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DENSO 3461  
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DENSO 3461 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Gap Size1.1 (MM)
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignPlatinum Chip
Hex Size16.0 (MM)
Manufacturer Heat Range22
Reach26.50 (MM)
Resistance5000 (oh)
Seat TypeFlat
Thread Diameter12.00 (MM)
Iridium Long Life; Pre-Set Gap: 0.044"
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.
    • 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
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
★★★★★★ ★★★★ ★★

How To Replace DENSO Spark Plugs

OEM / Interchange Numbers: 101905622, 12290R40A01, 12290R40A02, 12290R70A01, 12290R70A02, 1884611070, 1884911070, 7B0905600A, 95517022090, SP149125AD, SXU22HCR11S

Warranty Information:
No Warranty