Denso 673-8310 Direct Ignition Coil

Denso 673-8310 Direct Ignition Coil

The Denso 673-8310 is a direct ignition coil for select Hyundai and Kia applications that use coil-on-plug ignition. Built around a 12-volt design and finished in gray, it supports reliable spark delivery for engines that depend on precise ignition timing.

Denso’s Coil on Plug line focuses on stick coil technology with testing and inspection processes aimed at consistent electrical performance and fit. For buyers searching for a Denso ignition coil for Hyundai Sonata, Kia Optima, or Kia Sportage, this part number 673-8310 is a direct replacement option.

Key Features

• Direct ignition coil for coil-on-plug systems
• 12-volt electrical specification
• Gray housing
• OE-style replacement for select Hyundai and Kia vehicles
• Part number: 673-8310

Detailed Description

This Denso Coil on Plug ignition coil is engineered for direct ignition applications where each cylinder uses an individual coil mounted at the spark plug. It is a practical replacement for drivers looking for a Hyundai Sonata ignition coil, Kia Optima ignition coil, or Kia Sportage ignition coil with confirmed fitment across model years listed below. This part cross-references Standard Ignition UF647 for the same application.

Compatible With: Fits 2013-2016 Hyundai Santa Fe Sport, N/A; Fits 2011-2016 Kia Sportage, N/A; Fits 2011-2015 Kia Optima, N/A; Fits 2011-2014 Hyundai Sonata, N/A.

What It Helps Solve

• Engine misfire caused by a weak or failing ignition coil
• Rough idle related to inconsistent spark output
• Hard starting from poor coil performance
• Loss of acceleration response tied to ignition breakdown
• Check engine light conditions associated with ignition coil faults

Installation Notes and Tips

Verify the part number and connector style before installation. Inspect the spark plug, coil boot area, and wiring connector for wear or contamination while servicing the ignition system. Use the vehicle’s service information for torque and diagnostic procedures, and confirm the cylinder location against the original coil.

Quality Assurance

Denso applies superior testing and inspection processes to its ignition coil production to support consistent quality and fit. The Coil on Plug product line reflects Denso’s experience with stick coil technology for modern direct ignition systems.