Denso 673-8203 Direct Ignition Coil

Denso 673-8203 Ignition Coil Overview

The Denso 673-8203 direct ignition coil is a 12-volt coil on plug unit built for precise spark delivery in select Hyundai and Kia applications. It is a black ignition coil engineered for 2003-2006 Hyundai Santa Fe, 2004-2006 Kia Amanti, and 2003-2005 Hyundai XG350 models with coil-on-plug ignition.

Key Features

• Direct ignition coil for coil-on-plug systems
• 12-volt electrical specification
• Black housing
• OE-style replacement for select Hyundai and Kia vehicles
• Part number 673-8203 for easy identification

Product Details

Denso’s Coil on Plug line focuses on stick coil technology for modern ignition systems. This 673-8203 ignition coil is built with Denso’s testing and inspection process to support consistent spark output and reliable ignition performance. It is a direct ignition coil for vehicles that use individual coils mounted at the spark plug, including Hyundai Santa Fe, Kia Amanti, and Hyundai XG350 applications.

This part cross-references Standard Ignition UF439 and NGK U4022 for the same application.

What This Part Helps Address

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

Installation Notes and Tips

Verify the coil-on-plug layout and match the connector style before installation. Confirm the vehicle year, make, and model against the listed fitment for 2003-2006 Hyundai Santa Fe, 2004-2006 Kia Amanti, and 2003-2005 Hyundai XG350. Inspect the spark plug and coil boot condition during service, and replace worn ignition components as needed to maintain proper ignition performance.

Quality Assurance

Denso applies controlled testing and inspection procedures to this ignition coil to support consistent build quality and dependable operation. The 673-8203 is part of Denso’s Coil on Plug product line, which is focused on direct ignition applications.