Denso 3247 Spark Plug

Denso Double Platinum Spark Plug 3247

Denso Double Platinum spark plug 3247 is built for OE-style ignition performance, durability, and emissions control. It uses a platinum chip ground electrode and a platinum center electrode to support consistent spark delivery in a wide range of Honda, Acura, Jeep, Dodge, BMW, Mazda, Ram, Mitsubishi, and Ford applications.

The Double Platinum line focuses on stable ignition performance for engines that call for a flat-seat, 14 mm spark plug with a 19.00 mm reach and 1.1 pre-gap. This part number 3247 is a direct-fit option for many vehicles, including Honda Civic, Honda Accord, and Acura TL applications where the correct heat range and electrode design matter.

Key Features

• Double Platinum design with platinum center electrode and platinum chip ground tip
• 5000 ohm resistor for ignition noise suppression
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode core with standard ground configuration
• Pre-gapped at 1.1 for the specified application
• Flat seat, 14.00 mm thread diameter, 19.00 mm reach, 16.0 mm hex
• Manufacturer heat range 20 for OE-matched thermal control

Detailed Description

Denso Double Platinum 3247 is engineered to meet strict OE performance, durability, and emissions standards. The platinum-on-platinum electrode design helps maintain stable spark characteristics over time, while the copper core and nickel ground construction support efficient heat management and reliable ignition performance. For drivers servicing a Honda Civic, Honda Accord, Acura TL, or Jeep Grand Cherokee, this spark plug is built to match the original application requirements without changing the engine’s intended ignition setup.

This part cross-references DENSO Auto Parts PKJ20CR-L11 for the same application.

What It Helps Address

• Rough idle caused by worn spark plugs
• Hard starting from weak or inconsistent spark output
• Misfire conditions related to electrode wear
• Reduced fuel economy from incomplete combustion
• Emissions issues tied to degraded ignition performance

Installation Notes and Tips

Verify the engine’s required thread diameter, reach, seat type, and heat range before installation. Use the specified gap only if the application calls for adjustment, and inspect ignition coils, boots, and wires during service to avoid repeat misfire concerns. Confirm fitment for your exact year, make, and model before ordering; this part fits 2001-2011 Honda Civic, 2003-2007 Honda Accord, 2004-2008 Acura TL, 2005-2010 Jeep Grand Cherokee, and other listed applications.

• Fits 2007-2014 Honda Fit, N/A
• Fits 2002-2012 Jeep Liberty, N/A
• Fits 2011-2012 Ram 1500, N/A
• Fits 2008-2011 Dodge Nitro, N/A
• Fits 2001-2011 Honda Civic, N/A
• Fits 1998-1999 Honda Civic, N/A
• Fits 2003-2011 Honda Element, N/A
• Fits 2011 Ram Dakota, N/A
• Fits 2006-2010 BMW 550i, N/A
• Fits 2006-2010 BMW 650i, N/A
• Fits 2010 BMW X5, N/A
• Fits 2006 BMW X5, N/A
• Fits 2004-2010 Dodge Dakota, N/A
• Fits 2008-2010 Dodge Ram 1500, N/A
• Fits 2002-2006 Dodge Ram 1500, N/A
• Fits 2006-2010 Jeep Commander, N/A
• Fits 2005-2010 Jeep Grand Cherokee, N/A
• Fits 2007-2009 Acura MDX, N/A
• Fits 2004-2009 Dodge Durango, N/A
• Fits 2000-2009 Honda CR-V, N/A
• Fits 2006-2009 Mitsubishi Raider, N/A
• Fits 2005-2008 Acura RL, N/A
• Fits 2004-2008 Acura TL, N/A
• Fits 2004-2008 Acura TSX, N/A
• Fits 2006-2007 BMW 750i, N/A
• Fits 2006-2007 BMW 750Li, N/A
• Fits 2007 BMW X5, N/A
• Fits 2003-2007 Honda Accord, N/A
• Fits 1996-1997 Honda Accord, N/A
• Fits 2002-2006 Acura RSX, N/A
• Fits 1997-2005 Acura EL, N/A
• Fits 1994-2003 Dodge Ram 2500, N/A
• Fits 1994-2003 Dodge Ram 3500, N/A
• Fits 1992-2001 Honda Prelude, N/A
• Fits 2001 Mazda Millenia, N/A
• Fits 1995-1999 Mazda Millenia, N/A
• Fits 1999 Mazda Protege, N/A
• Fits 1989-1997 Ford Probe, N/A
• Fits 1990-1997 Mazda 626, N/A
• Fits 1990-1997 Mazda MX-6, N/A
• Fits 1991-1995 Mazda MPV, N/A
• Fits 1990-1993 Mazda B2600, N/A

Quality Assurance

Denso manufactures this spark plug to OE performance, durability, and emissions standards. The Double Platinum line is built around long-life electrode materials and application-specific specifications for dependable service in the listed vehicles.