The DENSO Platinum TT Spark Plug PK16TT (4503) is engineered to deliver both economy and performance. Featuring twin-tip technology with an 11mm platinum center electrode and 11mm titanium-enhanced ground electrode, it promises long-lasting durability and improved ignition capabilities.

Key Features

  • Twin-tip technology
    Platinum center electrode
    Titanium-enhanced ground electrode

Features and Specs for Each Model

  • Thread size: 14mm
    Hex size: 5/8″ (16mm)


  • Enhanced ignitability
    Increased fuel efficiency


  • It may not fit all vehicle models

Amazon Customer Review

★★★★★ “These spark plugs boosted my fuel economy by a noticeable margin. Highly recommended!” – Karen T.


DENSO Platinum TT Spark Plugs PK16TT (4503) offer an excellent blend of durability and performance, making them an ideal choice for those seeking improved fuel efficiency and engine responsiveness.