Denso 673-1312 Direct Ignition Coil

Denso Direct Ignition Coil for Toyota and Lexus

The Denso 673-1312 direct ignition coil is a stick coil replacement for select Toyota and Lexus applications. Built around a 12.0-volt design with a black housing, it supports reliable spark delivery for vehicles that use coil-on-plug ignition systems.

For drivers searching for a Denso 673-1312 ignition coil for Toyota Highlander, Camry, Sienna, Avalon, or Lexus RX330 and ES330, this OE-quality replacement follows the original stick coil format used on many 1999-2010 applications.

Key Features

• Direct ignition coil, stick coil style
• 12.0-volt electrical specification
• Black housing
• OE-quality replacement for select Toyota and Lexus vehicles
• Backed by Denso’s testing and inspection process for ignition coil production

Product Details

Denso is a recognized name in stick coil technology, and the 673-1312 is built for direct ignition systems that mount at the spark plug. This part number is used across a wide range of Toyota and Lexus models, including the Toyota Highlander, Camry, Sienna, Avalon, and Lexus RX330, RX300, ES300, and ES330. If you are replacing a failing coil on a Toyota Highlander or Lexus RX330, this Denso 673-1312 direct ignition coil provides the correct OE-style format for the application.

This part cross-references Beck/Arnley 178-8315 and NGK 48930 for the same application.

Common Replacement Reasons

• Engine misfire under load or at idle
• Rough running after startup
• Check engine light related to ignition coil performance
• Hard starting caused by weak spark output
• Loss of power from inconsistent coil operation

Installation Notes

Verify the part number against your original coil and confirm vehicle year, make, and model before installation. This direct ignition coil is intended for coil-on-plug systems and should be matched to the correct cylinder application on the vehicle. Inspect the spark plug and connector condition during replacement to help avoid repeat ignition faults.

Quality Assurance

Denso applies controlled testing and inspection procedures to its ignition coil production to maintain OE-level consistency. The 673-1312 is an OE-quality replacement part built for the specified Toyota and Lexus fitments.