Denso 673-2318 Direct Ignition Coil

Denso 673-2318 Stick Coil for Acura

Denso 673-2318 is a direct ignition coil built for 12-volt systems and finished in gray. As part of Denso’s Stick Coil line, it is engineered for precise ignition performance in applications such as the Acura RDX and Acura TSX.

Key Features

• Direct ignition coil for coil-on-plug applications
• 12-volt electrical specification
• Gray housing
• Denso Stick Coil product line
• OE-style fitment for select Acura vehicles

Fitment and Application

Compatible with 2007-2012 Acura RDX, N/A, Stick Coil. Compatible with 2004-2008 Acura TSX, N/A, Stick Coil. This part cross-references NGK 48699 and Standard Ignition UF417 for the same application.

The Denso 673-2318 ignition coil is intended for drivers replacing a failed coil in select Acura models. It supports direct ignition systems used on the Acura RDX and Acura TSX, helping restore consistent spark delivery and stable engine operation. If you are searching for an Acura RDX ignition coil or an Acura TSX stick coil replacement, this part number is a direct match for the listed vehicles.

What It Helps Address

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

Installation Notes and Tips

Verify the part number and vehicle year before installation. Confirm the coil connector, mounting style, and engine application match the original unit on your Acura RDX or Acura TSX. Inspect spark plugs and related ignition components during replacement to avoid repeat coil failure.

Quality Assurance

Denso states that its stick coil technology is backed by extensive testing and inspection processes to support consistent quality and reliable ignition performance. The 673-2318 is part of Denso’s Stick Coil line, developed for direct ignition applications where accurate spark control matters.