NGK 2248 Spark Plug

NGK V-Power Spark Plug for OE-Style Ignition Service

NGK V-Power Spark Plug 2248 is built for drivers who want an OE-equivalent replacement with the dimensions and heat range needed for a wide range of older GM applications. This spark plug uses a copper center electrode core, nickel center and ground electrode tips, and a tapered seat for consistent ignition service in compatible vehicles.

Key Features

• NGK V-Power Spark Plug line for OE-style secondary ignition service
• Part number 2248, also identified as NGK UR55
• 5000 ohm resistance for standard ignition system operation
• 0.060 in pre-gap size for listed applications
• Copper center electrode core with nickel center electrode tip
• Nickel ground electrode with standard ground configuration
• 14 mm thread diameter, 5/8 hex size, tapered seat
• Manufacturer heat range 5 and 0.46 in reach

Product Details

NGK 2248 is a V-Power spark plug designed around original-equipment style specifications, making it a direct service choice for many Chevrolet, GMC, Buick, Oldsmobile, and Pontiac vehicles. The copper core supports stable ignition performance, while the nickel electrode materials and standard single-ground design match the needs of many legacy engines. This part cross-references Autolite 664 for the same application.

Compatible vehicle coverage includes applications such as Fits 1985-1993 Chevrolet S10, N/A; Fits 1991-1993 GMC Sonoma, N/A; Fits 1985-1992 Buick Century, N/A; Fits 1990-1992 Chevrolet Lumina, N/A; and Fits 1985-1992 Oldsmobile Cutlass Ciera, N/A. It also covers additional GM platforms including Chevrolet Astro, Chevrolet Celebrity, GMC Safari, Pontiac Grand Am, Pontiac Fiero, and Pontiac Firebird across the listed years.

Common Service Issues Addressed

• Hard starting caused by worn spark plug electrodes
• Rough idle from aged ignition components
• Misfire complaints under load or during acceleration
• Reduced fuel economy from inconsistent spark delivery
• Maintenance replacement at the listed 30,000-mile OE service interval

Installation Notes and Tips

Verify the 0.060 in gap before installation and confirm the tapered seat, 14 mm thread diameter, 5/8 hex, and 0.46 in reach match the engine specification. Use the vehicle’s service information for torque and plug routing, and inspect ignition wires, distributor components, and coil output during spark plug replacement. Fits 1985-1993 Chevrolet S10, N/A; Fits 1991-1993 GMC Sonoma, N/A; Fits 1985-1992 Buick Century, N/A.

Quality Assurance

NGK is a long-established OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. The brand’s manufacturing focus on OE standards and broad vehicle coverage supports dependable service for the listed applications, including Chevrolet S10, GMC Sonoma, and Buick Century models.