NGK 7373 Spark Plug

NGK V-Power Spark Plug 7373 Overview

NGK V-Power Spark Plug 7373 is a copper-core spark plug built for stable ignition performance and OE-style serviceability. It uses a standard ground electrode design, a nickel center electrode tip, and a 0.040 in. pre-gap to support consistent spark delivery in the applications listed below.

The V-Power line focuses on practical ignition performance with a standard configuration that matches common factory-style service requirements. This NGK 7373 spark plug is a direct-fit option for select Mercedes-Benz SLK230, Ford Escort, and Mercury LN7/Lynx applications.

Key Features

• NGK V-Power Spark Plug, part number 7373
• Copper center electrode core material for dependable conductivity
• Nickel center electrode tip and nickel ground electrode tip design
• Standard ground configuration with one ground electrode
• 0.040 in. pre-gap for listed applications
• 5 k? resistance
• 14 mm thread diameter, 0.75 in. reach, flat seat
• 5/8 in. hex size for standard service tools

Product Details

NGK builds this V-Power spark plug as an OE-style ignition component backed by the company’s long history as a major original equipment supplier in North America. The FR5 heat range, non-removable nut terminal, and standard electrode layout make this plug a straightforward replacement for vehicles that call for the listed specifications. For shoppers searching NGK 7373, FR5, or a V-Power spark plug for Mercedes-Benz SLK230, Ford Escort, or Mercury LN7/Lynx, this part matches the documented fitment and core dimensions.

This part cross-references Carlson 7554 and OSC 2071 for the same application.

What It Helps Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent spark delivery
• Misfire conditions tied to aged ignition components
• Reduced throttle response from weak combustion events
• Maintenance intervals requiring spark plug replacement

Installation Notes and Tips

Verify the vehicle’s required heat range, thread diameter, reach, seat type, and gap before installation. This plug is listed with a 0.040 in. pre-gap, and fitment notes also reference 0.039 in. or 0.044 in. gap requirements depending on application. Use the correct spark plug socket for the 5/8 in. hex and confirm the terminal style matches the ignition lead or coil connection.

Fits 1998-2000 Mercedes-Benz SLK230, N/A. Fits 1982 Mercury LN7, N/A. Fits 1981 Ford Escort, N/A. Fits 1981 Mercury Lynx, N/A.

Quality Assurance

NGK is a long-established OE supplier with broad coverage across automotive, motorcycle, marine, and small engine applications. The brand’s manufacturing and distribution network supports consistent product standards for replacement ignition parts such as the NGK 7373 V-Power Spark Plug.