Denso 673-8205 Direct Ignition Coil

Denso Direct Ignition Coil 673-8205

Denso 673-8205 is a direct ignition coil in the Coil on Plug line, built for 12-volt systems and finished in black. It is a fitment-specific ignition coil for select Hyundai and Kia applications, including Sonata, Santa Fe, and Optima models.

Key Features

• Direct ignition coil for Coil on Plug applications
• 12-volt electrical specification
• Black housing
• OE-style replacement for select Hyundai and Kia vehicles
• Denso coil on plug product line for ignition service

Product Details

Denso developed its stick coil technology with extensive testing and inspection to support consistent ignition performance. Part number 673-8205 is engineered for direct ignition use on specific Hyundai Sonata, Hyundai Santa Fe, and Kia Optima applications, making it a practical replacement when diagnosing ignition-related drivability concerns. This part cross-references NGK U4006 for the same application.

Vehicle Fitment

• Fits 1999-2005 Hyundai Sonata, Coil on Plug.
• Fits 2001-2004 Hyundai Santa Fe, Coil on Plug.
• Fits 2001-2006 Kia Optima, Cylinder 2 & 4; Coil on Plug.

Common Issues This Coil May Address

• Engine misfire under load
• Rough idle or hesitation
• Hard starting related to weak ignition output
• Check engine light from ignition coil fault codes
• Intermittent spark loss on Coil on Plug systems

Installation Notes

Verify the part number and vehicle application before installation. Inspect the spark plug, coil connector, and related wiring for wear or contamination during service. On Coil on Plug systems, a damaged plug or connector can affect coil performance, so confirm the full ignition circuit is in good condition before final assembly.

Quality Assurance

Denso backs this ignition coil with its established testing and inspection process used across its Coil on Plug product line. The 673-8205 is built to meet the demands of direct ignition service on confirmed Hyundai and Kia applications.