Nickel Spark Plug (DR7EA)
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Nickel Spark Plug (DR7EA)
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NGK Nickel Spark Plug (DR7EA)

Part No. 7839 Warranty Details  

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Corrugated ribs help prevent flashover; high dielectric strength; proper heat transfer; works to eliminate combustion gas leakage; enhanced spark and heat transfer; improved anti-fouling; corrosion resistance.

Product Features:
  • Triple gasket-sealing process virtually eliminates gas leakage past the shell
  • 99% highly pure alumina silicate insulator enables use of longer insulator noses to reduce fouling
  • 3-step trivalent-plating process uses silver chromate and zinc for enhanced corrosion resistance
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Center Electrode Core Material:Copper Core
Center Electrode Tip Material:Nickel
Electrode Core Material:nickel
Electrode Tip Material:nickel
Gap Size:0.028 in
Ground Configuration:Standard
Ground Electrode Core Material:Nickel Core
Ground Electrode Quantity:1
Ground Electrode Tip Design:Standard
Ground Strap Quantity:1
Hex Size:18
Manufacturer Heat Range:7
Reach:19 mm
Resistor:Yes
Seat Type:Gasket
Shorty Spark Plug:No
Thread Diameter:12 mm
Tip Configuration:Loose
Type:Standard
Wrench Diameter:18.00 mm

REVIEW SNAPSHOT®

by PowerReviews
NGKNickel Spark Plug (DR7EA)
 
5.0

(based on 1 review)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

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  • 1 Stars

     

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Reviewed by 1 customer

Displaying review 1

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5.0

Great plugs for my Honda 50 HP outboard

By 

from Lower Burrell, Penna

About Me Boat enthusiast

Verified Buyer

Pros

  • Durable
  • Easy To Install
  • Improves Engine Efficiency

Cons

  • No Cons

Best Uses

  • Replacement
  • Restoration

Comments about NGK Nickel Spark Plug (DR7EA):

I have had the Honda 50 HP outboard since 2004. The motor had NGK plugs in it originally and I thought they would be the best choice since the previous plugs had lasted 9 years. I had developed a slight hesitation when I opened the motor wide out from a dead start. These new plugs completely eliminated the problem. I also make sure I put Stabile from Advance Auto in the fuel, every time I fill the tank. I store the boat(Smokercraft, Resorter) outside all winter, and even with the previous years gas, I have never had any problem with it starting up in the spring after having put stabile in the tank in the Fall.

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