NGK 7773 Spark Plug

NGK V-Power Spark Plug 7773 Overview

NGK V-Power Spark Plug 7773 is a tapered-seat spark plug built with a copper center electrode core, nickel center electrode tip, and nickel ground electrode components for dependable ignition performance. It features a 5,000 ohm resistor, a .040 pre-gap, and a standard single-ground configuration for OE-style service on select Ford applications.

Compatible With 1995 Ford Mustang and 1970-1972 Ford Mustang, this NGK spark plug supports direct replacement needs where the specified heat range, reach, and thread dimensions match the engine requirements. The NGK V-Power line is positioned as an OE-style spark plug family for drivers who want a straightforward replacement part with factory-style fitment characteristics.

Key Features

• NGK V-Power Spark Plug, part number 7773
• Copper center electrode core for stable conductivity
• Nickel center and ground electrode materials
• 5,000 ohm resistor for ignition system noise suppression
• .040 pre-gap and standard ground configuration
• Tapered seat, 14 mm thread diameter, 5/8 hex
• Heat range 6 with .46 reach

Detailed Product Description

Built under NGK’s V-Power spark plug line, this plug is engineered around OE-style dimensions and materials for consistent combustion support in the correct application. The UR6 design uses a copper core for efficient heat transfer, a nickel tip on the center electrode, and a standard ground electrode layout to match common factory ignition requirements. For 1995 Ford Mustang and 1970-1972 Ford Mustang applications listed here, part number 7773 provides the specified fitment profile, including the tapered seat and listed gap requirements.

NGK has long supplied original-equipment spark plugs for domestic and import vehicles, and that OE background is reflected in the dimensional accuracy and application coverage of this plug. This part cross-references Champion Spark Plug 13 and DENSO Auto Parts 5036 for the same application.

Common Issues This Spark Plug Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent spark delivery
• Misfire symptoms tied to excessive plug wear
• Reduced throttle response from degraded ignition performance
• Service replacement needs at the recommended maintenance interval

Installation Notes and Tips

Verify the engine calls for a tapered-seat plug with the listed 14 mm thread diameter, .46 reach, and heat range 6 before installation. Confirm the gap specification for the exact vehicle application; the fitment notes list .050" for the 1995 Ford Mustang and .034" for 1970-1972 Ford Mustang H.O. applications. Use proper spark plug service procedures and torque to the vehicle manufacturer’s specification.

Quality Assurance

NGK is a major OE spark plug supplier with decades of automotive manufacturing experience and global production and distribution support. Part number 7773 is built to OE-style standards for durability and operational consistency in the listed Ford Mustang applications.