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NGK 3981 Iridium IX Spark Plug

(Honda CR250R 1978-81, 1987-88, CR125R 1979-81, 1999-2007, ATC250R 1984-86, CR80R 1980-85, TRX250R 1987-88, CR250M 1973-76, CR60R 1983-84 + 161 more models)

Manufacturer

Part Number

3981
Sale Price

$7.92

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The NGK 3981 Iridium IX spark plug is engineered for performance enthusiasts who demand superior ignition performance and durability. This premium spark plug features advanced iridium technology that delivers exceptional ignitability, improved throttle response, and outstanding anti-fouling characteristics.

Key Features:

  • Fine-tipped iridium center electrode provides consistently stable spark and extended service life
  • Iridium alloy construction with extremely high melting point for superior durability
  • Tapered ground electrode design maximizes fuel burn efficiency
  • Enhanced throttle response and acceleration performance
  • Superior anti-fouling properties for reliable ignition in all conditions
  • Improved fuel efficiency through optimized combustion

The Iridium IX series represents NGK's ultimate design and technology for performance applications, delivering the reliability and consistency that enthusiasts expect from NGK's professional-grade spark plugs.

Products specifications

Fits

Honda CR250R 1978-81, 1987-88, CR125R 1979-81, 1999-2007, ATC250R 1984-86, CR80R 1980-85, TRX250R 1987-88, CR250M 1973-76, CR60R 1983-84, FL250 Odyssey 1982-84, NSR50 2004; Yamaha YZ125 1974-76, 1982-2014, 2016-17 + 158 more models

Stock Number

3981

Part Number

BR9EIX

Ground Electrode Core Material

Nickel

Hex Size

13/16

Manufacturer Heat Range

9

Seat Type

FLAT

Ground Electrode Quantity

1

Electrical Terminal Type

Removable Nut

Center Electrode Tip Material

Iridium

Ground Configuration

Standard

Center Electrode Core Material

Copper

Reach

.75

Insulator Height

55.00

Pre-Gap Size

.032

Thread Diameter

14.00

Resistance

5000

Ground Electrode Tip Design

Taper Cut

Fast Shipping. Good packaging. Very good pricing. Will shop from again.

Great price and received item in a timely and in great condition. Will definitely shop here again!

After searching for the best prices for the product that I wanted, I ended up with Autoplicity. I quickly got a response that my product has just been shipped and I am very impressed that Autoplicity is giving me an incentive to write a review on them. This tells me that this company is very concerned with the satisfaction of their customers. I am currently waiting for the order to arrive, but so far, I am extremely confident and happy with Autoplicity!

Site is easy to navigate

Customer Care took care of my return and refunded the shipping after there was some order confusion. Thank you for taking care of everything!

Wow that was fast. I ordered a Pertronix Ignitor conversion kit. Not only were they by far the lowest price I could find, they shipped within hours of submitting the order. I got the shipment in less than 24 hrs, even though I ordered ground shipping. I was a little bummed that they did not offer free shipping, as I am used to with other online places, but with their fast turnaround, I am not begrudging it. Sure it might have been because they have a warehouse nearby, but it was still unexpectedly impressive. The part arrived and looks like it all there and should be good to go. <br><br>I can't vouch for their customer service, but so far I am pleasantly surprised.

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