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

NGK UR4IX Iridium IX Spark Plug

(Ford F-150 1975-88, Mustang 1969-85, F-350 Super Duty 1973-96, F-250 1973-96, Bronco 1976-88, Thunderbird 1972-73, 1975-76, F-350 1975-96 + 276 more models)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

UR4IX
6 reviews
Sale Price

$9.18

Out of Stock

Notify me when available
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The NGK UR4IX Iridium IX spark plug delivers superior ignition performance and extended service life for a wide range of automotive applications. Featuring a fine-wire iridium center electrode, this plug provides improved throttle response, lower emissions, and better fuel efficiency compared to traditional copper spark plugs.

Key Features:

  • Ultra-fine 0.6mm iridium center electrode for improved ignitability and durability
  • Tapered ground electrode reduces quenching effect for more complete combustion
  • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
  • Corrugated ribs prevent flashover and improve insulation strength
  • Copper core electrode enhances heat dissipation for optimal operating temperature
  • Iridium construction offers up to 4 times longer service life than conventional plugs

NGK Iridium IX plugs are engineered to original equipment specifications, ensuring reliable performance across automotive, motorcycle, marine, and small engine applications. The UR4IX delivers consistent spark energy under demanding conditions while maintaining optimal combustion chamber temperature.

Products specifications

Fits

Ford F-150 1975-88, Mustang 1969-85, F-350 Super Duty 1973-96, F-250 1973-96, Bronco 1976-88, Thunderbird 1972-73, 1975-76, F-350 1975-96, Maverick 1974-76, Galaxie 500 1969-74, F-100 1973-83, F-250 Pickup 1973-96, Fairlane 1969-70 + 271 more models

Stock Number

7401

Part Number

UR4IX

Seat Type

Tapered

Electrical Terminal Type

Non-Removable Nut

Manufacturer Heat Range

4

Ground Electrode Core Material

Nickel

Ground Electrode Quantity

1

Center Electrode Tip Material

Iridium

Hex Size

5/8

Ground Configuration

Standard

Pre-Gap Size

.040

Center Electrode Core Material

Copper

Insulator Height

55.00

Thread Diameter

14.00

Resistance

5000

Reach

.46

Ground Electrode Tip Design

Taper Cut

Best price fast shipping. will deffinitly order again

Good transaction, no problems, fast ship, quality product. Thanks

Great prices hence why after a search on my desired part why I showed up at their store. Had great communication with their staff throughout the entire process.

Excellent product and fast service!! Great seller with great products!! Fast shipping, no hassles!! AAA+++

Everything went seamlessly. I placed my order on a Thursday and it got here Tuesday morning. No problems, and it was the best price I could find.

Thanks for promo code & fast shipping. A painless transaction.

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