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DENSO 5718 Iridium Racing Spark Plug

Part of: DENSO Iridium Racing Spark Plug

Other options in this family: DENSO 5749 DENSO 5751 DENSO 5750 DENSO 5754 DENSO 5731

Manufacturer

Picture for manufacturer DENSO

Part Number

5718
17 reviews
Sale Price

$33.28

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The DENSO 5718 Iridium Racing spark plug represents the pinnacle of ignition technology for high-performance and racing applications. Engineered for enthusiasts who demand maximum performance, this premium spark plug delivers exceptional power, reliability, and durability under extreme operating conditions.

Advanced Iridium Technology:

  • Ultra-fine 0.4mm iridium center electrode provides superior ignitability and throttle response
  • Iridium alloy is six times harder and eight times stronger than platinum for extended electrode life
  • Higher melting point (2,450°C) withstands extreme combustion temperatures in racing engines
  • Improved flame kernel development for more complete combustion and maximum power output

Racing-Grade Performance:

  • Designed specifically for high-RPM, high-compression racing applications
  • Optimized electrode configuration reduces quenching for improved flame propagation
  • Superior anti-fouling characteristics maintain consistent performance
  • Enhanced durability under sustained high-load conditions

DENSO's Iridium Racing spark plugs are the choice of professional motorsports teams and serious performance enthusiasts worldwide. This no-compromise design ensures reliable ignition, consistent performance, and the competitive edge demanded by racing applications.

Products specifications

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Ground Electrode Quantity

1

Pre-Gap Size

0.6

Center Electrode Tip Material

Iridium

Center Electrode Core Material

Copper

Ground Configuration

Slant

Thread Diameter

14.00

Resistance

5000

Manufacturer Heat Range

34

Ground Electrode Tip Design

Full Platinum

Hex Size

20.6

Reach

19.00

Good service

First time user let’s see what happens. Easy to use so far.

No problems occurred

Great and the tires are nice too!

Great price and very fast shipping.

Works fine

So far the ordering was easy.. 5 Stars. Lets see if I get my parts in the two days promised...

great

great PRICING, and DELIVERY. I'll use Autoplicity again !!

Great prices and quick shipping! They kept me informed of when the item was shipped also. Couldn't be happier!

Execellent retailer. Easy to buy from online. Got product quickly at a great price. I highly recommend!

This place was great. Great service they really helped mr out and were fast and extremely helpful.

Fast shipping! Great product! Muffler sounds amazing and will buy again!

My name is Doug Raber and I tell you the truth when I say autoplicity is a great site to shop for auto parts. The prices are low and the customer service is excellent.

Great to order via Amazon; don't need to remember another account and password.

So far so good. No description about which brake pads were for the front and which were for the back though. I haven't had a chance to install these yet but shipping was fast.

Seller was quick and hasle free to deal with. Will purchase again from this seller.

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