NGK 2815 Spark Plug

NGK G-Power Spark Plug 2815 Overview

NGK G-Power Spark Plug 2815 is a tapered-seat spark plug built for consistent ignition performance in a wide range of GM applications. It combines a copper core center electrode with a platinum tip and a nickel ground electrode to support stable spark delivery, reliable starting, and smooth engine operation.

Compatible With 1987-2011 Buick, Chevrolet, Pontiac, Saturn, Cadillac, and Oldsmobile applications, this NGK spark plug is a direct-service option for drivers maintaining OE-style ignition performance. The NGK 2815 is also referenced as TR4GP and is commonly searched for by vehicle owners looking for a spark plug for Chevrolet Impala, Malibu, and Pontiac G6 applications.

Key Features

• NGK G-Power Spark Plug line for OE-style ignition service
• Part number 2815 / TR4GP
• Platinum center electrode tip for durable spark delivery
• Copper core center electrode for efficient heat transfer
• Nickel ground electrode with trapezoid tip design
• 5,000 ohm resistance for ignition system compatibility
• Pre-gapped at .040 inches; some listed applications require adjustment to 0.044 or 0.045 inches
• Tapered seat, 14 mm thread diameter, 5/8 hex size, .708 reach

Product Details

NGK builds this G-Power spark plug to meet original equipment standards for durability and operational consistency. The platinum-tipped center electrode helps maintain dependable ignition performance over time, while the copper core supports heat dissipation under normal engine loads. With a standard ground configuration and non-removable nut terminal, this plug is suited to service work where correct fitment and proper gap setting matter.

This part cross-references Autolite AP106 for the same application. It is frequently selected for Chevrolet Impala, Chevrolet Malibu, and Pontiac G6 tune-up service where the correct spark plug specification is required.

What This Spark Plug Helps Address

• Hard starting caused by worn ignition components
• Rough idle from inconsistent spark delivery
• Misfire conditions related to plug wear or incorrect gap
• Reduced throttle response from degraded ignition performance
• Maintenance replacement for high-mileage GM ignition service

Installation Notes and Fitment Tips

Verify the required gap before installation. Listed applications call for either 0.044-inch or 0.045-inch gap settings, depending on the vehicle and engine calibration. Use the vehicle service information for the exact specification before installing NGK 2815.

• Fits 2009-2011 Buick Lucerne, N/A
• Fits 2006-2011 Chevrolet Impala, N/A
• Fits 2006-2010 Chevrolet Malibu, N/A
• Fits 2006-2010 Pontiac G6, N/A
• Fits 2008-2010 Saturn Vue, N/A
• Fits 2006-2009 Chevrolet Uplander, N/A
• Fits 2006-2009 Pontiac Montana, N/A
• Fits 2007-2008 Saturn Aura, N/A
• Fits 2006-2007 Buick Terraza, N/A
• Fits 2006-2007 Chevrolet Monte Carlo, N/A
• Fits 2006-2007 Saturn Relay, N/A
• Fits 1987-1994 Chevrolet Cavalier, N/A
• Fits 1990-1994 Chevrolet Lumina, N/A
• Fits 1991-1994 Pontiac Sunbird, N/A
• Fits 1993 Buick Century, N/A
• Fits 1987-1989 Buick Century, N/A
• Fits 1988-1993 Buick Regal, N/A
• Fits 1987-1993 Chevrolet Corsica, N/A
• Fits 1993 Oldsmobile Cutlass Ciera, N/A
• Fits 1987-1989 Oldsmobile Cutlass Ciera, N/A
• Fits 1988-1993 Oldsmobile Cutlass Supreme, N/A
• Fits 1988-1993 Pontiac Grand Prix, N/A
• Fits 1987-1991 Chevrolet Cavalier, N/A
• Fits 1987-1991 Chevrolet Corsica, N/A
• Fits 1987-1991 Pontiac 6000, N/A
• Fits 1987-1991 Pontiac Tempest, N/A
• Fits 1987-1990 Chevrolet Celebrity, N/A
• Fits 1987-1989 Buick Skyhawk, N/A
• Fits 1987-1989 Oldsmobile Cutlass Cruiser, N/A
• Fits 1987-1988 Cadillac Cimarron, N/A
• Fits 1987-1988 Oldsmobile Firenza, N/A
• Fits 1987 Oldsmobile Firenza, N/A

Quality Assurance

NGK is a long-established OE supplier with broad coverage across domestic and import vehicles in North America. The brand’s manufacturing and distribution network supports consistent product standards for ignition service, and the 2815 spark plug reflects NGK’s focus on OE-level durability and performance.