Denso 4505 Spark Plug

Denso Platinum TT 4505 Spark Plug

Denso Platinum TT 4505 is a secondary ignition spark plug built for direct OE-style replacement in a wide range of Toyota, Nissan, Hyundai, Kia, Jeep, Ram, and Chrysler applications. Its twin-tip layout is engineered to promote faster flame travel for more complete combustion, with a platinum center electrode and titanium-enhanced ground strap for consistent ignition performance.

Key Features

• Twin-Tip design for quicker flame propagation
• Platinum center electrode for durable spark delivery
• Titanium enhanced twin-tip ground electrode design
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode core material
• 5000 ohm resistance
• Pre-gapped to 1.0 mm
• Flat seat, 14.00 mm thread diameter, 26.50 mm reach, 16.0 mm hex size

Product Details

The Denso Platinum TT line focuses on stable ignition and efficient combustion through a twin-tip electrode arrangement. That design helps the spark kernel develop quickly, which supports smoother engine operation and reliable throttle response in vehicles such as the Toyota Camry, Toyota RAV4, Nissan Frontier, and Hyundai Santa Fe. Part number 4505 is a practical OE-style spark plug choice for drivers maintaining factory ignition specifications.

This part cross-references DENSO Auto Parts PKH16TT for the same application.

Common Symptoms It Can Address

• Rough idle caused by worn spark plugs
• Hard starting from weak ignition output
• Misfire codes related to degraded plug performance
• Reduced fuel economy from incomplete combustion
• Sluggish acceleration from inconsistent spark delivery

Installation Notes and Fitment

Verify engine application, thread reach, seat type, and gap before installation. Compatible With 2000-2017 vehicle applications listed in the fitment data, including Fits 2010-2015 Toyota Camry, N/A; Fits 2009-2017 Toyota RAV4, N/A; Fits 2005-2015 Nissan Frontier, N/A; and Fits 2010-2013 Hyundai Tucson, N/A. Additional coverage includes Fits 2015-2017 Jeep Renegade, N/A and Fits 2016-2017 Fiat 500X, N/A. Some applications note special service requirements such as two spark plugs per cylinder or model-date restrictions, so confirm the exact engine build before ordering. Part number 4505 should be matched to the vehicle’s OE specification and ignition system layout.

Quality Assurance

Denso manufactures the Platinum TT series with OE-focused materials and electrode construction for consistent ignition performance and long service life. The platinum center electrode and titanium-enhanced twin-tip ground design are selected to support dependable combustion control across the listed Toyota, Nissan, Hyundai, Kia, Chrysler, Jeep, Ram, and Lexus applications.