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Iridium Spark Plug NGK 3981

US $12.61
ApproximatelyAU $19.60
Condition:
Brand New
More information - About this item condition
4 available
Breathe easy. Free delivery and returns.
Postage:
Free USPS Ground Advantage®.
Located in: Coffeyville, Kansas, United States
Delivery:
Estimated between Mon, 4 Aug and Sat, 9 Aug to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the postage service selected, the seller's postage history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30-day returns. Seller pays for return postage.
Payments:
     Diners Club

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eBay item number:275420192908
Last updated on 29 Jul, 2025 19:02:34 AESTView all revisionsView all revisions

Item specifics

Condition
Brand New
Manufacturer Warranty
Other
Mfr Code
NGK

About this product

Product Identifiers

Brand
NGK
Manufacturer Part Number
3981
eBay Product ID (ePID)
171189095

Additional Product Features

Part Type
Iridium IX Spark Plugs

Item description from the seller

About this seller

auto-parts-2-u

97.8% positive Feedback16K items sold

Joined Oct 2013

Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage costs
5.0
Postage speed
5.0
Communication
5.0

Seller feedback (4,939)

All ratings
Positive
Neutral
Negative
  • 3***n (55)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    After contact with eBay the shipping cost has now been refunded too, apparently, which I did not understand, the seller only handles refunds for the shipped item, the refund for shipping is something that you have to take to eBay and ask for. The item was broken upon arrival, but that part was refunded by the seller very quickly. So all is good, and I think I can say that the seller is good.
  • d***t (610)- Feedback left by buyer.
    Past year
    Verified purchase
    bought thermostat gasket from auto-parts-2-u. I had planned on sitting on my ass, this weekend. FAST shipping has changed that. Exactly as described. 25 bucks here, and no one had em in stock, saved a ton shopping with auto-parts-2-u ! Excellent packaging, arrived in perfect condition. I Measured fit, high quality Fel-Pro exactly as advertised. Super quality. You looking for the right part at the right time and price, the 1st time ? Shop here with auto-parts-2-u (4615) . AAA+++
  • l***l (76)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item received was as described in the listing. Seller's communication was fine. Would buy from again and recommend others do the same.

Product ratings and reviews

5.0
10 product ratings
  • 10 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • Iridium, it does make a difference....

    There is a lot of voodoo science around when it comes to spark plugs. You try to "read" plugs but on specialty set-ups like my supercharged rotary motor a lot of that goes out the window because these engines run richer to begin with and you literally have to "catch them in the act" coming right off cruise or in-town driving which is pretty dicey with traffic. Best advice? Buy a good quality AFR gauge set-up with a Bosch sensor. Being able to see your air/fuel ratios instantly will show you how minor changes can shift economy, power, etc. As opposed to the copper plugs I had always used these plugs definitely are allowing a hotter burn so I could subsequently richen everything from idle to full tilt flat pedal. Noticeable power increase and even picked up about a mile per gallon. ...

    Verified purchase: YesCondition: NewSold by: 1o97TkLeR52@Deleted

  • Wow!

    Just put this spark plug in a 1999 KX-125. It literally feels like it has twice the horsepower it had before. The low end torque feels like it has doubled also. Highly recommend!!!!

    Verified purchase: YesCondition: NewSold by: radcycles

  • Super quality!

    Nice price for a good quality spark plug, works great on my KTM!

    Verified purchase: YesCondition: NewSold by: motorcycleworks

  • ngk its great

    good price

    Verified purchase: YesCondition: NewSold by: qeautoparts1

  • Thanks worked great

    Thanks worked great

    Verified purchase: YesCondition: NewSold by: motorcycleworks