NGK 52028 Spark Plug Wire Set

NGK Spark Plug Wire Set for Ford, Mazda, and Mercury

NGK Spark Plug Wire Set 52028 is a specific-fit ignition wire set built for select Ford, Mazda, and Mercury applications. It uses blue silicone insulation, a Ferro Mag core, and noise suppression to support stable spark delivery and reduced electrical interference.

Key Features

• Specific-fit spark plug wire set for confirmed vehicle applications
• Blue silicone insulation for heat resistance and durability
• Ferro Mag core construction for ignition performance
• Noise suppression type helps reduce radio-frequency interference
• 8.00 mm insulation outside diameter
• NGK part number 52028, also identified as RC-FDZ070

Detailed Description

NGK Spark Plug Wire Set 52028 is part of the NGK Spark Plug Wire Set line, a product family focused on OE-style ignition replacement parts for domestic and import vehicles. NGK draws on long-term OE experience and controlled manufacturing standards to deliver ignition components that match the needs of everyday repair and maintenance work. This wire set is built for specific applications, including 2001-2004 Ford Escape, 2000-2004 Ford Focus, 2001-2004 Mazda Tribute, 2002 Mercury Cougar, 2000 Ford Contour, and 2000 Mercury Mystique, with 1999 Ford Contour and 1999 Mercury Mystique coverage from 5/3/1999.

This part cross-references DENSO Auto Parts 671-4061 and Standard Ignition 6465 for the same application.

Common Issues This Part May Address

• Misfires caused by worn or damaged spark plug wires
• Hard starting related to weak ignition transfer
• Rough idle from inconsistent spark delivery
• Radio interference linked to degraded suppression performance
• Cracked or heat-aged wire insulation

Installation Notes and Tips

Verify engine application before installation and match the wire routing to the original layout. Inspect spark plugs, coil connections, and boots at the same time to avoid repeat ignition faults. For fitment, use the exact vehicle listing: Fits 2001-2004 Ford Escape, N/A; Fits 2000-2004 Ford Focus, N/A; Fits 2001-2004 Mazda Tribute, N/A; Fits 2002 Mercury Cougar, N/A; Fits 2000 Ford Contour, N/A; Fits 2000 Mercury Mystique, N/A; Fits 1999 Ford Contour, N/A, from 5/3/1999; Fits 1999 Mercury Mystique, N/A, from 5/3/1999.

Quality Assurance

NGK manufactures ignition products to meet OE standards for durability and operational performance. The brand’s global OE background and North American distribution support consistent product availability and application coverage. Part number 52028 is built to the specifications listed above for confirmed vehicle fitment.