FK20HR11 Iridium Long Life Spark Plug
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Denso FK20HR11 Iridium Long Life Spark Plug

Part No. 3426 Warranty Details  

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Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap

Product Features:
  • Iridium Long Life - Patented Iridium Alloy Plug (90% Ir) with Platinum Ground Strap
  • 100% pre-fired to assure high quality
  • Copper-glass seal bonds the center electrode and insulator together for a gas-tight seal; maintains proper heat and excludes hot combustion gases
  • Purified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress
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Electrode Core Material:Copper
Electrode Tip Material:0.5mm Iridium
Ground Strap Quantity:1
Insulator Type:Purified Alumina
Manufacturer Heat Range:20
Material:0.5mm Iridium
Reach:1.04 in
Resistor:Yes
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:0.5mm Iridium
Type:Iridium Long Life
Wrench Diameter:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
DensoFK20HR11 Iridium Long Life Spark Plug
 
5.0

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 4 customers

Displaying reviews 1-4

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5.0

This is what came in my Rav so I put the same thing back in

By 

from Ohiio

Verified Buyer

Comments about Denso FK20HR11 Iridium Long Life Spark Plug:

I am only going to change them once so I thought I would buy the best

  • Was this a gift?:
  • No

(2 of 3 customers found this review helpful)

 
5.0

Lot of Miles on these

By 

from Chicago

Pros

  • Durable

Cons

    Best Uses

      Comments about Denso FK20HR11 Iridium Long Life Spark Plug:

      My Toyota Rav4 has gotten 225,000 miles out of these plugs.

      (4 of 4 customers found this review helpful)

       
      5.0

      top shelf product

      By 

      from Easton, PA

      About Me Casual Driver

      Verified Buyer
      Helpful Reviewer

      Pros

      • Durable
      • Easy To Install

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Denso FK20HR11 Iridium Long Life Spark Plug:

        Great product! Japanese companies do know how to handle production of hi-tech parts. These babies will easily get you over 100K miles without hiccup. those spark plugs are not cheap but well worth the expense!

        (2 of 4 customers found this review helpful)

         
        5.0

        Would buy this product again.

        By 

        from Cape Cod

        See all my reviews

        Verified Buyer
        3 or more reviews submitted

        Comments about Denso FK20HR11 Iridium Long Life Spark Plug:

        Product fit vehicle with no issues.

        Displaying reviews 1-4

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