Denso 4713 Spark Plug

Denso Iridium TT Spark Plug 4713

Denso Iridium TT 4713 is an OE-style spark plug built for consistent ignition performance, durability, and responsive power delivery. It combines iridium and platinum twin-tip electrode technology with a copper core and nickel ground electrode for stable spark characteristics in a wide range of GM, Ford, Mazda, Mercedes-Benz, and other applications.

The Iridium TT line focuses on balancing long service life with stronger combustion efficiency. For drivers searching for a Denso 4713 spark plug for Chevrolet Silverado 1500, GMC Sierra 2500 HD, or Ford F-150 applications, this plug is built around precise electrode design and OE-style fitment dimensions.

Key Features

• Iridium center electrode tip with platinum twin-tip ground design
• OE-style durability with performance-oriented spark delivery
• 0.4 mm iridium and 0.7 mm platinum twin-tip technology noted in fitment data
• 5000 ohm resistor for ignition system noise control
• Copper core center electrode for efficient heat transfer
• Tapered seat, 14.0 mm thread diameter, 18.0 mm reach, and 16.0 mm hex size
• Manufacturer heat range 16 and pre-gap size of 1.0

Product Details

This Denso Iridium TT spark plug is engineered for vehicles that call for a tapered-seat plug with the listed thread, reach, and hex specifications. The iridium center electrode and platinum twin-tip ground configuration support consistent spark formation, while the copper core and nickel ground electrode materials help manage heat and durability in daily driving and heavier-duty use. Part number 4713 is also referenced as Denso IT16TT for cross-reference purposes.

Compatible With applications including 2017-2019 Chevrolet Silverado 2500 HD, 2017-2019 GMC Sierra 3500 HD, 1999-2013 Ford F-150, and 2001-2016 Chevrolet Silverado 2500. This part cross-references DENSO Auto Parts IT16TT for the same application.

Common Issues This Part Helps Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weak or inconsistent ignition output
• Misfire conditions related to plug wear or gap degradation
• Reduced throttle response from inefficient combustion
• Maintenance intervals that call for OE-style spark plug replacement

Installation Notes and Tips

Verify the tapered seat, 14.0 mm thread diameter, 18.0 mm reach, 16.0 mm hex size, and heat range before installation. Confirm vehicle-specific fitment by year, make, and model, since this plug is used across many Chevrolet, GMC, Ford, Cadillac, Mazda, and Mercedes-Benz applications. Follow the manufacturer’s torque specification and inspect ignition components for wear before installing new plugs.

Quality Assurance

Denso Iridium TT plugs are built to OE-style standards with a performance-focused twin-tip electrode design. The construction combines iridium, platinum, copper, and nickel materials to support durability and stable ignition performance across the listed applications.