NGK 7159 TR55-1GP G-Power Platinum Spark Plug, 14mm Thread, Resistor

The NGK 7159 (TR55-1GP) G-Power Platinum spark plug gives you the performance and durability of platinum at an affordable price. It has a fine-wire platinum-tipped center electrode. This lowers the voltage the ignition system needs to fire the plug. The result is better starts, stronger acceleration and improved fuel economy compared with conventional plugs.

Key Features:

• Fine-wire platinum-tipped center electrode for better starting and throttle response
• Trapezoid-cut ground electrode reduces flame quenching
• Trivalent metal plating resists corrosion and seizing in the cylinder head
• Corrugated insulator ribs help prevent flashover
• Pure alumina silicate ceramic insulator for strength and good heat transfer
• Extended 3.0mm metal shell
• Pre-set gap of 1.5mm (0.054 in.)

Specifications:

• NGK stock number: 7159
• Manufacturer part number: TR55-1GP
• Thread size: 14mm
• Hex size: 5/8 in.
• Seat style: Tapered
• Heat range: 5
• Resistor: Yes
• Electrode tip material: Platinum
• Center electrode type: Projected
• UPC: 087295171592

Cross-references: ACDelco 41-811 and 41-824; Autolite AP5143, AP5144, AP5145, APP5143 and APP5144; Bosch 4012, 4212, 6715 and 8120; Champion 3024, 7020-2 and 7200; Motorcraft SP440, SP482, SP498 and SP504.

NGK has long been a leading OE supplier of spark plugs. The G-Power Platinum line is a dependable replacement that meets original-equipment standards for durability and ignition performance.