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Denso®
SET-NP3517-4 Iridium Long Life Series Spark Plug, Set of 4

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$69.49
OR
Manufacturer #SET-NP3517-4
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Included in This Kit

Qty
Part
Brand
Location
Replaces OE Number
Spark Plug
Denso
-
-

Highlights

Part:
Spark Plug
Brand:
Denso
Series:
Iridium Long Life Series
Electrode Tip Material:
Platinum Electrode Tip
Quantity Sold:
Set of 4
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:
Iridium Electrode Core
Gap Size:
0.9 mm
Heat Range:
16
Reach:
26.5 mm
Thread Size:
12 mm

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2016-2018 Toyota Prius
Four
4 Cyl 1.8L
-
2016-2018 Toyota Prius
Four Touring
4 Cyl 1.8L
-
2016-2018 Toyota Prius
Three
4 Cyl 1.8L
-
2016-2018 Toyota Prius
Three Touring
4 Cyl 1.8L
-
2016-2018 Toyota Prius
Touring
4 Cyl 1.8L
-
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Product Information

DENSO IRIDIUM LONG LIFE SERIES SPARK PLUG

Get the best performance out of your engine with the Denso Iridium Long Life Series spark plug, as it provides the most reliable and valuable performance that will match your vehicle's needs. It is designed to last beyond 100,000 miles, providing exceptional horsepower and torque power. Its design creates the most comprehensive spark concentration and explosions for your engine, converting into more energy and excellent fuel economy. It can also perform great even during the most critical engine temperature withstanding oxidation and voltage wear.

  • Created with a patented formula that offers the highest concentration of Iridium to any spark plug
  • Improves your horsepower, torque, and fuel economy
  • Recognized as the best spark plug in the market
  • Decreases the level of heat quenching, presenting less interference and maximized firing potential
  • Designed with fine-wire iridium center electrode
  • Offered in a platinum ground electrode
  • Produces smoother ride with faster acceleration and a more constant idle experience
  • Meets quality and durability standards of OEMs
  • Provides reliable OE performance to your engine

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.

Customer Reviews

Iridium Long Life Series Spark Plug, Set Of 4 4, 1.8
Denso Iridium spark plugs
They are the same plugs that came in my Prius. I had 130,000 miles on the original plugs and the car was still running fine and getting 50 plus miles per gallon. I just didn't want to push the original plugs any farther since winter is coming up.
Mark L.
VERIFIED PURCHASER
Purchased on Sep 05, 2024