Denso 673-6300 Direct Ignition Coil

Denso 673-6300 Direct Ignition Coil

The Denso 673-6300 direct ignition coil is a coil-on-plug ignition component built for Ford and Lincoln applications that require stable 12-volt operation. It is a gray ignition coil designed for direct replacement use on select Transit, Explorer, Flex, Taurus, Expedition, F-150, MKT, MKS, and Navigator models.

Key Features

• 12-volt direct ignition coil for coil-on-plug systems
• Gray housing for OE-style application matching
• Built by Denso, a supplier known for stick coil technology and inspection-focused manufacturing
• Direct replacement part number 673-6300
• Fits select Ford Transit-150, Transit-250, Transit-350, Transit-350 HD, Explorer, Flex, Taurus, Expedition, F-150, and Lincoln MKT, MKS, Navigator applications

Product Details

Denso Coil on Plug part number 673-6300 is a direct ignition coil for vehicles using individual coil-on-plug ignition systems. Denso’s product line is centered on stick coil technology, with testing and inspection processes used to maintain consistent ignition performance and build quality. This part is listed for 2011-2022 Ford and Lincoln applications, including 2011-2016 Ford F-150, 2013-2019 Ford Explorer, 2015-2021 Ford Transit-150, and 2015-2017 Lincoln Navigator. It also fits 2022 Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD as original equipment part applications.

This part cross-references Motorcraft DG 549 and Standard Ignition UF646 for the same application.

What It Helps Address

• Engine misfire caused by weak ignition output
• Rough idle related to coil failure
• Hard starting from inconsistent spark delivery
• Loss of power under load from ignition breakdown
• Check engine light conditions tied to ignition coil faults

Installation Notes

Verify the vehicle year, make, model, and engine-specific coil-on-plug application before ordering. Confirm the connector style and mounting location match the original coil on the vehicle. For best results, inspect spark plugs and related ignition components during replacement, since worn plugs can place extra demand on the coil. Use the vehicle service information for torque and diagnostic procedures.

Quality Assurance

Denso conducts testing and inspection processes to support consistent ignition coil quality. This 673-6300 coil is built as a direct ignition replacement for select Ford and Lincoln coil-on-plug applications.