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DENSO FK20HR11 3426 IRIDIUM POWER SPARK PLUG For 2018 Toyota Avalon

731 Thrift
(442)
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US $9.99
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Condition:
New
Breathe easy. Returns accepted.
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US $9.25 USPS Ground Advantage®.
Located in: Troy, Tennessee, United States
Delivery:
Estimated between Wed, Nov 5 and Wed, Nov 12 to 94104
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30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:396819351089
Last updated on Oct 07, 2025 16:57:49 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
DENSO
Type
Spark Plug
OE/OEM Part Number
9091901247
Manufacturer Part Number
FK20HR11, 3426
Material
Iridium
Country/Region of Manufacture
United States
UPC
042511034266
Category

Item description from the seller

About this seller

731 Thrift

99.2% positive feedback•1.3K items sold

Joined May 2019
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.9
Shipping speed
4.9
Communication
4.9

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Product ratings and reviews

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4.7
251 product ratings
  • 216 users rated this 5 out of 5 stars
  • 16 users rated this 4 out of 5 stars
  • 4 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 14 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 179 reviews
  • by beelzeburb
    Feb 27, 2019Top favorable review

    Be prepared to regap these, otherwise fine.

    These spark plugs deserve four stars because they appear to be top of the line, genuine Denso spark plugs, but the gaps are wrong so they need work. Despite the star rating caption, they are not so good as I expected. Gaps ranged from .024" to .054", and none of them was close enough to the specified value of .044" to be usable without correcting the gap. One also had the Iridium points a bit misaligned which needed to be adjusted. It might be reasonable to assume that these were factory rejects. I still think they are good value for people that don't mind correcting the gaps, and saving about ten dollars per plug.

    Verified purchase: YesCondition: NewSold by: automartint914

  • by dgnrg
    Sep 23, 2020Top critical review

    They work as they should with some tweaking

    The Good: The car runs great with the new plugs. The Not so Good: I had to re-gap all of them. They came gapped to .028" These are the identical plugs as what I removed. The gap spec for my vehicle is .044" and I was expecting them to be properly gapped out of the box. In general, it's not a good idea to gap iridium plugs since it may damage or snap the fragile tips off. The Bad: 2 out of 6 new plugs had a sharp barb of arc weld residue where the ground electrode attaches to the thread body. I had to carefully remove it with a jewelers file under a magnifying glass, and retrieve metal bits that lodged between the ceramic and thread body. Maybe these plugs were re-boxed knock-offs or the batch slipped thru normal QA inspection.

    Verified purchase: YesCondition: NewSold by: autoshop_ca

  • by rav4man_center
    Jun 10, 2018

    Awesome Spark Plugs

    I'm so glad I bought these OEM Spark Plugs for my 06 Toyota RAV4 with the 3.5L V6. Honestly, I haven't changed the spark plugs at all and after over 161,000 miles, I finally did. What a difference! I could tell right away. These Denso spark plugs are amazing and the price I bought it from the seller was great. For anyone who owns a Toyota that has these plugs, I highly recommend replacing them with the same.

    Verified purchase: YesCondition: NewSold by: sgt.beer

  • by andrechen_81
    Mar 18, 2021

    Suspect counter-fitted parts, don't buy these.

    This is highly suspected counter-fitted parts. Out of my suspicion, I measured the resistance on these plugs, 3 of them shows 5.1x KOhms (which is normal (ish), and out the the other 3, 2 shows 3.1x KOhms, and one shows 4.2x KOhms. If they are genuine parts, they CANNOT be this in-consistent.

    Verified purchase: YesCondition: NewSold by: vsi-auto

  • by randy1376
    Aug 25, 2022

    Terrible Quality

    For the price, I should have known it was TOO GOOD TO BE TRUE. I had not yet opened the package of plugs that I had received. However, after reading numerous poor reviews, I figured I better check them. Sure enough, I only had to compare 2 of the 6 to clearly see the gapping was terrible. It wasn't even close in comparison. With what it takes to replace the rear plugs in a RX-350, there is absolutely no way I would consider installing this product. Not sure if I was still in the window of return, but not wanting the hassle, I just threw them in the trash. I would certainly assume they are a counterfeit product. Lesson learned. I'll end up paying almost 2x as much but will end up ordering them from Rock Auto.

    Verified purchase: YesCondition: NewSold by: 4hhqxo4_sus@Deleted

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