Denso 3144 Spark Plug

Denso U-Groove Conventional Spark Plug 3144

The Denso 3144 spark plug is built for OE-quality ignition performance in a wide range of import and domestic applications. This U-Groove Conventional plug uses a copper core center electrode, nickel tip materials, and a standard ground configuration to support consistent spark delivery.

Compatible With applications such as 1999-2000 Honda Civic, 1992-2001 Acura Integra, and 2002-2006 Audi A4 Quattro, this plug is a direct-fit service part for many vehicles that call for a conventional flat-seat design. The Denso 3144 is also a common search match for drivers looking for an OEM-style replacement spark plug for Audi, Honda, Acura, Kia, and Chevrolet models.

Key Features

• Brand: Denso U-Groove Conventional
• Part number: 3144
• Manufactured to OEM quality standards
• Copper core center electrode for stable heat transfer
• Nickel center and ground electrode tip materials
• Standard ground electrode design and configuration
• 5000 ohm resistance
• Pre-gapped to 1.1 mm
• Flat seat, 14 mm thread diameter, 19.00 mm reach
• 16.0 mm hex size

Product Details

Denso’s U-Groove Conventional line is aimed at drivers who want a straightforward replacement spark plug with OE-style construction and fitment. The U-groove design is paired with a copper core and nickel electrode materials to support dependable ignition in everyday driving conditions. If you are replacing worn plugs on a Honda Civic, Acura Integra, or Audi A4, the 3144 offers the specifications needed for many factory-equivalent service intervals.

This part cross-references DENSO Auto Parts K20PR-L11 for the same application.

Common Issues This Spark Plug Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from inconsistent ignition output
• Misfire symptoms related to aged secondary ignition components
• Reduced fuel economy from degraded spark performance
• Loss of throttle response from weak spark delivery

Installation Notes and Tips

• Verify thread diameter, reach, seat type, and heat range before installation.
• Confirm the gap specification against the vehicle service manual when required.
• Inspect ignition wires or coil-on-plug components during spark plug replacement.
• Apply proper torque to avoid thread damage in the cylinder head.
• Use the vehicle’s service interval and maintenance schedule as the guide for replacement timing.

Quality Assurance

This spark plug is manufactured to OEM quality standards and is built for direct replacement use in confirmed applications. It is listed with interchange references from Honda, Nissan/Datsun, Mitsubishi, Saab, Volkswagen, and Denso Auto Parts, supporting broad OE-style service coverage.