NGK 7548 Spark Plug

NGK V-Power Spark Plug 7548 Overview

NGK V-Power Spark Plug 7548 is a secondary ignition spark plug built around NGK’s long-standing OE manufacturing background. It uses a copper center electrode core, nickel center electrode tip, and a standard ground electrode design to support consistent ignition performance in the correct application.

The V-Power line focuses on dependable spark delivery and OE-style construction for drivers servicing ignition systems on vehicles such as Honda Civic and Toyota Corolla applications where the specified heat range and thread dimensions match the engine requirements.

Key Features

• NGK V-Power Spark Plug, part number 7548
• Part number BR9EYA / stock number 7548
• 5000 ohm resistance for ignition system compatibility
• Copper center electrode core with nickel tip material
• Nickel ground electrode core with standard tip design
• Pre-gapped to .032 inch
• 14.00 mm thread diameter, .75 inch reach, flat seat
• 13/16 hex size and non-removable nut terminal
• Manufacturer heat range 9

Product Details

NGK 7548 is engineered as a conventional spark plug with a standard single ground electrode and OE-style terminal design. The 5000 ohm resistance helps maintain proper electrical characteristics in the ignition circuit, while the copper core supports heat transfer and the nickel electrode materials provide a durable firing surface. This spark plug is specified with a .032 pre-gap, 14.00 mm thread diameter, .75 inch reach, and flat seat for direct replacement in the correct engine family.

This part cross-references AP Exhaust 7548 for the same application. For buyers searching by vehicle, this NGK spark plug 7548 is a direct-fit style service part for select Honda Civic and Toyota Corolla ignition maintenance when the engine calls for BR9EYA specifications.

Common Issues This Part Addresses

• Hard starting caused by worn or fouled spark plugs
• Misfire conditions from weak or inconsistent spark output
• Rough idle related to degraded ignition performance
• Reduced fuel economy from inefficient combustion
• Loss of throttle response from aged secondary ignition components

Installation Notes and Tips

Verify the engine’s required thread diameter, reach, seat type, heat range, and terminal style before installation. Confirm the gap specification against the vehicle service information, and inspect the ignition coil, plug wire, or boot condition at the same time to avoid repeat misfire concerns. Use the correct torque procedure for the cylinder head material and thread design.

Quality Assurance

NGK is a major OE spark plug supplier in North America with manufacturing and distribution support across domestic and global operations. The brand’s OE-focused production standards and automotive expertise support consistent part quality for ignition service.