NGK 5838 Laser Platinum Spark Plug PFR5N-11 Fine Wire 14mm

The NGK 5838 Laser Platinum spark plug (PFR5N-11) is a resistor-type, fine wire platinum spark plug built to OE standards. It is made for engines that originally came with fine wire platinum alloy plugs. Compared with conventional nickel spark plugs, it gives higher ignitability and a longer service life. It supports stable idling, strong anti-fouling performance, better fuel efficiency and lower emissions.

Key Features:

• Platinum alloy fine wire center electrode that wears longer and handles higher temperatures better than nickel plugs
• Platinum tip on the ground electrode for even wear and good ignitability and service life in distributorless ignition systems, unless the OE design specifies otherwise
• Solid copper core, 98 percent pure, for heat dissipation, conductivity and a wide heat range
• High-grade alumina ceramic insulator that helps prevent overheating and supports reliable starts
• Trivalent metal plating that resists corrosion and seizing, so the plug installs and removes more easily

Specifications:

• NGK part number: 5838 (service number PFR5N-11)
• Thread diameter: 14 mm
• Reach: 0.750 in.
• Hex size: 5/8 in. (16 mm)
• Heat range: 5
• Seat type: flat (gasket seat) with a crush washer
• Pre-gap: 0.044 in. (1.1 mm)
• Center electrode: platinum tip, fine wire, copper core
• Ground electrode: platinum tip, nickel core, single J-gap
• Resistor type

Cross-references: Denso 4503, 4701, IK16TT and PK16TT; Champion RC10PYP4B4; Torch K5RTPP-11.

NGK is a leading OE supplier of spark plugs, and the Laser Platinum line is made for reliable, long-lasting ignition performance.