Best Spark Plugs For Gmc Sierra: image
Best Overall

Genuine NGK Replacement Parts. Please refer to the list for compatibility with original equipment and spare parts. The replacement part is made from high-grade stainless steel and comes with a warranty of one year. It has been tested in accordance with all manufacturer’s safety standards. Notably, this is the first time NGK has replaced a spark plug in its lifetime. This product will be sold under the brand name NGK.

Value for Money

The world’s smallest center electrode and U-Groove ground electrode, Iridium Power has claimed that it can deliver maximum spark energy while withstanding temperatures greater than 4000oF. The company claims that it is working on developing a new generation of spark plugs to help boost acceleration. It also added that it will be available in other alloys.

Honorable Mention

Bosch platinum spark plugs have a 2x longer service life than the standard copper firing pin and yttrium enhanced ground electrode. The premium-grade stainless steel spark plugs are made from high-purity platinum, which has been tested to ensure that it does not affect the performance of the engine. The spark plugs can be used in diesel engines, petrol engines, electric cars and even hybrids. They are available in black or white.

Best Spark Plugs For Gmc Sierra

Top 10 Best Spark Plugs For Gmc Sierra

Top Pick
1

NGK 3951 Pack of 8 Spark Plugs (TR55)

2,446 ratings | 14 offers | 2,446 Reviews
Price: $18.38$27.65
Why we chose it
  • New, Bulk Packed.
  • Consult owners manual for proper part number identification and proper installation.
  • Genuine NGK Replacement Part.
  • Please refer to list for compatibility.
  • Includes (8) Spark Plug.
NGK 3951 Pack of 8 Spark Plugs (TR55): image
94%
customers recommend this product
4.7/ 5
Value for money4.6
Longevity4.5
Mileage4.3
2

Autolite 605-4PK Copper Resistor Spark Plug, Pack of 4

60 ratings | 10 offers | 60 Reviews
Price: $6$14.82
Why we chose it
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof
  • Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
  • Fit type: Vehicle Specific
  • Full copper core electrode provides better performance in all conditions
  • Multi-rib insulator reduces danger of “flash-over”
Autolite 605-4PK Copper Resistor Spark Plug, Pack of 4: image
90%
customers recommend this product
4.5/ 5
3

NGK # 3186 G-Power Platinum Spark Plugs TR5GP – 8 PCSNEW

1,721 ratings | 14 offers | 1,721 Reviews
Price: $23.69$34.96
Why we chose it
  • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
  • Designed to operate over a much wider heat range than ordinary plugs
  • Resists carbon buildup and pre-ignition
  • G-Power Platinum
NGK # 3186 G-Power Platinum Spark Plugs TR5GP - 8 PCSNEW: image
92%
customers recommend this product
4.6/ 5
Easy to install5
Value for money4.4
Mileage4.1
Longevity3.9
4

Denso (5023) T16EPR-U15 Traditional Spark Plug, Pack of 1

84 ratings | 13 offers | 84 Reviews
Price: $1.46$8.64
Why we chose it
  • T16EPR-U15
  • Increases engine performance and throttle response
  • Improved cold-starting
  • Stable combustion during idling
  • Efficient fuel consumption
Denso (5023) T16EPR-U15 Traditional Spark Plug, Pack of 1: image
88%
customers recommend this product
4.4/ 5
Value for money5
Mileage4
5

ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1)

734 ratings | 1 offers | 734 Reviews
Price starts from: $0.99
Why we chose it
  • Copper core provides great heat transfer and helps maximize plug durability
  • Ribbed suppressor seal extends resistance and helps prevent spark flash over and misfires
  • Black Onyx coating helps reduce corrosion
  • Available for use in Marine applications
  • Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1): image
94%
customers recommend this product
4.7/ 5
Mileage4.4
Longevity4.3
Value for money4.2
Easy to install3.5
6

Champion Platinum Power 3013 Spark Plug (Carton of 1)

52 ratings | 14 offers | 52 Reviews
Price: $1.98$11.25
Why we chose it
  • package weight :0.1lbs
  • Platinum conductor Center electrode platinum tip wears less than a standard spark plug This allows the plug to maintain the gap setting throughout its life
  • Exclusive heat-active alloy allows the electrodes to reach optimal temperature quickly and maintain stable operating temperature under all engine loads
  • Product type :SPARK PLUG
  • country of origin :United States
  • Package dimensions :2.54 cm L x8.89 cm W x2.54 cm H
Champion Platinum Power 3013 Spark Plug (Carton of 1): image
88%
customers recommend this product
4.4/ 5
Mileage4.5
Value for money4.2
7

NGK (3403) TR55GP G-Power Spark Plug, Pack of 1

162 ratings | 7 offers | 162 Reviews
Price: $3.99$6.76
Why we chose it
  • Extremely durable under high heat
  • Fine platinum tip reduces required voltage
  • You can depend on NGK for quality and reliability
  • Features superior anti-corrosion and anti-seizing properties
  • Constructed from durable material
NGK (3403) TR55GP G-Power Spark Plug, Pack of 1: image
92%
customers recommend this product
4.6/ 5
Easy to install5
Mileage4.8
Value for money4.8
8

Bosch 6703 Platinum Spark Plug (Pack of 1)

11,772 ratings | 6 offers | 11,772 Reviews
Price: $5.05$17.47
Why we chose it
  • Fine wire design provides better ignitability and performance
  • Platinum firing pin and yttrium enhanced ground electrode provide 2X longer service life compared to standard copper plugs
  • Original equipment, pre-gapped replacement delivering optimum fit, form and function and compatible with a wide range of vehicles including, but not limited to, the following:
  • 4 year performance satisfaction guarantee
  • 360 continuous laser welding to fuse the platinum firing pin for increased durability
Bosch 6703 Platinum Spark Plug (Pack of 1): image
92%
customers recommend this product
4.6/ 5
9

Bosch 4458 / HGR8DQP Platinum + 4 Spark Plug (Pack of 1)

194 ratings | 2 offers | 194 Reviews
Price: $5.81$9.32
Why we chose it
  • Provides ease of installation – never requires adjustment
  • Electrode gap is factory set to provide ease of installation – never requires adjustment
  • Never requires gapping, the electrode gap is factory-set and never requires adjustment
  • Four yttrium-enhanced ground electrodes provide optimum access to the air/fuel mixture for the most efficient combustion, plus the yttrium alloy ground electrodes reduce gap wear and oxidation for extended performance life
  • Revolutionary surface air gap firing technology featuring four yttrium-enhanced ground electrodes delivers the longest, most powerful spark for ultimate engine performance
Bosch 4458 / HGR8DQP Platinum + 4 Spark Plug (Pack of 1): image
88%
customers recommend this product
4.4/ 5
Value for money4
Mileage3.9
10

Denso (5325) IT16 Spark Plugs, Pack of 4

1 ratings | 3 offers | 1 Reviews
Price: $26.07$46.51
Why we chose it
  • Tapered cut, U-Groove ground electrode
  • Required ignition voltage reduced
  • Patented 360-degree laser welding assembly process
  • 0.4mm Iridium Tip
  • Unsurpassed center electrode durability
Denso (5325) IT16 Spark Plugs, Pack of 4: image
100%
customers recommend this product
5/ 5
Top Pick
NGK 3951 Pack of 8 Spark Plugs (TR55)
Includes (8) Spark Plug. Genuine NGK Replacement Part. New, Bulk Packed. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibility.
Ranking the Brands
NGK: 30.00%
Autolite: 10.00%
Denso: 20.00%
ACDelco: 10.00%
Champion: 10.00%
Bosch Automotive: 20.00%

Comparison Table

Сomparison: NGK 3951 Pack of 8 Spark Plugs (TR55): imageСomparison: Autolite 605-4PK Copper Resistor Spark Plug, Pack of 4: imageСomparison: NGK # 3186 G-Power Platinum Spark Plugs TR5GP - 8 PCSNEW: imageСomparison: Denso (5023) T16EPR-U15 Traditional Spark Plug, Pack of 1: imageСomparison: ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1): imageСomparison: Champion Platinum Power 3013 Spark Plug (Carton of 1): imageСomparison: NGK (3403) TR55GP G-Power Spark Plug, Pack of 1: imageСomparison: Bosch 6703 Platinum Spark Plug (Pack of 1): imageСomparison: Bosch 4458 / HGR8DQP Platinum + 4 Spark Plug (Pack of 1): imageСomparison: Denso (5325) IT16 Spark Plugs, Pack of 4: image
NGK 3951 Pack of 8 Spark Plugs (TR55)Autolite 605-4PK Copper Resistor Spark Plug, Pack of 4NGK # 3186 G-Power Platinum Spark Plugs TR5GP – 8 PCSNEWDenso (5023) T16EPR-U15 Traditional Spark Plug, Pack of 1ACDelco Professional R44LTS6 Conventional Spark Plug (Pack of 1)Champion Platinum Power 3013 Spark Plug (Carton of 1)NGK (3403) TR55GP G-Power Spark Plug, Pack of 1Bosch 6703 Platinum Spark Plug (Pack of 1)Bosch 4458 / HGR8DQP Platinum + 4 Spark Plug (Pack of 1)Denso (5325) IT16 Spark Plugs, Pack of 4
BrandNGKAutoliteNGKDensoACDelcoChampionNGKBosch AutomotiveBosch AutomotiveDenso
Core MaterialCopperCopperCopperCopperPlatinumPlatinumPlatinum
Top Material TypeNickelAlloy SteelMetalNickelMetalNickel
ManufacturerNGKFRAMNGKDensoACDelcoChampion Spark PlugBoschBoschDenso
Item Weight1.76 ounces4.8 ounces0.01 ounces6.4 ounces1.6 ounces0.32 ounces1.6 ounces1 pounds
Product Dimensions96.48 x 41.52 x 10.92 inches4.4 x 3.8 x 1.7 inches3.8 x 0.9 x 1 inches3.3 x 1 x 0.8 inches3.35 x 0.96 x 0.96 inches
Country of OriginChinaChinaMexicoUSA
ExteriorChromeChromeMachinedMachined
Is Discontinued By ManufacturerNoNoYesNoNoNo

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