Spark Plug Replacement Estimate for Hummer H3T

Hummer H3T Spark Plug Replacement costs $117 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$77 to $176
Labor: $70 -$168
Parts: $7 -$8
Average Dealer price
$108 to 212
Average Shop price
$93 to 186
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CarServiceYourMechanic PriceShop/Dealer Price
2009 Hummer H3TV8-5.3LService typeSpark Plug ReplacementYourMechanic Price$155.69Shop/Dealer Price$188.36 - $217.74
2010 Hummer H3TV8-5.3LService typeSpark Plug ReplacementYourMechanic Price$77.89Shop/Dealer Price$94.46 - $111.32
2010 Hummer H3TL5-3.7LService typeSpark Plug ReplacementYourMechanic Price$78.91Shop/Dealer Price$95.68 - $113.28
2009 Hummer H3TL5-3.7LService typeSpark Plug ReplacementYourMechanic Price$155.91Shop/Dealer Price$188.73 - $218.35
Show example Hummer H3T Spark Plug Replacement prices

Parts required for a Hummer H3T Spark Plug Replacement

$7 to $8

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36 years of experience
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12 years of experience
You couldn't have sent a better mechanic. Very knowledgeable and explained what was going on very well and clearly. Extremely helpful, professional, and great personality. Thanks
2006 HUMMER H3 - CAR IS NOT STARTING INSPECTION
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All about Spark Plug Replacement

The spark plugs are an important part of the ignition system. When you turn the ignition key (car's key) on, it causes the ignition coil to generate the spark which ignites the air-fuel mixture in the engine cylinders to start the engine. The number of spark plugs in the car is the same as the number of cylinders, although some vehicle manufacturers will use two spark plugs per cylinder. Over time, the spark plugs wear out and require replacement. When the spark plugs wear out, it is harder for it the air-fuel mixture to ignite, resulting in engine misfires. If one of the spark plugs has failed, the car will still start and run, but it will run poorly. On some vehicles, spark plug replacement may be labor intensive and involve removal of the intake plenum.

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