NGK 52009 Spark Plug Wire Set

Overview

NGK Spark Plug Wire Set 52009 is a specific-fit ignition wire set built for direct application coverage on select Mercury and Mazda vehicles. It uses silicone insulation and noise suppression construction to support stable spark delivery and reduced electrical interference.

Fits 2001-2002 Mercury Cougar, N/A. Fits 2000-2001 Mazda MPV, N/A, late design from VIN #177800 (last 6 digits).

Key Features

• Specific-fit spark plug wire set for targeted vehicle applications.
• Silicone insulation for heat resistance and flexible routing.
• Noise suppression design helps reduce ignition interference.
• SMag core material supports consistent ignition performance.
• Blue insulation for easy visual identification during service.

Detailed Description

NGK 52009 is part of the NGK Spark Plug Wire Set line, a product family focused on ignition replacement parts for domestic and import vehicles. The wire set is engineered with a specific-fit design, 8.00 mm insulation outside diameter, silicone insulation, and an SMag core to meet OE-level durability and operational requirements. For buyers searching for a Mercury Cougar spark plug wire set or a Mazda MPV ignition wire set, this part number provides a direct-match solution for the listed applications.

This part cross-references DENSO Auto Parts 671-6110 for the same application.

What It Helps Address

• Misfires caused by worn or degraded ignition wires.
• Electrical noise that can interfere with ignition system operation.
• Cracked or heat-aged wire insulation.
• Inconsistent spark delivery under load.

Installation Notes and Tips

Verify engine application and VIN break information before ordering, especially for the 2000-2001 Mazda MPV late-design fitment. Route each wire to match the original layout and confirm secure terminal engagement at the coil and spark plug ends.

Quality Assurance

NGK brings more OE ignition expertise globally than any other brand and manufactures premium ignition products to OE standards. The brand’s long-standing focus on ignition components supports dependable replacement quality for service work on Mercury Cougar and Mazda MPV applications.