Denso 673-6006 Direct Ignition Coil

Denso 673-6006 Ignition Coil Overview

The Denso 673-6006 direct ignition coil is a coil-on-plug replacement built for 12-volt ignition systems. It is a black, female-tower coil with four towers, made for Ford, Mazda, and Mercury applications that use coil-on-plug ignition.

Denso’s Coil on Plug line focuses on stick coil technology with controlled testing and inspection at the manufacturing level. That approach supports consistent spark delivery and dependable ignition performance in vehicles such as the Ford Escape, Ford Focus, and Mazda Tribute.

Key Features

• Direct ignition coil for coil-on-plug applications
• 12-volt electrical specification
• Black housing
• Four female towers
• Denso Coil on Plug product line
• Part number 673-6006 for easy lookup

Detailed Product Description

The Denso 673-6006 is a direct ignition coil engineered for vehicles that use coil-on-plug ignition architecture. It is a practical replacement for ignition systems in the 1999-2004 Ford Contour, 2000-2004 Ford Focus, 2001-2004 Ford Escape, 2000 Mercury Mystique, 1999 Mercury Mystique, and 2001-2004 Mazda Tribute. This part number, 673-6006, is commonly searched by buyers looking for an OE-style ignition coil replacement for Ford Focus and Ford Escape applications.

This part cross-references Motorcraft DG 536 and NGK U2103 for the same application.

What This Ignition Coil Helps Address

• Engine misfire caused by weak or inconsistent spark output
• Hard starting related to ignition coil failure
• Rough idle from degraded coil performance
• Loss of acceleration response under load
• Check engine light conditions tied to ignition coil faults

Installation Notes and Tips

Verify the vehicle’s ignition system layout before ordering, since this coil is listed for coil-on-plug applications only. Match the connector style, tower configuration, and model-year fitment before installation. For best results, inspect spark plugs and related ignition components at the same time, since worn plugs can place added stress on the coil.

Quality Assurance

Denso applies controlled testing and inspection processes to this Coil on Plug product line to support consistent ignition performance. The brand positions this line as a precision replacement option for drivers who want a direct ignition coil built to OE-level expectations.