20 Best Spark Plugs For 3.5 Ecoboost (2022 Updated)

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The 3.5 ecoboost spark plugs are responsible for igniting the fuel in the engine. Without them, the engine would not be able to run.

20 Best Spark Plugs For 3.5 Ecoboost

Product Image Product Name Features Price

Ford Performance M-12405-35T Cold Spark Plug Set

  • Gapped to .031.
  • One Heat Range Colder Than Stock.
  • Gapped To .031 in.

Motorcraft Spark Plug SP-546

  • Nickel plated shell for corrosion resistance and improved appearance.
  • Same part that was installed when the vehicle rolled-off the assembly line.

NGK 7164 Spark Plug

  • Fine Iridium Tip Ensures High Durability And A Consistently Stable Spark
  • Iridium Alloy Has Extremely High Melting Point, Perfect For Today’s High-Tech, High-Performance Engines

NGK 3951 Spark Plug

  • Sold in packs of 8
  • Genuine OEM NGK parts
  • NGK standard plugs are treated with corrosion-resistant plating to ensure ease of installation and removal

Motorcraft – SP-433 – Spark Plug

  • Part number: SP-433
  • Fit type: Vehicle Specific
  • Package Dimensions: 3.048 H x 13.208 L x 3.302 W (centimeters)

Motorcraft – SP-509 – Spark Plug

  • Efficient performance
  • Durable
  • Easy installation

Motorcraft – SP-526 – Spark Plug

  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind

Autolite XP5363 – Iridium XP Spark Plug

  • Iridium-enhanced platinum alloy 0.6mm finewire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum sidewire technology resists wear

E3 Spark Plugs E3.74 Automotive Spark Plug

  • Patented DiamondFIRE Ground Electrode
  • Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
  • E3 Equipped Engines Can Minimize Venting Of Unburned Fuel

Ford Racing M-12405-M50A – Performance Cold Spark Plug Set

  • One Heat Range Colder Than The Stock Mustang GT 5.0L 4V Ti-VCT Engine Spark Plugs
  • More Robust Construction For Race Applications

Motorcraft – SP-580 – Spark Plug

  • Nickel plated shell for corrosion resistance and improved appearance.
  • Same part that was installed when the vehicle rolled-off the assembly line.

Accel 578-6 Spark Plug-Copper

  • Size: 030 in

Accel – 578-4 – HP Copper Spark Plug

  • Size: 030 in

Motorcraft – SP-515 – Spark Plug

  • Official plug of Nascar
  • Platinum alloy enhancement in fine-wire form on center electrode and pad form on ground shield strap

NGK Iridium Spark Plug (7385)

  • Master workshop
  • Evaluation profile
  • More articles

Motorcraft – SP550 – Spark Plug

  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind

Motorcraft Spark Plug

  • Used for conventional distributor-equipped and coil-on-plug ignition systems found in many Ford, Lincoln and Mercury vehicles

Motorcraft – SP-411 – Spark Plug

  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal
Ford Performance M-12405-35T Cold Spark Plug Set
  • Gapped to .031.
  • One Heat Range Colder Than Stock.
  • Gapped To .031 in.
Motorcraft Spark Plug SP-546
  • Nickel plated shell for corrosion resistance and improved appearance.
  • Same part that was installed when the vehicle rolled-off the assembly line.
NGK 7164 Spark Plug
  • Fine Iridium Tip Ensures High Durability And A Consistently Stable Spark
  • Iridium Alloy Has Extremely High Melting Point, Perfect For Today’s High-Tech, High-Performance Engines
NGK 3951 Spark Plug
  • Sold in packs of 8
  • Genuine OEM NGK parts
  • NGK standard plugs are treated with corrosion-resistant plating to ensure ease of installation and removal
Motorcraft – SP-433 – Spark Plug
  • Part number: SP-433
  • Fit type: Vehicle Specific
  • Package Dimensions: 3.048 H x 13.208 L x 3.302 W (centimeters)
Motorcraft – SP-509 – Spark Plug
  • Efficient performance
  • Durable
  • Easy installation
Motorcraft – SP-526 – Spark Plug
  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
Autolite XP5363 – Iridium XP Spark Plug
  • Iridium-enhanced platinum alloy 0.6mm finewire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum sidewire technology resists wear
E3 Spark Plugs E3.74 Automotive Spark Plug
  • Patented DiamondFIRE Ground Electrode
  • Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
  • E3 Equipped Engines Can Minimize Venting Of Unburned Fuel
Ford Racing M-12405-M50A – Performance Cold Spark Plug Set
  • One Heat Range Colder Than The Stock Mustang GT 5.0L 4V Ti-VCT Engine Spark Plugs
  • More Robust Construction For Race Applications
Motorcraft – SP-580 – Spark Plug
  • Nickel plated shell for corrosion resistance and improved appearance.
  • Same part that was installed when the vehicle rolled-off the assembly line.
Accel 578-6 Spark Plug-Copper
  • Size: 030 in
Accel – 578-4 – HP Copper Spark Plug
  • Size: 030 in
Motorcraft – SP-515 – Spark Plug
  • Official plug of Nascar
  • Platinum alloy enhancement in fine-wire form on center electrode and pad form on ground shield strap
NGK Iridium Spark Plug (7385)
  • Master workshop
  • Evaluation profile
  • More articles
Motorcraft – SP550 – Spark Plug
  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
Motorcraft Spark Plug
  • Used for conventional distributor-equipped and coil-on-plug ignition systems found in many Ford, Lincoln and Mercury vehicles
Motorcraft – SP-411 – Spark Plug
  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal

1. Ford Performance M-12405-35T Cold Spark Plug Set

Ford Performance M-12405-35T Cold Spark Plug Set

  • Gapped to .031.
  • One Heat Range Colder Than Stock.
  • Gapped To .031 in.

Check Latest Price

Sold By Price
Amazon.com – Seller
AmericanTrucks.com
Complete Street Performance
Summit Racing

Product Details

Specifications

Details
Length 4.8 in
Height 3 in
Width 4.5 in
Weight 1 lb

2. Motorcraft Spark Plug SP-546

Motorcraft Spark Plug SP-546

  • Nickel plated shell for corrosion resistance and improved appearance.
  • Same part that was installed when the vehicle rolled-off the assembly line.
  • Designed to deliver quick starts, enhanced fuel economy and smooth acceleration with 100,000 mile service interval.
  • Proprietary platinum pad on the side wire electrode with iridium enhanced center electrode.

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
AutoZone

Product Details

3. Motorcraft SP580 Spark Plug

Motorcraft SP580 Spark Plug

Check Latest Price

Sold By Price
Amazon.com – Seller

Product Details

Specifications

Details
Package Dimensions 5.2 x 3.78 x 0.98 inches
Exterior Painted

Reviews From Real Customers

Don J.
Truckdoctor

4. NGK 7164 Spark Plug

NGK 7164 Spark Plug

  • Fine Iridium Tip Ensures High Durability And A Consistently Stable Spark
  • Iridium Alloy Has Extremely High Melting Point, Perfect For Today’s High-Tech, High-Performance Engines
  • Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties
  • Outstanding Acceleration, High Fuel Efficiency And Durability
  • Ultimate Design, Technology And Performance

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Discount Bandit – Auto Part Emporium
Nightmotorsport

Product Details

Specifications

Details
Construction Resistor
Sold Unit
Spark number TR55IX
Assembled Product Weight 0.65 lbs
Assembled Product Dimensions (L x W x H) 4.02 x 3.46 x 0.91 Inches

5. NGK 3951 Spark Plug

NGK 3951 Spark Plug

  • Sold in packs of 8
  • Genuine OEM NGK parts
  • NGK standard plugs are treated with corrosion-resistant plating to ensure ease of installation and removal

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart – Buckeye Tool Supply
Opentip.com

Product Details

Specifications

Details
Electrode Type Standard
Electrode Core Material Nickel
Electrode Tip Material Nickel
Insulator Type Projected
Thread Size (IN) 0.551 Inch

6. Motorcraft – SP-433 – Spark Plug

Motorcraft - SP-433 - Spark Plug

  • Part number: SP-433
  • Fit type: Vehicle Specific
  • Package Dimensions: 3.048 H x 13.208 L x 3.302 W (centimeters)

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
AutoZone

Product Details

Specifications

Details
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium Alloy
Ground Electrode Tip Material Nickel Alloy
Insulator Material Standard
Insulator Type Non-Projected

Reviews From Real Customers

LOOKSLIKEMONEY04
Dwight

7. Motorcraft Spark Plug – SP546X

Motorcraft Spark Plug - SP546X

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Sold By Price
Amazon.com – Seller
eBay
FinditParts.com
Summit Racing

Product Details

Specifications

Details
Part Type Spark Plugs
Spark Plug Thread Size 16mm
Spark Plug Reach (in.) 0.483 in.
Spark Plug Reach (mm) 12.27mm
Shorty Spark Plug No

8. Motorcraft – SP-509 – Spark Plug

Motorcraft - SP-509 - Spark Plug

  • Efficient performance
  • Durable
  • Easy installation
  • Prevents fouling

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
AutoZone

Product Details

Specifications

Details
Vehicle 2012 Ford F53 10 Cylinders Y 6.8L MFI CNG SOHC
Vehicle 2012 Ford F53 10 Cylinders Y 6.8L MFI LPG SOHC
Vehicle 2012 Ford F53 10 Cylinders Y 6.8L MFI SOHC
Vehicle 2009 Ford Explorer 4WD 8 Cylinders 8 4.6L FI SOHC
Vehicle 2009 Ford Explorer AWD 8 Cylinders 8 4.6L FI SOHC

Reviews From Real Customers

Hanson
John.G

9. Motorcraft – SP-526 – Spark Plug

Motorcraft - SP-526 - Spark Plug

  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
  • Constantly Modernizing Our Powerful Devices To Meet The Demands Of The Modern User

Check Latest Price

Sold By Price
Amazon.com
eBay – larsonenterprises
Home Depot
Advance Auto Parts

Product Details

Specifications

Details
Part Type Spark Plugs
Spark Plug Thread Size 14mm
Spark Plug Reach (in.) 0.982 in.
Spark Plug Reach (mm) 24.94mm
Manufacturer Heat Range 1

Reviews From Real Customers

Ford F250
Rave
Rebate

10. Autolite XP5363 – Iridium XP Spark Plug

Autolite XP5363 - Iridium XP Spark Plug

  • Iridium-enhanced platinum alloy 0.6mm finewire center electrode for improved ignitibility performance
  • Patented V-trimmed platinum sidewire technology resists wear
  • OE equivalent design is engineered for every engine to ensure the right plug for your vehicle
  • Designed for better overall durability with virtually no gap erosion for longer plug life
  • Attached motor seat gasket and terminal nut

Check Latest Price

Sold By Price
Amazon.com
eBay
AutoZone
Home Depot

Product Details

Specifications

Details
Vehicle 2018 Ford Transit-350 XLT 6 Cylinders 3.7L FI DOHC
Vehicle 2018 Ford Transit-350 HD 6 Cylinders 3.7L FI DOHC
Vehicle 2019 Ford Transit-350 XLT 6 Cylinders 3.7L FI DOHC
Vehicle 2011 Ford Explorer 4WD 6 Cylinders 8 3.5L FI DOHC
Vehicle 2013 Ford Flex SEL 2WD 6 Cylinders 8 3.5L FI DOHC

Reviews From Real Customers

Ford150STXOwner
Peter S
Cali

11. E3 Spark Plugs E3.74 Automotive Spark Plug

E3 Spark Plugs E3.74 Automotive Spark Plug

  • Patented DiamondFIRE Ground Electrode
  • Edge-To-Edge Ground Electrode Out Performs Other Plug Designs
  • E3 Equipped Engines Can Minimize Venting Of Unburned Fuel
  • Burn Fuel More Efficiently By Burning Fuel More Completely
  • Provide A Like-New Performance For The Life Of The Plug

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
AutoZone

Product Details

Specifications

Details
Vehicle 2009 Mazda Mazda3 4 Cylinders 3 2.3L FI DOHC
Vehicle 2009 Mazda Mazda3 4 Cylinders 4 2.3L FI DOHC
Vehicle 2009 Pontiac G6 4 Cylinders B 2.4L FI DOHC
Vehicle 2009 Mazda Mazda3 4 Cylinders F 2.0L FI DOHC
Vehicle 2009 Mazda Mazda3 4 Cylinders G 2.0L FI DOHC

Reviews From Real Customers

EscapeDave
Joker
MobileTech

12. Ford Racing M-12405-M50A – Performance Cold Spark Plug Set

Ford Racing M-12405-M50A - Performance Cold Spark Plug Set

  • One Heat Range Colder Than The Stock Mustang GT 5.0L 4V Ti-VCT Engine Spark Plugs
  • More Robust Construction For Race Applications
  • 0.035 Plug Gap For Supercharged Applications Recommended

Check Latest Price

Sold By Price
Amazon.com – Seller
Walmart
Stage 3 Motorsports
AmericanMuscle.com

Product Details

Specifications

Details
Length 4.5 in
Height 2.5 in
Width 4.5 in
Weight 1.1 lb

13. Motorcraft – SP-580 – Spark Plug

Motorcraft - SP-580 - Spark Plug

  • Nickel plated shell for corrosion resistance and improved appearance.
  • Same part that was installed when the vehicle rolled-off the assembly line.
  • Designed to deliver quick starts, enhanced fuel economy and smooth acceleration with 100,000 mile service interval.
  • Proprietary platinum pad on the side wire electrode with iridium enhanced center electrode.

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
AutoZone

Product Details

Specifications

Details
Brand Part No SP-580
Material Grade Iridium
Hex Size (in) 5/8 Inch
Hex Size (mm) 16mm
Thread Size 14mm

14. Accel 578-6 Spark Plug-Copper

Accel 578-6 Spark Plug-Copper

  • Size: 030 in

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
Torqued

Product Details

Specifications

Details
Assembly Method Tapered
Gap Size 0.030 in.
Hex Size 0.625 in.
Package Quantity 6
Projected Tip Yes

15. Accel – 578-4 – HP Copper Spark Plug

Accel - 578-4 - HP Copper Spark Plug

  • Size: 030 in

Check Latest Price

Sold By Price
Amazon
eBay – holleyperformance
Walmart
AmericanMuscle.com

Product Details

Specifications

Details
Length 4.9 in
Height 3.6 in
Width 1 in
Weight 0.4 lb

16. Motorcraft – SP-515 – Spark Plug

Motorcraft - SP-515 - Spark Plug

  • Official plug of Nascar
  • Platinum alloy enhancement in fine-wire form on center electrode and pad form on ground shield strap
  • Two platinum alloys (Platinum nickel and platinum iridium)
  • Conducting glass-seal terminations and carbon-based resistor

Check Latest Price

Sold By Price
Amazon
eBay
Advance Auto Parts
dieselfiltersonline

Product Details

Specifications

Details
Part Type Spark Plugs
Spark Plug Thread Size 16mm
Shorty Spark Plug No
Resistor Yes
Electrode Tip Material Platinum

17. NGK Iridium Spark Plug (7385)

NGK Iridium Spark Plug (7385)

  • Master workshop
  • Evaluation profile
  • More articles

Check Latest Price

Sold By Price
Amazon
eBay
Dennis Kirk
Advance Auto Parts

Product Details

Specifications

Details
Length 4 in
Height 0.9 in
Width 4 in
Weight 0.1 lb

Reviews From Real Customers

how3371.y8fsp
glennb2006

18. Motorcraft – SP550 – Spark Plug

Motorcraft - SP550 - Spark Plug

  • International Renown For Our Diverse Range Of Award-Winning Products
  • Fully Equipped With State-Of-The-Art Technology
  • All Products Have Been Designed With The Professional In Mind
  • Constantly Modernizing Our Powerful Devices To Meet The Demands Of The Modern User

Check Latest Price

Sold By Price
Amazon
eBay
Walmart – WesNew Auto Parts
AutoZone

Product Details

Reviews From Real Customers

L White
String
Lomaxrice

19. Motorcraft Spark Plug

Motorcraft Spark Plug

  • Used for conventional distributor-equipped and coil-on-plug ignition systems found in many Ford, Lincoln and Mercury vehicles
  • High melting point provides excellent resistance to erosion
  • Help maintain optimum engine performance
  • Provide service intervals from 60, 000 to 100, 000 miles

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
AutoZone

Product Details

Specifications

Details
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium Alloy
Ground Electrode Tip Material Nickel Alloy
Insulator Material Standard
Insulator Type Non-Projected

Reviews From Real Customers

Slacker
TellsItLikeItIs
SherkyTurkey

20. Motorcraft – SP-411 – Spark Plug

Motorcraft - SP-411 - Spark Plug

  • Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal
  • Designed to deliver quick starts, enhanced fuel economy and smooth acceleration with 100,000 mile service interval
  • Same part that was installed when the vehicle rolled-off the assembly line
  • Copper Core electrode, Nickel Chromium Alloy side electrode for excellent heat dissipation & durability

Check Latest Price

Sold By Price
Amazon
eBay
Walmart
AutoZone

Product Details

Specifications

Details
Center Electrode Core Material Copper
Center Electrode Tip Material Iridium Alloy
Ground Electrode Tip Material Nickel Alloy
Insulator Material Standard
Insulator Type Non-Projected

Reviews From Real Customers

MESW
The garage is open

Conclusion

The conclusion of spark plugs for 3. 5 ecoboost is that they are an excellent choice for this vehicle. They offer great performance and fuel economy, and they are very reliable. There are a few things to watch out for, such as making sure they are properly gapped, but overall they are a great choice for this engine.

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