Denso 5092 Spark Plug

Denso Double Platinum Spark Plug 5092

Denso Double Platinum Spark Plug 5092 is built for OE-style ignition performance in a wide range of Ford, Cadillac, Buick, Pontiac, Mazda, and Oldsmobile applications. It uses platinum on the center electrode and a platinum chip ground tip to support consistent spark delivery and long service life.

Key Features

• Double Platinum design with platinum center electrode tip and platinum chip ground tip
• 5000 ohm resistance for ignition system noise control
• Copper center electrode core for efficient heat transfer
• Nickel ground electrode core with standard ground configuration
• Pre-gapped to 1.3 mm
• Tapered seat, 14.00 mm thread diameter, 19.00 mm reach, and 16.0 mm hex size
• Manufacturer heat range 16 for specified OE applications

Product Details

The Denso Double Platinum line is engineered for drivers who want an OE-matched spark plug design with durable electrode materials and stable ignition characteristics. Part number 5092 cross-references Denso Auto Parts PT16EPR13 and General Motors 12571535 for the same application. This spark plug is manufactured to meet strict original-equipment performance, durability, and emissions standards, making it a direct-service choice for vehicles such as the Ford Transit Connect, Ford Focus, and Cadillac DTS.

What It Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weak or inconsistent spark output
• Misfire conditions related to plug wear or incorrect gap
• Reduced fuel economy from degraded ignition performance
• Emissions issues tied to aging secondary ignition components

Installation Notes

Verify engine application, thread diameter, reach, seat type, and heat range before installation. Use the specified gap setting of 1.3 mm unless the vehicle service information calls for a different adjustment. Inspect ignition coils, boots, and wires during service so the new plug can perform as intended. Fits 2010-2012 Ford Transit Connect, N/A. Fits 2008-2011 Ford Focus, N/A. Fits 2011 Ford Ranger, N/A. Fits 2006-2011 Cadillac DTS, N/A. Fits 2007-2010 Cadillac STS, N/A. Fits 2008-2009 Cadillac SRX, N/A. Fits 2007-2009 Cadillac XLR, N/A. Fits 2006-2011 Buick Lucerne, N/A. Fits 2000-2005 Cadillac DeVille, N/A. Fits 2000-2004 Cadillac Seville, N/A. Fits 2000-2002 Cadillac Eldorado, N/A. Fits 2004-2005 Pontiac Bonneville, N/A. Fits 2004 Mazda 3, N/A. Fits 2003 Mazda 6, N/A. Fits 2001-2003 Oldsmobile Aurora, N/A.

Quality Assurance

Denso manufactures this spark plug to OE performance, durability, and emissions standards for specified vehicle applications. The Double Platinum construction is selected to support consistent ignition service in the listed fitments.