rebuilt ones. PURE ENERGY 15732N is listed in this group.

The Remanufactured section lists 8 options from DENSO, ACDELCO, BOSCH and 5 other brands — factory-rebuilt units with new wear components. DENSO 2105381 is listed in this group.

This table covers the Alternator / Generator stators. Read more

One part is listed for the 2008 Hummer H2 — BOSCH 1986AE0685.

This table covers the Anti-Theft control modules. Read more

One part is listed for the 2008 Hummer H2 — GM GENUINE 22738087.

This table covers the Automatic Headlamp 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 Automatic Headlamp Sensor parts are listed for the 2008 Hummer H2, from GM GENUINE and STANDARD MOTOR PRODUCTS.

Listed part numbers: GM GENUINE 13498958 and STANDARD MOTOR PRODUCTS EFL172.

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

6 Battery parts are listed for the 2008 Hummer H2, from DEKA, LUCAS, ACDELCO and 3 other brands. DEKA 9A48 carries the "Popular" badge.

This group includes DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM and the remaining parts above.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

This group shows a single part: GM GENUINE 19434467.

This table covers the Battery Cable Junction blocks. Read more

One part is listed for the 2008 Hummer H2 — GM GENUINE 12191376.

This table covers the Battery Current 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

This group shows a single part: GM GENUINE 13505369.

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

DEKA supplies both parts for the 2008 Hummer H2.

This group includes DEKA 00350 and DEKA 01056.

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

2 Body Control Module (BCM) parts for the 2008 Hummer H2 come from GM GENUINE.

This group includes GM GENUINE 84922494 and GM GENUINE 22860591.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

One part is listed for the 2008 Hummer H2 — GM GENUINE 19116527.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

2 Engine Control Module (ECM Computer) parts for the 2008 Hummer H2 come from GM GENUINE.

Listed part numbers: GM GENUINE 19418222 and GM GENUINE 12612384.

This table covers the Engine Control Module (ECM Computer) bolts. Read more

One part is listed for the 2008 Hummer H2 — DORMAN 700251.

This table covers the brackets that mount the Engine Control Module (ECM Computer). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

This group shows a single part: GM GENUINE 23213449.

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

10 Fuse parts are listed for the 2008 Hummer H2, from LITTELFUSE and BUSSMANN. LITTELFUSE MIN20 carries the "Popular" badge.

The 10 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE LMIN10 is listed in this group.

In the 15 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN15.

In the 2 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "2 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM2.

In the 20 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN20.

The 25 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE MIN25 is listed in this group.

The 30 Amp section lists 2 options from LITTELFUSE — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE JCAS30 is listed in this group.

In the 40 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE JCAS40.

The 50 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE JCAS50 is listed in this group.

In the 60 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "60 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE JCAS60.

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

GM GENUINE supplies both parts for the 2008 Hummer H2.

Part numbers include GM GENUINE 84594590 and GM GENUINE 84594588.

This table covers the horn contacts in the steering column. Read more

One part is listed for the 2008 Hummer H2 — GM GENUINE 25889495.

This table covers the receivers that pick up the key-fob unlock signal. Read more

This group shows a single part: GM GENUINE 20803735.

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

This group shows a single part: GM GENUINE 22936098.

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

This group shows a single part: GM GENUINE 19133158.

This table covers the Starter bolts. Read more

2 Starter Bolt parts for the 2008 Hummer H2 come from 2 brands — DORMAN and GM GENUINE.

Part numbers include DORMAN 72004 and GM GENUINE 11610633.

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

16 Starter Motor parts for the 2008 Hummer H2 come from 10 brands — ACDELCO, WAI GLOBAL, FVP and 7 other brands. The "Popular" part is ACDELCO 3371033.

The New section: 7 options from ACDELCO, TYC, WAI GLOBAL and 4 other brands. ACDELCO 3371033 is listed in this group.

The Remanufactured section: 9 options from GM GENUINE, ACDELCO, BOSCH and 6 other brands. GM GENUINE 3231637 is listed in this group.