2006-2010 HUMMER H3 SPARK PLUG (E3 DIAMONDFIRE AUTOMOTIVE SPARK PLUGS)

Select Vehicle

$5.95
Product #: 19573G Brand: E3
Customer Rating: 3.6 of 5 stars

Automotive Spark Plug

SKU #: JCW-526362 Mfr #: E3.54
  • Reach: 18 mm
  • Electrode Core Material: Copper
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Product Fit: Direct fit
  • E3 Diamond Fire Series
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
  • Reach: 18 mm
  • Electrode Core Material: Copper
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Product Fit: Direct fit
  • E3 Diamond Fire Series
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
$5.95

Per Sold Individually

Ships: 1-2 business days

Add to Cart
See Fitment Details for Alpha, and Alpha
  • SUBMODEL
  • ENGINE
  • FIT NOTE
  • Alpha
  • 8 Cyl 5.3L
  • Fits all 2008-2010 Hummer H3 Alpha 8 Cyl 5.3L
  • Championship Series
  • 8 Cyl 5.3L
  • Fits all 2009 Hummer H3 Championship Series 8 Cyl 5.3L

Automotive Spark Plug

SKU #: JCW-329967 Mfr #: E3.66
  • Reach: 25.4 mm
  • Electrode Core Material: Copper
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Product Fit: Direct fit
  • E3 Diamond Fire Series
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
  • Reach: 25.4 mm
  • Electrode Core Material: Copper
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 1.016 mm
  • Plug Type: Resistor
  • Product Class: Fuel saver
  • Product Fit: Direct fit
  • E3 Diamond Fire Series
  • Thread Size: 14 mm
  • Warranty: 5-year or 100,000-mile E3 limited warranty
$5.95

Per Sold Individually

Ships: 1-2 business days

Add to Cart
See Fitment Details for Base, X, and X
  • SUBMODEL
  • ENGINE
  • FIT NOTE
  • Base
  • 5 Cyl 3.5L
  • Fits all 2006 Hummer H3 Base 5 Cyl 3.5L
  • X
  • 5 Cyl 3.7L
  • Fits all 2007-2009 Hummer H3 X 5 Cyl 3.7L
  • Base
  • 5 Cyl 3.7L
  • Fits all 2007-2010 Hummer H3 Base 5 Cyl 3.7L
Overall Rating
3.6 out of 5
3.6 out of 5
Open Ratings Snapshot
Rating breakdown 59 reviews
5 Stars
28
4 Stars
11
3 Stars
4
2 Stars
2
1 Star
14
Ease of Use/Installation
4 out of 5
4 out of 5
Quality/Construction
4 out of 5
4 out of 5
42 of 59(71%)reviewers would recommend this product to a friend.
Product ReviewsWrite a review
Overall Rating
5 out of 5
5 out of 5
Good Plugs
November 29, 2011
Matt
Location: Seagrove, NC
How often do you shop at JC Whitney.com? First Time
"Put these plugs in my 2000 silverado 2500 and what can I say they work great!!!! I can tell a great diffrence in the running and power of my truck. Your next set of plugs you need to go with these!!!"
+7points
12out of 17found this review helpful.
Was this helpful?helpful12unhelpful5
Overall Rating
4 out of 5
4 out of 5
Quality plugs
November 3, 2013
Maintainer
Location: Rockford, IL, USA
How often do you shop at JC Whitney.com? Multiple Times a Year
Ease of Use/Installation
5 out of 5
5 out of 5
Quality/Construction
5 out of 5
5 out of 5
"I have purchased my second set for my 1998 Dodge Ram 1500.
My first set have lasted over 6 years!
I had 1 plug foul when I first bought them but I called JC Whitney and they replaced it in one day by mail.
These plugs increased my fuel mileage approx. 2-3 mpg and have not failed me.
I recommend them!
"
+2points
2out of 2found this review helpful.
Was this helpful?helpful2unhelpful0
Overall Rating
5 out of 5
5 out of 5
I'm a fan
May 29, 2013
Doug
"I am a fan of e3, while there some haters out there I haven't had any problems. Note, when replacing plugs I replace the wires and coils with high end aftermarket ones, so, maybe that is why I have no problems."
Pros: More power and milage
Cons: none
+2points
3out of 4found this review helpful.
Was this helpful?helpful3unhelpful1
Overall Rating
1 out of 5
1 out of 5
Misleading
May 23, 2013
bubba
Ease of Use/Installation
3 out of 5
3 out of 5
Quality/Construction
3 out of 5
3 out of 5
"These actually cut my mpg in half, went from 25 to 13. These use up more fuel"
-6points
3out of 12found this review helpful.
Was this helpful?helpful3unhelpful9
1-4 of 59
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