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Denso®
3478 Iridium Long Life Series Spark Plug, Sold individually

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$20.99
Manufacturer #3478
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Part:
Spark Plug
Brand:
Denso
Notes:
(1) Ground Electrode; 16 mm Hex Size; 5000 Ohms Resistance; Needle-to-Needle Ground Configuration; Nickel Ground Electrode Core; Platinum Needle Ground Electrode Tip Design; Flat Seat Type
Series:
Iridium Long Life Series
Quantity Sold:
Sold individually
Warranty:
1-year Denso limited Warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Electrode Core Material:
Copper Electrode Core
Gap Size:
1.1 mm
Heat Range:
16
Product Fit:
Direct Fit
Reach:
26.5 mm Reach
Recommended Use:
OE Replacement
Thread Size:
12 mm Thread Size

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2011-2013 Hyundai Sonata
GL
4 Cyl 2.4L
GAS
2011-2014 Hyundai Sonata
GLS
4 Cyl 2.4L
GAS
2011-2014 Hyundai Sonata
Limited
4 Cyl 2.4L
GAS
2011-2014 Hyundai Sonata
SE
4 Cyl 2.4L
GAS
2011-2016 Kia Optima
EX
4 Cyl 2.4L
GAS
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Product Information

DENSO PREMIUM CLASS IRIDIUM LONG LIFE SPARK PLUG

Denso Premium Class Iridium Long Life Spark Plug is fast becoming the standard for today's high-tech engines. Employing a revolutionary 360 degrees laser welding process, Denso has created a spark plug unlike anything on the market today. This particular spark plug is designed for durability under the most extreme conditions, thanks to a patented Iridium alloy that is 6 times harder and 8 times stronger than conventional platinum and can handle temperatures in excess of 4,000 degrees Fahrenheit.

  • Features fine-wire iridium center electrode for maximum firing performance and minimum voltage requirements
  • Platinum ground electrode resists gas and electrical erosion and corrosion extending service intervals to 100,000 miles
  • Tapered cut improves firing performance by reducing quenching
  • Withstands higher pressures and temperatures

Founded in 1949, DENSO is a leading aftermarket supplier of innovative, OE-quality products and technologies in the automotive industry.

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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

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