NGK 52166 Spark Plug Wire Set

NGK Spark Plug Wire Set 52166 Overview

NGK Spark Plug Wire Set 52166 is a specific-fit ignition wire set built for 1991-1996 Ford Escort and 1991-1996 Mercury Tracer applications. It uses blue silicone insulation, noise suppression, and an SMag core to support stable spark delivery in the ignition system.

As part of the NGK Spark Plug Wire Set line, this replacement wire set reflects NGK’s long OE-focused background in ignition components for domestic and import vehicles. The 52166 part number is also referenced as RC-FDZ034.

Key Features

• Specific-fit spark plug wire set for confirmed Ford Escort and Mercury Tracer applications
• Blue silicone insulation for heat-resistant wire construction
• Noise suppression type included to help reduce ignition interference
• SMag core material for ignition signal transfer
• 8.00 mm insulation outside diameter
• NGK part number 52166, stock number 52166, reference RC-FDZ034

Detailed Description

NGK 52166 is an ignition wire set engineered for direct replacement on 1991-1996 Ford Escort and 1991-1996 Mercury Tracer models. If you are searching for a spark plug wire set for Ford Escort 1991-1996 or Mercury Tracer 1991-1996, this specific-fit NGK set matches the listed applications and supports consistent ignition performance.

NGK’s ignition product line is built around OE experience and broad vehicle coverage, with manufacturing and distribution support in North America and globally. For buyers comparing NGK 52166 spark plug wires, the combination of silicone insulation, noise suppression, and SMag core construction makes it a practical replacement choice for aging ignition wiring.

This part cross-references DENSO Auto Parts 671-4057 for the same application.

Common Issues This Part Can Address

• Misfires caused by worn or deteriorated plug wires
• Hard starting related to weak spark transfer
• Ignition noise that can interfere with electrical operation
• Cracked or heat-aged wire insulation
• Rough idle from inconsistent spark delivery

Installation Notes and Tips

Verify the vehicle application before installation and route each wire to match the original layout. Inspect the distributor cap, spark plugs, and coil components at the same time, since worn ignition parts can affect wire performance. Use the existing wire routing and firing order for the 1991-1996 Ford Escort and 1991-1996 Mercury Tracer to avoid crossfire or misconnection.

Quality Assurance

NGK manufactures ignition components to meet OE-level durability and performance expectations. The 52166 wire set is part of NGK’s ignition specialist product range, backed by the brand’s long-standing focus on spark plugs, coils, boots, and wire sets for domestic and import vehicles.