My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

E3 Spark Plugs E3.70 DiamondFIRE Premium Automotive Spark Plug

(Ford F-150 2004-08, Mustang 2005-08, F-250 Super Duty 2005-08, Explorer 2006-08, F-350 Super Duty 2005-08, Expedition 2005-08 + 9 more models)

Part of: E3 Spark Plugs DiamondFire Premium Automotive Spark Plugs

Other options in this family: E3 Spark Plugs E3.42 E3 Spark Plugs E3.40 E3 Spark Plugs E3.46 E3 Spark Plugs E3.48 E3 Spark Plugs E3.54

Manufacturer

Picture for manufacturer E3 Spark Plugs

Part Number

E3.70
14 reviews
Sale Price

$10.02

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The E3 Spark Plugs E3.70 is a premium automotive spark plug engineered with patented DiamondFIRE technology to maximize combustion efficiency in gasoline engines. Developed through extensive combustion research, this spark plug features a unique ground electrode design that creates more complete fuel burn and increased combustion pressure during each power stroke.

Key Features:

  • Patented DiamondFIRE edge-to-edge ground electrode configuration for superior flame kernel development
  • Delivers increased horsepower and torque through improved combustion efficiency
  • Enhanced fuel economy by promoting faster, more complete fuel burn
  • Reduced emissions for cleaner engine operation
  • Premium construction for reliable performance and extended service life
  • Direct replacement for standard spark plugs in compatible applications

The E3.70's advanced electrode design directs the flame front toward the piston more efficiently than conventional spark plugs, resulting in measurable performance gains. This innovative design helps extract maximum energy from every combustion cycle, making it an ideal upgrade for drivers seeking improved throttle response, better fuel efficiency, and reduced environmental impact.

Products specifications

Fits

Ford F-150 2004-08, Mustang 2005-08, F-250 Super Duty 2005-08, Explorer 2006-08, F-350 Super Duty 2005-08, Expedition 2005-08, Explorer Sport Trac 2007-08, F-450 Super Duty 2005-08, F53 2005-08, F-550 Super Duty 2005-08 + 5 more models

Electrode Core Material

Copper

Electrode Tip Material

Nickel alloy

Ground Strap Quantity

One

Insulator Type

Projected

Notes

High thread, special long reach design.

Quantity

Sold individually.

Shorty Spark Plug

No

Spark Plug Reach

22mm

Spark Plug Seat Style

Tapered

Spark Plug Thread Size

16mm

Wrench Diameter

9/16 in.

Prop 65

WARNING: This product can expose you to chemicals; including chromium; which is know to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit www.P65Warnings.ca.gov

Found What that I needed Fast

Easy, so far. Fast shipping. As described

Shopping experience has been great. Easy site to navigate and user friendly check out process. Thanks. Paul K

Quick and easy

GOOD PRICES EASY PICKINS

Part was a direct fit

Good

Quick. Simple. Secure.

All good

First of all, I can not believe how fast I recieved my order, 2 DAYS! Best of all, the instructions made it easy for a non mechanic like me to install.

GGreat so far

Fast shipping and the lowest price. Very impressed.

fast shipment and was exactly what i had ordered

Great Communication and instant shipping. Well done!

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy