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Platinum TT
The Platinum TTŪ concept originated from DENSO's latest original equipment spark plug technology, the Super Ignition Plug (SIP). Until recently, this OE iridium Twin-Tip design could only be found in the most technologically advanced automobiles. But now DENSO is offering this cutting-edge technology in a brand new platinum/titanium design customized for today's value-minded automotive enthusiasts. The additional tip of the ground electrode results in less obstruction of the spark growth, while still maintaining the same gap. Less interference at the spark origin (quenching) means better ignitability for a more powerful and fuel-efficient combustion.
  • 1.1mm platinum center electrode using extremely durable Platinum alloy
  • Titanium-enhanced alloy ground electrode also increases durability
  • Minimum-quench electrode design
  • Improved fuel economy
  • Faster starts
  • Enhanced flame propagation for increased engine efficiency
Spark Plug Type Performance Differences

Resistance5000 Ohms
Ground Electrode Tip DesignTitanium Enhanced Twin-Tip
Ground ConfigurationTwin-Tip
Ground Electrode Core MaterialNickel
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialPlatinum
Gap Size0.040"
Ground Electrode Quantity1
Hex Size16.0 mm
Manufacturer Heat Range16
Seat TypeTapered
Reach18.00 mm
Alternate/OEM Part Number(s): PT16TT

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.). IMPORTANT A/C COMPRESSOR WARRANTY NOTE: In order to ensure that proper warranty credit is issued if needed, the compressor installation instructions must be adhered to. All compressors returned for defect must show proof of purchase of an A/C Orifice Tube (or A/C Expansion Valve), A/C Receiver Drier/Accumulator, and A/C System Flush or a Work Order showing the purchase of these items and that the system was flushed.