Best Spark Plugs

Listen to article

Top 13 Best Spark Plugs

Why we chose it

Trivalent metal plating has superior anti-corrosion and anti-seizing properties
Designed specifically for the performance enthusiast, Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling
The 0.6mm laser welded fine Iridium tip ensures high durability and a consistently stable spark and the tapered ground electrode minimizes electrical quenching effect
Fit type: Vehicle Specific
Iridium alloy has extremely high melting point, giving it high durability to heat and electrical wear, perfect for today’s high-performance engines
Longer insulator nose prevents fouling, the corrugated ribs on insulator prevents flashover, and a triple gasket seal eliminates combustion gas leakage

Check Latest price

NGK BKR5EIX-11 Iridium IX Spark Plug, standard: image

94%

customers recommend this product

4.7/ 5

Value for money4.5

Longevity4.5

Mileage4.5

Why we chose it

The fine-wire and V-trimmed electrode creates a sharper spark focus than a conventional spark plug
An exclusive heat-active alloy allows the electrodes to reach optimal temperature quickly and maintain stable operating temperature under all engine loads
Fine-wire center electrode for greater ignitability
Platinum center and ground electrode for greater wear resistance
Double platinum conductors place platinum on both the center and ground electrodes to ensure longer plug life and minimize wear on both electrode surfaces
V-trimmed ground electrode promotes sharper spark focus
Double Platinum Power – Premium Spark Plug. More Powerful Performance.
Maintains stable operating temperature under all engine loads
Champion double platinum spark plugs utilize an exclusive heat-active alloy; The dual platinum fine-wire center electrode and platinum pad electrodes provide sharper spark focus and maximize plug life

Check Latest price

Champion Double Platinum Power 7440 Spark Plug (Carton of 6): image

90%

customers recommend this product

4.5/ 5

Mileage4.4

Longevity3.8

Value for money3.8

Why we chose it

Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress
Improve fuel economy, better acceleration and faster starts than all other single platinum plugs
Twin-tip technology with 11 mm platinum center electrode and 11 mm titanium enhanced ground electrode
Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress

Check Latest price

Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1): image

92%

customers recommend this product

4.6/ 5

Value for money4.5

Longevity4.4

Mileage4.4

Why we chose it

Sold in packs of 4

Check Latest price

Autolite 3924 Spark Plug Copper Core (4 Pack): image

96%

customers recommend this product

4.8/ 5

Value for money4.9

Mileage4.7

Why we chose it

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
Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
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
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
GM regularly updates production and service part designs to integrate new materials and technologies

Check Latest price

ACDelco GM Original Equipment 41-114 Iridium Spark Plug (Pack of 1): image

92%

customers recommend this product

4.6/ 5

Value for money3.7

Mileage3.7

Longevity3.6

Why we chose it

0.4mm Iridium Center Electrode
Denso # 4719
Thread Size – 14mm. Thread Pitch – 1.25mm. Hex Size – 5/8 inch(16mm)
Larger spark translates to more power and superior fuel economy
0.7mm Platinum Ground Electrode

Check Latest price

Denso (4719) ITV20TT Iridium TT Spark Plug, (Pack of 1): image

92%

customers recommend this product

4.6/ 5

Value for money4.2

Mileage3.7

Why we chose it

Included components: SPARK PL
Part number: 7634
Quality Assured
Fit type: Vehicle Specific

Check Latest price

94%

customers recommend this product

4.7/ 5

Why we chose it

NGK 7090 Spark Plug – Pack of 4 (7090)

Check Latest price

NGK 7090 BKR5EGP G-Power Spark Plug, Pack of 4: image

94%

customers recommend this product

4.7/ 5

Easy to install4.7

Value for money4.6

Mileage4.5

Why we chose it

V-trimmed ground electrode for improved ignitability
Better overall ignitability and optimum performance
Limited lifetime warranty
Platinum protected ground wire for maximum efficiency in all ignition types
Iridium-enhanced 0.6mm finewire design for optimal durability and performance

Check Latest price

Autolite XP3923-4PK Iridium XP Spark Plug, Pack of 4: image

94%

customers recommend this product

4.7/ 5

Value for money4.6

Mileage4.4

Longevity4.1

Why we chose it

Genuine Ford OE parts are the only replacement parts warranted by Ford Motor Company
If you are leasing, check your lease agreement, using Genuine Ford OE Parts may be a requirement
Designed and produced to the same specifications and tolerances as the parts on the vehicle when it was manufactured
They meet stringent requirements for fit, finish, structural integrity, and corrosion protection
Using Genuine Ford OE Parts for repairs keeps your vehicle running like new and can help maintain its value

Check Latest price

Genuine Ford Parts (AGSF34FM) Spark Plug: image

90%

customers recommend this product

4.5/ 5

Why we chose it

1order = 6 Pieces
G-Power Platinum

Check Latest price

NGK 7090 G-Power Platinum Spark Plugs BKR5EGP - 6 PCSNEW: image

94%

customers recommend this product

4.7/ 5

Value for money4.7

Longevity4.6

Mileage4.6

Easy to install4.6

Why we chose it

Built to ISO and SAE standards for proven performance
Copper Plus – Dependable Performance and Durability
Superior corrosion resistance
Copper core center electrode allows for accurate control of heat range for longer life

Check Latest price

Champion Copper Plus 71 Spark Plug (Pack of 1): image

94%

customers recommend this product

4.7/ 5

Mileage4.6

Longevity4.6

Easy to install4.5

Value for money4.2

Why we chose it

Designed with high quality materials to meet or exceed OEM Specifications.
Product is backed by a limited 1 Year Replacement Warranty.
Every single spark plug is inspected throughout the entire shipping process for worry free, out-of-the-box performance.
Brand New Spark Plug in original Packaging. Please verify your year, make and model or contact us before pruchasing.

Check Latest price

Motorcraft Spark Plug SP546 Set Of 8: image

94%

customers recommend this product

4.7/ 5

Value for money4.4

Easy to install4.4

Mileage4.3

Champion Copper Plus 71 Spark Plug (Pack of 1)

Dependable performance. This Champion spark plug features a copper core electrode that provides increased conductivity and heat control.

Ranking the Brands: NGK: 30.77%; Champion: 15.38%; Denso: 15.38%; Autolite: 15.38%; ACDelco: 7.69%; Ford: 7.69%; Motorcraft: 7.69%

Comparison Table


	NGK BKR5EIX-11 Iridium IX Spark Plug, standard	Champion Double Platinum Power 7440 Spark Plug (Carton of 6)	Denso (4504) PK20TT Platinum TT Spark Plug, (Pack of 1)	Autolite 3924 Spark Plug Copper Core (4 Pack)	ACDelco GM Original Equipment 41-114 Iridium Spark Plug (Pack of 1)	Denso (4719) ITV20TT Iridium TT Spark Plug, (Pack of 1)	NGK 7634 Spark Plug, black	NGK 7090 BKR5EGP G-Power Spark Plug, Pack of 4	Autolite XP3923-4PK Iridium XP Spark Plug, Pack of 4	Genuine Ford Parts (AGSF34FM) Spark Plug	NGK 7090 G-Power Platinum Spark Plugs BKR5EGP – 6 PCSNEW	Champion Copper Plus 71 Spark Plug (Pack of 1)	Motorcraft Spark Plug SP546 Set Of 8
Brand	NGK	Champion	Denso	Autolite	ACDelco	Denso	NGK	NGK	Autolite	Ford	NGK	Champion	Motorcraft
Core Material	Copper	–	–	Copper	Iridium	–	–	Platinum	Iridium	–	–	Copper	–
Top Material Type	Metal	–	–	Alloy Steel	–	–	–	Metal	Alloy Steel	–	–	Metal	–
Manufacturer	NGK Spark Plugs	Champion	Denso	–	ACDelco	Denso	NGK	NGK	FRAM	Motorcraft	NGK	Champion	Herko Automotive
Item Weight	0.88 ounces	1.12 ounces	1.44 ounces	7.2 ounces	1.44 ounces	1.6 ounces	2.4 ounces	6.9 ounces	6.7 ounces	1.6 ounces	1.6 ounces	1.44 ounces	6 ounces
Product Dimensions	4.35 x 2.24 x 2.08 inches	0.1 x 0.1 x 0.1 inches	1.1 x 3.4 x 1.2 inches	1 x 4 x 3.5 inches	4.4 x 3.5 x 1 inches	3.66 x 0.98 x 0.98 inches	4 x 3.5 x 1 inches	3.4 x 1.1 x 0.9 inches	–	3.3 x 1 x 1 inches	–	1 x 3.75 x 0.75 inches	6 x 3 x 3 inches
Is Discontinued By Manufacturer	No	No	No	No	No	No	No	No	No	–	No	No	No
Exterior	Painted	Machined	–	–	Polished	Painted	–	–	Chrome	Polished	–	Machined	–
Country of Origin	–	USA	–	–	USA	Japan	China	–	Mexico	USA	–	–	–