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NGK 4218 Iridium IX Spark Plug - High Performance Ignition

(Yamaha YFZ450 2004-09, 2012-13, YZ250F 2001-11, YFZ450R 2010-14, 2016-17, 2019, YZ450F 2003-14, 2016-17, WR450F 2003-09, 2011-14, 2016-18 + 207 more models)

Manufacturer

Part Number

4218
Sale Price

$7.92

In Stock (10+)

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The NGK 4218 Iridium IX spark plug is engineered for performance enthusiasts who demand superior ignition performance and reliability. This premium spark plug features advanced iridium technology that delivers exceptional ignitability, improved throttle response, and outstanding anti-fouling protection.

Key Features:

  • Fine-tipped iridium center electrode provides consistently stable spark and extended durability
  • Iridium alloy construction with extremely high melting point for reliable performance under extreme conditions
  • Tapered ground electrode design maximizes fuel burn efficiency
  • Delivers outstanding acceleration response and improved throttle feel
  • Enhanced fuel efficiency helps reduce consumption
  • Superior anti-fouling properties maintain consistent performance

NGK's Iridium IX technology represents the ultimate combination of design, engineering, and performance. The fine-tipped 0.6mm iridium center electrode requires less voltage to fire, ensuring reliable starts and smooth operation. The tapered ground electrode reduces quenching effect and maximizes flame propagation for more complete combustion.

Products specifications

Fits

Yamaha YFZ450 2004-09, 2012-13, YZ250F 2001-11, YFZ450R 2010-14, 2016-17, 2019, YZ450F 2003-14, 2016-17, WR450F 2003-09, 2011-14, 2016-18, YZ426F 2000-02, YZ450FX 2016-17, YFZ450R SE 2010-14, 2016-17, 2019 + 204 more models

Stock Number

4218

Part Number

CR8EIX

Manufacturer Heat Range

8

Ground Electrode Core Material

Nickel

Seat Type

FLAT

Ground Electrode Quantity

1

Electrical Terminal Type

Removable Nut

Center Electrode Tip Material

Iridium

Hex Size

5/8

Ground Configuration

Standard

Center Electrode Core Material

Copper

Reach

.75

Insulator Height

50.50

Pre-Gap Size

.032

Resistance

5000

Ground Electrode Tip Design

Taper Cut

Thread Diameter

10.00

Good so far

Part was what I expected and it arrived on time. Shipping cost was high for such a small part and compared to other vendors.

Great experience so far

Order process was quick and easy

Got it and it was what I needed

Great

Easy to navigate three and buy what you need

It was quick n easy

Delivery took a little longer than expected but product is in new condition as said. I would use this company again.

Very satisfied with this company. Ordered the part from another company and had nothing but problems. We found this place and the part was cheaper and they delivered the right part! Will do busy with again.

Very happy with my purchase. SUPER fast shipping and great communication. Will use again!

Really good prices and fast delivery.

Nice.

very easy

Very easy to talk to on the phone and excellent service.

Autoplicity has made my parts search so much easier. With the best price gurantee, i can now make autoplicity my one-stop shop for all my parts needs.

Lowest prices and fast shipping made this a great transaction.

A+ part as advertised, quick shipping.

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