DENSO 3492 Iridium Long Life Spark Plug DXE22HQR-D11S

The DENSO 3492 (DXE22HQR-D11S) is a premium iridium long-life spark plug designed for OE performance and exceptional durability. Factory installed on luxury vehicles by automakers such as GM, Toyota, Honda and Mitsubishi, this spark plug delivers sustained performance up to 100,000 miles.

Advanced Iridium Technology:

• 0.7mm iridium tipped laser welded fine wire center electrode and platinum tipped ground electrode
• DENSO's patented Iridium Alloy (90 percent Ir) with fine wire center electrode for improved ignitability and longevity
• Iridium alloy is six times harder and eight times stronger than conventional platinum
• Tapered cut ground electrode increases ignitability and decreases quenching

Technical Specifications:

• 12mm thread size with 1.040 in. reach
• 9/16 in. wrench diameter, gasket seat, projected tip with resistor
• Spark plug gap: 0.044 inches
• Torque specs: 11-18 lb-ft for both cast iron and aluminum heads

Performance Features:

• Platinum Needle Tip Ground Electrode promotes higher spark energy and less heat quenching
• Endures extreme temperatures greater than 4,000 degrees F for high-performance and forced induction applications
• Machine rolled threads prevent seizing or cross threading during installation and removal
• Purified alumina powder insulator provides exceptional strength and thermal conductivity
• Five rib insulator prevents flashover

OEM Cross References:

• Honda P/N 12290-5A2-A02 converts to Denso P/N DXE22HQR-D11S which converts to Denso P/N 3492
• Also replaces Honda 12290-5A2-A01, NGK 91578, NGK 96964

Engineered to meet the strictest OE performance, durability, and emissions standards, this DENSO spark plug provides improved fuel economy, more horsepower, faster starts, and fewer misfires under heavy loads.