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Chevrolet Trailblazer EXT Spark Plugs Reviews
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Shop Chevrolet Trailblazer EXT Replacement Spark Plugs

Search our online spark plugs catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Chevrolet Trailblazer EXT Spark Plugs parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day.

We stock these Spark Plugs brands for the Chevrolet Trailblazer EXT: DIY SolutionsDensoNGKBoschAC DelcoSKP

Select your Trailblazer EXT year

Review Fitment Notes
Showing 22 of 430 Results
DIY Solutions Spark Plug Set - for 2002 Chevrolet Trailblazer EXT 4.2L 6 Cyl - IGN00971 Click to Enlarge
Website Reviews
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Part Number: IGN00971
Brand: DIY Solutions
Notes: Spark Plug Set -- L6 4.2L
Condition: New
Quantity: 6 Piece
Shipping Options: Free Ground Shipping
$33.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: Q
Vehicle Engine
2002 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Denso Spark Plug - for 2003 Chevrolet Trailblazer EXT 5.3L V8 - W0133-1850286 Click to Enlarge
Website Reviews
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Part Number: W0133-1850286
Brand: Denso
Notes: Iridium Long Life
Product Remark: ZTJ16R10 ND
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$15.83
Our Price: $7.98
(24) In Stock
This Part Fits:
Catalog: A
Vehicle Engine
2003 Chevrolet Trailblazer EXT 5.3L V8
NGK Spark Plug - for 2004 Chevrolet Trailblazer EXT 4.2L 6 Cyl - W0133-1640810 Click to Enlarge
5 Stars
NGK W0133-1640810
Spark Plug
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Part Number: W0133-1640810
Brand: NGK
Notes: G-Power - Do not gap; Gap is pre-set
Product Remark: LTR5GP NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$7.88
Our Price: $2.81
View Details
This Part Fits:
Catalog: A
Vehicle Engine
2004 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Bosch Spark Plug - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 6716 Click to Enlarge
5 Stars
Bosch 6716
Spark Plug
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Part Number: 6716
Brand: Bosch
Notes: OE Fine Wire Platinum -- Do Not Gap, Gap is Preset; Original equipment is iridium
  • OE Fine Wire design with Platinum firing pin on the center electrode requires up to 24% less voltage to ignite and up to 2 times longer life compared to standard copper spark plugs
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
  • Tapered ground electrode allows for better ignition throughout the life of the spark plug
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper and Platinum
Ground Electrode Tip Material: Nickel-Yttrium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
Must be purchased in quantities of 4
$3.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
NGK Spark Plug - for 2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl - W0133-1640810 Click to Enlarge
5 Stars
NGK W0133-1640810
Spark Plug
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Part Number: W0133-1640810
Brand: NGK
Notes: G-Power - Do not gap; Gap is pre-set
Product Remark: LTR5GP NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$7.88
Our Price: $2.81
View Details
This Part Fits:
Catalog: A
Vehicle Engine
2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl
AC Delco Spark Plug - for 2002 Chevrolet Trailblazer EXT - W0133-3740729 Click to Enlarge
Website Reviews
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Part Number: W0133-3740729
Brand: AC Delco
Notes: Gold Copper Core - Do not gap; Gap is pre-set
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$13.10
Our Price: $9.53
(99) In Stock
This Part Fits:
Catalog: A
Vehicle
2002 Chevrolet Trailblazer EXT
AC Delco Spark Plug - for 2002 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 17 Click to Enlarge
5 Stars
AC Delco 17
Spark Plug
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Part Number: 17
Brand: AC Delco
Notes: Gold RAPIDFIRE -- New; Gap 0.050in
Condition: New
Center Electrode Tip Material: Platinum Pad
Shipping Options: Ground
Must be purchased in quantities of 4
$3.74
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2002 Chevrolet Trailblazer EXT 4.2L 6 Cyl
NGK Spark Plug - for 2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl - W0133-1640810 Click to Enlarge
5 Stars
NGK W0133-1640810
Spark Plug
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Part Number: W0133-1640810
Brand: NGK
Notes: G-Power - Do not gap; Gap is pre-set
Product Remark: LTR5GP NGK
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$7.88
Our Price: $2.81
View Details
This Part Fits:
Catalog: A
Vehicle Engine
2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Bosch Spark Plug - for 2003 Chevrolet Trailblazer EXT 5.3L V8 - W0133-1919177 Click to Enlarge
Website Reviews
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Part Number: W0133-1919177
Brand: Bosch
Notes: OE Finewire Double Iridium
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$11.18
Our Price: $5.85
(99) In Stock
This Part Fits:
Catalog: A
Vehicle Engine
2003 Chevrolet Trailblazer EXT 5.3L V8
Bosch Spark Plug - for 2004 Chevrolet Trailblazer EXT 5.3L V8 - 9602 Click to Enlarge
5 Stars
Bosch 9602
Spark Plug
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Part Number: 9602
Brand: Bosch
Notes: OE Fine Wire Double Iridium -- Do Not Gap, Gap is Preset; Original equipment is iridium
  • Double Iridium electrodes - iridium firing pin and iridium ground electrode inlay offer higher performance and 4 times longer life compared to standard copper spark plugs
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
  • Tapered ground electrode allows for better ignition throughout the life of the spark plug
Condition: New
Center Electrode Tip Material: Iridium
Center Electrode Core Material: Nickel-Yttrium and Copper and Iridium
Ground Electrode Tip Material: Nickel-Yttrium and Iridium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
Must be purchased in quantities of 4
$6.15
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Chevrolet Trailblazer EXT 5.3L V8
AC Delco Spark Plug - for 2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl LL8 VIN: S - 41-103 Click to Enlarge
5 Stars
AC Delco 41-103
Spark Plug
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Part Number: 41-103
Brand: AC Delco
Notes: GM Original Equipment Iridium -- New; Original Equipment; GAP .043; GAP PRE-SET AT FACTORY, DO NOT RE-GAP
Condition: New
Center Electrode Tip Material: Iridium
Shipping Options: Ground
Must be purchased in quantities of 8
$7.66
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl LL8 VIN: S
AC Delco Spark Plug - for 2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl - W0133-1900401 Click to Enlarge
5 Stars
AC Delco W0133-1900401
Spark Plug
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Part Number: W0133-1900401
Brand: AC Delco
Notes: Professional Iridium - Do not gap; Gap is pre-set
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$12.90
Our Price: $7.74
View Details
This Part Fits:
Catalog: A
Vehicle Engine
2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl
AC Delco Spark Plug - for 2005 Chevrolet Trailblazer EXT 5.3L V8 - 41-962 Click to Enlarge
5 Stars
AC Delco 41-962
Spark Plug
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Part Number: 41-962
Brand: AC Delco
Notes: GM Original Equipment Double Platinum -- New; Gap 0.040in
Condition: New
Center Electrode Tip Material: Platinum
Shipping Options: Ground
Must be purchased in quantities of 4
$6.44
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer EXT 5.3L V8
NGK Spark Plug - for 2002 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 91418 Click to Enlarge
Website Reviews
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Part Number: 91418
Brand: NGK
Notes: Laser Iridium Spark Plug -- Gap 0.044"; OE Equivalent Design*; 100,000 mi OE Manufacturer Recommended Service Interval
Condition: New
Shipping Options: Ground
$7.85
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2002 Chevrolet Trailblazer EXT 4.2L 6 Cyl
NGK Spark Plug - for 2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 2467 Click to Enlarge
Website Reviews
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Part Number: 2467
Brand: NGK
Notes: Laser Platinum Spark Plug -- Gap 0.044"
Condition: New
Shipping Options: Ground
$8.05
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Bosch Spark Plug - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 6716 Click to Enlarge
5 Stars
Bosch 6716
Spark Plug
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Part Number: 6716
Brand: Bosch
Notes: OE Fine Wire Platinum -- Do Not Gap, Gap is Preset; Original equipment is iridium
  • OE Fine Wire design with Platinum firing pin on the center electrode requires up to 24% less voltage to ignite and up to 2 times longer life compared to standard copper spark plugs
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
  • Tapered ground electrode allows for better ignition throughout the life of the spark plug
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper and Platinum
Ground Electrode Tip Material: Nickel-Yttrium
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
$2.79
(1) In Stock
This Part Fits:
Catalog: F
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Bosch Spark Plug - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 4482 Click to Enlarge
Website Reviews
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Part Number: 4482
Brand: Bosch
Notes: Platinum+4 -- Do Not Gap, Gap is Preset; Original Equipment Is Iridium
Condition: New
Shipping Options: Ground
$5.05
(1) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Bosch Spark Plug - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 8107 Click to Enlarge
5 Stars
Bosch 8107
Spark Plug
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Part Number: 8107
Brand: Bosch
Notes: OE Fine Wire Double Platinum -- Do Not Gap, Gap is Preset; Original equipment is iridium
  • Platinum on the center electrode firing pin and laser welded platinum inlay ground electrode provide 3 times longer life than conventional copper spark plugs
  • OE Fine Wire design requires up to 24% less voltage to ignite
  • 360 degree continuous laser welding increases durability for increased life
  • Copper core provides broader heat range to resist pre-ignition and fouling
  • Pre-gapped and nickel plated threads allow for quick installation without adjusting the gap or applying anti-seize
Condition: New
Center Electrode Tip Material: Platinum
Center Electrode Core Material: Nickel-Yttrium and Copper and Platinum
Ground Electrode Tip Material: Nickel-Yttrium and Platinum
Insulator Material: Ceramic
Package Contents: Spark Plug
Shipping Options: Ground
$4.60
(9) In Stock
This Part Fits:
Catalog: C
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
SKP Spark Plug - for 2006 Chevrolet Trailblazer EXT 5.3L V8 - SP1020 Click to Enlarge
Website Reviews
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Part Number: SP1020
Brand: SKP
Notes: Spark Plug -- Gap: .040/1.0mm; Enhanced Tapered Ground Electrode With Platinum Chip
  • Meets or exceeds OEM specifications
  • Rigorous quality control measures
  • 12-month SKP limited warranty
Condition: New
Shipping Options: Ground
$2.93
View Details
This Part Fits:
Catalog: T
Vehicle Engine
2006 Chevrolet Trailblazer EXT 5.3L V8
AC Delco Spark Plug - for 2006 Chevrolet Trailblazer EXT 5.3L V8 LH6 VIN: M - 41-162 Click to Enlarge
4.5 Stars
AC Delco 41-162
Spark Plug
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Part Number: 41-162
Brand: AC Delco
Notes: GM Original Equipment Iridium -- New; Original Equipment; GAP .040; GAP PRE-SET AT FACTORY, DO NOT RE-GAP
Condition: New
Center Electrode Tip Material: Iridium
Shipping Options: Ground
$6.68
(99) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2006 Chevrolet Trailblazer EXT 5.3L V8 LH6 VIN: M
SKP Spark Plug - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - SP1021 Click to Enlarge
Website Reviews
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Part Number: SP1021
Brand: SKP
Notes: Spark Plug -- Gap: .043/1.1mm; Enhanced Tapered Ground Electrode With Platinum Chip
  • Meets or exceeds OEM specifications
  • Rigorous quality control measures
  • 12-month SKP limited warranty
Condition: New
Shipping Options: Free Ground Shipping
$7.64
with FREE Shipping
View Details
This Part Fits:
Catalog: S
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
NGK Spark Plug - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 3474 Click to Enlarge
Website Reviews
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Part Number: 3474
Brand: NGK
Notes: Laser Iridium Spark Plug -- Gap 0.044"; OE Equivalent Design*; 100,000 mi OE Manufacturer Recommended Service Interval
Condition: New
Shipping Options: Ground
$8.45
(4) In Stock
This Part Fits:
Catalog: N
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl

Related Engine Electrical Parts

Spark Plugs available for the following Chevrolet Trailblazer EXT years: 2006, 2005, 2004, 2003, 2002, 06, 05, 04, 03, 02. This part is also sometimes called Chevrolet Trailblazer EXT Spark Plug. We stock spark plugs parts for most Chevrolet models including Silverado 1500, Tahoe, Impala, S10, Trailblazer, Malibu, Suburban 1500, Corvette, Silverado 2500 HD, Blazer, C1500, Camaro, K1500, Equinox, Monte Carlo, Cruze, Avalanche 1500, Colorado, Astro, Cobalt, Aveo, Traverse, Cavalier, HHR, Avalanche, Express 1500, C2500, Express 2500, Express 3500, Sonic, Silverado 1500 HD, C10, K2500, K1500 Suburban, Caprice, C1500 Suburban, Silverado 2500, Venture, Uplander and El Camino.

Chevrolet Trailblazer EXT Spark Plugs Reviews
5 of 5
Verified Customer
1/18/18 05:02 PM - USA

Part came in a timely matter. No damages to the box everything was in order. Next customer experience online all the way around. GREAT website!! - Christian

- 2003 Chevrolet Trailblazer EXT Spark Plug
5 of 5
Verified Customer
5/28/20 11:50 AM - USA

i am indeed satisfied with the product i received...have order from this distributor on many occasions and will do in the future - spark plug

- 2003 Chevrolet Trailblazer EXT Spark Plug