2008 Hummer H3 Ignition Parts

This table covers the sensors that report camshaft position to the ECU. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor. Read more

13 Camshaft Position Sensor parts for the 2008 Hummer H3 come from 12 brands — WALKER PRODUCTS, DORMAN, HOLSTEIN and 9 other brands. The "Popular" part is GM GENUINE 2134223.

The Economy section lists 4 options from DORMAN, HOLSTEIN, PRENCO and 1 other brand — the catalog's value-priced group. DORMAN 917748 is listed in this group.

The Full Service Kit section lists 1 option from WALKER PRODUCTS — grouped under the catalog's "Full Service Kit" designation — the notes column spells out what sets them apart. WALKER PRODUCTS 23591190 is listed in this group.

In the Standard Replacement grade, GM GENUINE, STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and 5 other brands supply 8 parts: built to original-equipment specification. A representative part number is GM GENUINE 2134223.

This table covers the sensors that report crankshaft position and engine speed. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor. Read more

11 Crankshaft Position Sensor parts for the 2008 Hummer H3 come from 10 brands — WALKER PRODUCTS, DORMAN, HOLSTEIN and 7 other brands. The "Popular" part is WALKER PRODUCTS 23591198.

The Economy section: 4 options from DORMAN, HOLSTEIN, PRENCO and 1 other brand. DORMAN 907889 is listed in this group.

The Full Service Kit section: 1 option from WALKER PRODUCTS. WALKER PRODUCTS 23591198 is listed in this group.

Standard Replacement: 6 parts, from DELPHI, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 3 other brands. A representative part number is DELPHI SS12129.

This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off. Read more

17 Ignition Coil parts for the 2008 Hummer H3 come from 16 brands — STANDARD MOTOR PRODUCTS, B&B, HOLSTEIN and 13 other brands. The "Popular" part is DELPHI GN10454.

The Economy section: 7 options from B&B, HOLSTEIN, PRENCO and 4 other brands. B&B BB2497 is listed in this group.

In the Premium grade, DELPHI, ASTEMO / HITACHI and STANDARD MOTOR PRODUCTS supply 3 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is DELPHI GN10454.

Standard Replacement: 7 parts, from DENSO, GM GENUINE, WALKER PRODUCTS and 4 other brands. A representative part number is DENSO 6737202.

This table covers the lock cylinders in the ignition switch. Read more

3 Ignition Lock Cylinder parts for the 2008 Hummer H3 come from 3 brands — GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.

Part numbers include GM GENUINE 89022365, STANDARD MOTOR PRODUCTS US536L and WELLS 4H1784.

This table covers the Ignition Lock Cylinder hardware. Read more

This group shows a single part: GM GENUINE 89022370.

This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine. Read more

23 Spark Plug parts are listed for the 2008 Hummer H3, from DENSO, NGK, ACDELCO and 4 other brands. ACDELCO 41103 carries the "Popular" badge.

In the Copper / Nickel grade, DENSO supplies 1 part: grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. A representative part number is DENSO 5086.

In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, ACDELCO, BOSCH, DENSO and 1 other brand supply 4 parts: grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 41834.

The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 12 options from DENSO, NGK, ACDELCO and 4 other brands — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. ACDELCO 41103 is listed in this group.

In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, ACDELCO, CHAMPION, NGK and 2 other brands supply 5 parts: grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 17.

In the Ruthenium (maximum durability & ignitability) grade, NGK supplies 1 part: grouped under the catalog's "Ruthenium (maximum durability & ignitability)" designation — the notes column spells out what sets them apart. A representative part number is NGK 90220.

This table covers the silicone and rubber boots that insulate the coil-to-plug spark path. Typical signs include a misfire in the rain, carbon tracking on the boot, or a snap when you pop the coil off. Replace boots as a set on a high-mileage engine; one cracked boot will take the coil with it. Read more

8 Spark Plug / Ignition Coil Boot parts for the 2008 Hummer H3 come from 7 brands — STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS, WALKER PRODUCTS and 4 other brands. The "Popular" part is ACDELCO 16079.

The Economy section: 3 options from STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and WALKER PRODUCTS. STANDARD MOTOR PRODUCTS 20861 is listed in this group.

Standard Replacement: 5 parts, from ACDELCO, STANDARD MOTOR PRODUCTS, BECK/ARNLEY and 2 other brands. A representative part number is ACDELCO 16079.

Listed part numbers: ACDELCO 16079, STANDARD MOTOR PRODUCTS 20861 and UNITED MOTOR PRODUCTS 9022S, plus the other parts above.