Talk to a Mustang Expert
1-888-332-7930
Mon-Thu 8:30a-11p, Fri-Sun 8:30a-9p

Free Shipping on Everything. Seriously. Details

NGK Iridium IX Performance Spark Plugs (83-85 5.0L)

2 Reviews
Our Price

$69.99

(set of 8)
  • Item #64017
  • MPN# 7401

  • Market Price $79.99
  • You Save 13% ($10.00)
Out of Stock Notify Me Choose options to add to cart
Free Shipping on Everything
Features
  • Iridium Tip for a Constant Stable Spark
  • Improves Fuel Economy and Lower Emissions
  • Heat Range: 4
  • NGK Part# 7401
  • Fits 1983-1985 5.0L V8 Mustangs
  • Sold as a Set of 8
Description
High Performance. Keeping your Mustangs high performance engine running smoothly and efficiently is important, so routinely replace your old weak plugs with a new set of NGK Iridium IX Performance Spark Plugs for constant reliable spark power. The Iridium IX plugs from NGK will provide improved throttle response, fuel efficiency, lower emissions, and will reduce fouling.

Superior Materials. NGK Iridium IX Performance Spark Plugs feature a copper core electrode for its superior conductivity and an iridium tip (which is 6X harder than platinum) for it's extremely high melting point, perfect for keeping your Mustangs high-performance engine running at it's peak. And as an added bonus the Iridium IX plug features Trivalent Metal Plating for it's superior anti-corrosion and anti-seizing properties.

Application. This set of eight (8) NGK Iridium IX Performance Spark Plugs are specifically designed as a direct fit replacement for the 1983-1985 Mustangs equipped with the 5.0 liter V8.

Fitment: 1983 1984 1985 Details

What's in the Box
  • (8) Spark Plugs
Installation Info
Will it fit my Mustang?
  • Foxbody - 83, 84, 85

Fits 5.0L V8's Only

Most Helpful Reviews

5/5
Major tune up

I ordered the iridium spark plugs, American racing spark plug wires ,MSD distributor cap and rotor and the MSD coil all at once . The wires were all cut to length and numbered for easy installation .Do ...

Read More
Helpful (1)

5/5
NGK Iridium IX Performance Spark Plugs

This spark plugs are def one of the best brands out there. It has made a difference in my Mustang. The install was fairly easy, for those that are new at doing your tune ups I recommend finding a diagram ...

Read More
Helpful (0)

Read All 2 Reviews
Overall Rating 5 out of 5 stars

Customer Photos

You Might Also Like

Q & A

No questions about this product yet.

Ask the First Question

More Products You Might Like

Customer Reviews (2) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Afternoon

  • Performance Gain 5 5
  • Fit 5 5
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Afternoon

    December 19, 2014

    Major tune up

    I ordered the iridium spark plugs, American racing spark plug wires ,MSD distributor cap and rotor and the MSD coil all at once . The wires were all cut to length and numbered for easy installation .Do one wire and one plug at a time, transferring each plug wire to the new distributor cap . I took my time ,turned the heater and radio on in my garage and i was good to go , probably a couple of hours . I fired that baby up and took it for a ride, all i can say is wooow !!!!!!! Get rrr done !! Thanks America Muscle --- from Canada have a nice day eh .

    miichael14

    Year: 1988 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 4 London, ON, Canada

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    January 18, 2016

    NGK Iridium IX Performance Spark Plugs

    This spark plugs are def one of the best brands out there. It has made a difference in my Mustang. The install was fairly easy, for those that are new at doing your tune ups I recommend finding a diagram that shows you the sequence numbers of your plug connections. You will need a long socket to change the old spark plugs (I prefer the socket with the magnet for easy pick up) Once your ready to install the NGK Spark plug start by installing one at a time. You can add the special lube on the grooves of the spark plug to prevent any broken spark plugs in the future when replacing them. These spark plugs are the best! Def recommend these they are solid!

    grafftruth

    Year: 1985 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Phoenix Az

    Helpful (0) (1)

Related Mustang Categories