Best Spark Plugs For 5.3 Vortec: image
Best Overall

A much wider heat range than ordinary gaskets, Iridium Premium plugs are designed to operate over a much wider heat range than ordinary plugs. The premium plugs have a thickness of 2.5mm and can be used with any type of fuel system. The plugs are made from the highest quality materials and meet strict European standards for safety and environmental protection. They are available in black or white versions. Notably, Iridium Premium has been approved by the European Commission.

Value for Money

G-Power Iridium Alloy Spark Plugs offer improved performance and reduced emissions. The insulator is made from high-quality aluminium alloy and has been designed to reduce the risk of spark plug failure due to increased conductivity. It also offers 360-degree laser welding, which can be used to produce electricity at low voltages. This will help reduce fuel consumption by up to 50%. The product is available in two sizes: Standard and Premium.

Honorable Mention

GM Original Equipment (GM) parts are designed and engineered to meet the safety standards set by General Motors. The Iridium spark plug is made of high-quality stainless steel and has been tested for long-lasting performance. It is also used in many electric vehicles, including those with four-cylinder engines. Notably, it was first introduced in 1995. The original equipment manufacturer’s specifications were changed in 2015.

Best Spark Plugs For 5.3 Vortec

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Top 10 Best Spark Plugs For 5.3 Vortec

1

ACDelco GM Original Equipment 41-110 Iridium Spark Plug

482 ratings | 17 offers | 482 Reviews
Price: $6.78$18.95
Why we chose it
  • Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
  • Iridium offers excellent engine idle stability and smooth performance
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
  • Original equipment parts are designed to work with your GM vehicle safety systems — aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
  • GM engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
ACDelco GM Original Equipment 41-110 Iridium Spark Plug: image
94%
customers recommend this product
4.7/ 5
Mileage4.6
Value for money4.5
2

NGK 7397 TR5IX Iridium IX Spark Plug, Pack of 4

663 ratings | 11 offers | 663 Reviews
Price: $26.31$45.21
Why we chose it
  • Spark plugs
  • NGK Sparkplugs
  • 7397
NGK 7397 TR5IX Iridium IX Spark Plug, Pack of 4: image
94%
customers recommend this product
4.7/ 5
Value for money4.1
Mileage4
3
Why we chose it
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life
  • Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
ACDelco GM Original Equipment 41-962 Double Platinum Spark Plug (Pack of 1): image
92%
customers recommend this product
4.6/ 5
Longevity5
Value for money4.3
Mileage3.9
4

NGK 3951 V-Power Spark Plug – TR-55, 1 Pack

951 ratings | 18 offers | 951 Reviews
Price: $2.3$11
Why we chose it
  • Product Type: Spark Plug
  • Package Dimensions: 2.032 cms (L) x 2.54 cms (W) x 8.382 cms (H)
  • Country Of Origin: Japan
  • Package Quantity: 1
NGK 3951 V-Power Spark Plug - TR-55, 1 Pack: image
92%
customers recommend this product
4.6/ 5
Value for money4.6
Mileage4.6
Longevity4.5
5
Why we chose it
  • TRUST IN NGK NTK: Explore components built by the world leader in the design of spark plugs and oxygen sensors. Their attention to performance excellence is what has differentiated them from the competition and allowed them to be the number one supplier of spark plugs and oxygen sensors
  • IMPROVE IGNITION AND SPARK EFFICIENCY: This Spark Plug employs advanced center and ground electrodes to produce complete and efficient combustion and deliver an outstanding spark for faster, stronger, and more powerful combustion over the life of the spark plug. The corrosion-resistant center and ground electrodes minimize spark gap growth and provide greater ignitability and spark efficiency
  • RELY ON QUALITY IGNITION COMPONENTS: From their start in 1936 through today, the NGK product line is proof of their dedication to innovation, performance, and quality. In order to deliver high-quality spark plugs and oxygen sensors to the automotive community, NGK has partnered with auto manufacturers to engineer automotive parts that fit both the vehicles of today and of the future
  • REDUCE EMISSIONS AND MISFIRES: This tried-and-true Spark Plug boosts performance, reduces emissions, and enables better fuel economy so that your engine runs at its best. The durable shell reliably protects the spark plug from corrosion, ensuring long-lasting sparking capabilities. The center and ground electrodes promote sharper spark focus for fewer misfires
  • This 8 pack NGK V-Power Spark Plug is compatible with Chevrolet Silverado 2500 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999 4.8L 5.3L 6.0L V8 and is
8 pc NGK V-Power Spark Plugs compatible with Chevrolet Silverado 2500 4.8L 5.3L 6.0L V8 1999-2014 Ignition Wire Secondary: image
92%
customers recommend this product
4.6/ 5
Value for money4.1
Mileage3.7
6
Why we chose it
    New Bosch 4509 Platinum Ir Iridium Fusion Spark Plug (Set of 8): image
    90%
    customers recommend this product
    4.5/ 5
    Longevity4.5
    Value for money4.2
    Mileage4.1
    Top Pick
    7

    NGK # 1465 Laser Iridium Spark Plug IZTR5B11 — 8 PCSNEW

    816 ratings | 13 offers | 816 Reviews
    Price: $56.89$81.01
    Why we chose it
    • Designed to operate over a much wider heat range than ordinary plugs
    • Resists carbon buildup and pre-ignition
    • Laser Iridium Premium
    • Patented triple gasket sealing process eliminates the possibility of combustion gas leakage
    NGK # 1465 Laser Iridium Spark Plug IZTR5B11 --- 8 PCSNEW: image
    96%
    customers recommend this product
    4.8/ 5
    Value for money4.7
    Mileage4.6
    Longevity4.6
    8

    Fram Autolite XP104-4PK Iridium XP Spark Plug, Pack of 4

    74 ratings | 10 offers | 74 Reviews
    Price: $12.17$36.23
    Why we chose it
    • V-trimmed ground electrode for improved ignitability
    • Limited lifetime warranty
    • Iridium-enhanced 0.6mm finewire design for optimal durability and performance
    • Better overall ignitability and optimum performance
    • Platinum protected ground wire for maximum efficiency in all ignition types
    Fram Autolite XP104-4PK Iridium XP Spark Plug, Pack of 4: image
    92%
    customers recommend this product
    4.6/ 5
    9
    Why we chose it
    • Durability :Trivalent Metal Plating offers superior anti corrosion and anti seizing properties while the triple gasket seal eliminates combustion gas leakage
    • Increased conductivity : Increased conductivity and heat control for good overall. Stability: 0.5mm laser welded fine Iridium tip reduces required voltage ensuring high durability and a consistently stable spark
    • Reduce the risk :Updated design reduce the risk of breaking off during working
    • Increases Fuel Efficiency : G-Power Iridium Alloy Spark Plugs offer superior performance with improved fuel efficiency, Acdelco lower emissions, and quicker starts
    • High quality from high quality material :Purified alumina powder insulator from Germany ALMATIS(Model:HVA FG Q06) and Full-automatic isopressing Iron shell(Model:20# 08 AL) and automatic welding/rolling bending Central electrode Iridium alloy and 360 degree laser welding
    HiVehicle New Iridium Spark Plug OE19299585 41 962 - Specially For Chevrolet, GMC, Cadillac, Buick,Hummer,Oldsmobile,Pontiac,Superior quality,8pcs set.: image
    90%
    customers recommend this product
    4.5/ 5
    Value for money4.7
    Mileage4.6
    Longevity4.4
    10

    ACDelco GM Original Equipment 41-110 Iridium Spark Plug

    657 ratings | 13 offers | 657 Reviews
    Price: $10.16$41.91
    Why we chose it
    • Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage
    • Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration
    • Iridium fine-wire electrode helps improve ignition of the fuel and burns away carbon deposits on the tip of the plug as they form, to help improve fuel economy
    • One piece suppressor seal blocks radio frequencies that can affect vehicle electronics
    • Iridium offers better engine idle stability and smoother performance
    ACDelco GM Original Equipment 41-110 Iridium Spark Plug: image
    94%
    customers recommend this product
    4.7/ 5
    Value for money4.8
    Mileage4.8
    Longevity4.7
    Ranking the Brands
    ACDelco: 20.00%
    NGK: 30.00%
    Sixity Auto: 10.00%
    BOSCH: 10.00%
    Autolite: 10.00%
    HiVehicle: 10.00%
    GM Accessories: 10.00%

    Comparison Table

    Сomparison: ACDelco GM Original Equipment 41-110 Iridium Spark Plug: imageСomparison: NGK 7397 TR5IX Iridium IX Spark Plug, Pack of 4: imageСomparison: ACDelco GM Original Equipment 41-962 Double Platinum Spark Plug (Pack of 1): imageСomparison: NGK 3951 V-Power Spark Plug - TR-55, 1 Pack: imageСomparison: 8 pc NGK V-Power Spark Plugs compatible with Chevrolet Silverado 2500 4.8L 5.3L 6.0L V8 1999-2014 Ignition Wire Secondary: imageСomparison: New Bosch 4509 Platinum Ir Iridium Fusion Spark Plug (Set of 8): imageСomparison: NGK # 1465 Laser Iridium Spark Plug IZTR5B11 --- 8 PCSNEW: imageСomparison: Fram Autolite XP104-4PK Iridium XP Spark Plug, Pack of 4: imageСomparison: HiVehicle New Iridium Spark Plug OE19299585 41 962 - Specially For Chevrolet, GMC, Cadillac, Buick,Hummer,Oldsmobile,Pontiac,Superior quality,8pcs set.: imageСomparison: ACDelco GM Original Equipment 41-110 Iridium Spark Plug: image
    ACDelco GM Original Equipment 41-110 Iridium Spark PlugNGK 7397 TR5IX Iridium IX Spark Plug, Pack of 4ACDelco GM Original Equipment 41-962 Double Platinum Spark Plug (Pack of 1)NGK 3951 V-Power Spark Plug – TR-55, 1 Pack8 pc NGK V-Power Spark Plugs compatible with Chevrolet Silverado 2500 4.8L 5.3L 6.0L V8 1999-2014 Ignition Wire SecondaryNew Bosch 4509 Platinum Ir Iridium Fusion Spark Plug (Set of 8)NGK # 1465 Laser Iridium Spark Plug IZTR5B11 — 8 PCSNEWFram Autolite XP104-4PK Iridium XP Spark Plug, Pack of 4HiVehicle New Iridium Spark Plug OE19299585 41 962 – Specially For Chevrolet, GMC, Cadillac, Buick,Hummer,Oldsmobile,Pontiac,Superior quality,8pcs set.ACDelco GM Original Equipment 41-110 Iridium Spark Plug
    BrandACDelcoNGKACDelcoNGKSixity AutoBOSCHNGKAutoliteHiVehicleGM Accessories
    Core MaterialIridiumIridiumCopperCopperCopperPlatinumIridiumIridiumIridium
    Vehicle Service TypeMotorcycle2014 chevroletEscaladeMotorcycle
    ManufacturerACDelcoNGK SparkplugsACDelcoNGK Spark PlugsSixity AutoBoschNGKFRAMHiVehicleACDelco
    Item Weight0.634 ounces2.4 ounces0.32 ounces1.41 ounces11.5 ounces13 ounces15.5 ounces1.76 ounces13.6 ounces6.4 ounces
    Product Dimensions6.6 x 3.6 x 1.1 inches4.1 x 3.5 x 1 inches4.6 x 3.8 x 1.3 inches4.35 x 2.24 x 2.08 inches3.31 x 0.94 x 6.64 inches8 x 3 x 2 inches1 x 1 x 3.38 inches2.99 x 0.55 x 0.55 inches4.4 x 3.5 x 1 inches
    Is Discontinued By ManufacturerYesNoNoNoNoNoNoNoNo
    Top Material TypeMetalNickelCeramicMetal, CeramicMetalNickelNickel
    Country of OriginUSAJapanMexicoUSA
    ExteriorMilledPaintedChromeMetallic Finish

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