Denso 3130 Spark Plug

Denso 3130 U-Groove Spark Plug

Denso 3130 is a conventional spark plug built for direct ignition service across a wide range of import and domestic applications. Its U-Groove ground electrode design is engineered to improve ignitability, helping support more efficient combustion in compatible engines.

Key Features

• U-Groove ground electrode tip design for improved spark exposure
• 5000 ohm resistor for ignition noise suppression
• Copper center electrode core for stable heat transfer
• Nickel center and ground electrode tip materials
• Standard ground configuration with a flat seat
• Pre-gapped at 1.1 mm for common OE-style applications
• 14.0 mm thread diameter, 19.0 mm reach, 16.0 mm hex size
• Manufacturer heat range 16

Product Details

This Denso U-Groove Conventional spark plug is built around a nickel ground electrode and copper core center electrode to support consistent ignition performance in everyday driving conditions. The U-Groove design increases the spark path exposure, which can improve ignitability in engines that specify this style of plug. Denso 3130 is used in a broad range of vehicles, including Hyundai Accent, Kia Rio, Subaru Forester, Subaru Impreza, and Mitsubishi Lancer applications, along with many other compatible import platforms.

The Denso U-Groove Conventional line focuses on OE-style fitment and dependable secondary ignition service. For shoppers searching for a spark plug for 2005-2010 Subaru Forester, 2006-2011 Kia Rio, or 1995-2011 Hyundai Accent, this part number is a direct reference point for matching the specified plug design and dimensions.

This part cross-references DENSO Auto Parts K16PR-U11 for the same application.

Common Issues This Part Can Address

• Hard starting caused by worn or fouled spark plugs
• Rough idle from weak or inconsistent spark delivery
• Misfire conditions related to aged secondary ignition components
• Reduced fuel efficiency from degraded plug performance
• Loss of throttle response in engines requiring the specified plug type

Installation Notes and Tips

Verify thread diameter, reach, seat type, and heat range against the vehicle’s service specification before installation. Confirm the engine application for Denso 3130, especially on models that use special plug arrangements such as Mercedes-Benz and Chrysler Crossfire applications noted in the fitment data. Use proper torque procedures and inspect ignition coils, wires, and boots during service to avoid repeat misfire concerns.

• Fits 1995-2011 Hyundai Accent, N/A
• Fits 2006-2011 Kia Rio, N/A
• Fits 2006-2011 Kia Rio5, N/A
• Fits 2005-2010 Subaru Forester, N/A
• Fits 2005-2010 Subaru Impreza, N/A
• Fits 2002-2007 Mitsubishi Lancer, N/A
• Fits 2001-2006 Kia Optima, N/A
• Fits 2003-2006 Kia Sorento, N/A
• Fits 2000-2006 Lincoln LS, N/A
• Fits 1999-2004 Hyundai Sonata, N/A

Quality Assurance

Denso manufactures this spark plug to OE-style dimensional and material specifications for secondary ignition service. The 3130 part number is supported by broad interchange coverage and extensive vehicle fitment data for import and domestic applications.