DENSO
More Information for DENSO 3524
{Alternate Inventory Numbers: FC16HRQ8}
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DENSO 3524  
$12.40
Price
 $0.00
Core
 + Sold in packs of 1x1
Pack
 $12.40
Total
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DENSO 3524 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Ground ConfigurationNeedle-to-Needle
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignPlatinum Needle
Hex Size14.3 mm
Manufacturer Heat Range16
Pre-Gap Size0.8 mm
Reach26.5 mm
Resistance5000.0 oh
Seat TypeFlat
Thread Diameter12.0 mm
Iridium Long Life; Super Ignition Plug (SIP)
Features & Benefits:
  • LIFESPAN / DURABILITY | Iridium alloy is 6X harder and 8X stronger than Platinum
    • Iridium with Rhodium Center Electrode -- DENSO uses the highest concentration of Iridium of any spark plug and outperforms in the most severe engine temperatures, resisting oxidation and voltage wear for over 100,000 miles.
    • Platinum Ground Electrode -- extends the life of the plug by resisting gap erosion.
    • Patented 360-Degree Laser Welding -- creates the highest quality bond for structural support of the center electrode.
  • PERFORMANCE / IGNITABILITY
    • 0.7 mm Fine Wire Iridium Center Electrode -- improves ignitability for more horsepower, faster easier starts and fewer misfires under heavy loads.
Which DENSO Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel U-Groove
U-Groove		 ★ ★ ★
Platinum Twin Tip
Platinum Twin-Tip		 ★★★★ ★★ ★★
Double Platinum
Double Platinum		 ★★★★★ ★★ ★★
Iridium Twin Tip
Iridium TT		 ★★★★★★ ★★★★ ★★★
Iridium Power
Iridium Power		 ★★★★ ★★★★★ ★★★
Iridium Long Life
Iridium Long Life		 ★★★★★★ ★★★★ ★★
Videos

How To Replace DENSO Spark Plugs

OEM / Interchange Numbers: 9091901289, 90919A1001, XP5684

DENSO Warranty Information:
12 months on A/C Evaporator Cores, A/C Compressors, A/C Compressor Clutches, A/C Condensers, Radiators, Fuel Injectors, Fuel Pumps, Fuel Tank Sending Units, Ignition Coils (COP), Alternators, Starters, and Mass Air Flow Sensors. Parts subject to normal wear and tear are not covered (Filters, Ignition Wires, Oxygen Sensors, Spark Plugs, Wiper Blades, etc.).