Denso 673-6307 Direct Ignition Coil

Denso Direct Ignition Coil for Ford Super Duty

The Denso 673-6307 direct ignition coil is a black 12.0-volt stick coil built for direct-fire ignition systems. It is a fitment-based replacement for select Ford Super Duty applications, including Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford E-350 Super Duty models.

Key Features

• Direct ignition coil, stick coil design
• 12.0-volt electrical specification
• Black housing
• OE-style replacement for select Ford applications
• Denso part number 673-6307

Product Line Details

Denso Direct Ignition Coil - Stick Coil products are built around Denso’s ignition coil technology and inspection process. This product line focuses on consistent spark delivery and OE-level fit for vehicles that use individual coil-on-plug style ignition components.

Detailed Description

Denso 673-6307 is a direct ignition coil made for vehicles that use a stick coil configuration. It is listed for 2018-2022 Ford F-250 Super Duty, 2018-2022 Ford F-350 Super Duty, and 2018-2019 Ford E-350 Super Duty applications. This part cross-references Standard Ignition UF834 for the same application. If you are searching for a Ford F-250 Super Duty ignition coil, Ford F-350 Super Duty stick coil, or a Ford E-350 Super Duty direct ignition coil, this Denso unit matches the confirmed fitment data for those vehicles.

Common Issues This Part Can Address

• Engine misfire caused by a weak ignition coil
• Rough idle related to inconsistent spark output
• Hard starting from ignition coil failure
• Loss of power under load from degraded coil performance
• Check engine light triggered by ignition system faults

Installation Notes and Tips

Verify the original coil part number and connector style before installation. Confirm vehicle year and model against the listed fitment for 2018-2022 Ford F-250 Super Duty, 2018-2022 Ford F-350 Super Duty, and 2018-2019 Ford E-350 Super Duty. Inspect the coil boot, spark plug condition, and electrical connector during service to help prevent repeat ignition issues. The Denso 673-6307 should be installed on the confirmed application only.

Quality Assurance

Denso states that this stick coil line is backed by extensive testing and inspection to support consistent ignition performance and OE-level quality control. The Denso name is used on the part to identify the genuine product line and distinguish it from imitation replacements.