Denso 4035 Spark Plug

Denso 4035 Spark Plug Overview

The Denso 4035 spark plug is a conventional ignition component built around an OEM-specified special ground electrode configuration. It uses a copper core center electrode with a nickel tip, a nickel ground electrode, and a flat seat for direct replacement service in secondary ignition systems.

For drivers and technicians searching for a Denso spark plug for Honda Civic or similar OE-style applications, this part number 4035 offers a 0.6 pre-gap, 14.00 mm thread diameter, 19.00 mm reach, and 20.6 mm hex size. The 5000 ohm resistor helps control electrical noise in the ignition circuit.

Key Features

• Brand: Denso U-Groove Conventional spark plug
• Part number: 4035
• OEM-specified special ground electrode configuration
• Copper core center electrode for stable heat transfer
• Nickel center and ground electrode tip materials
• Standard ground electrode and standard ground tip design
• 5000 ohm resistance
• 0.6 pre-gap size
• Flat seat, 14.00 mm thread diameter, 19.00 mm reach
• 20.6 mm hex size

Product Line Details

Denso’s U-Groove Conventional line focuses on OE-style spark plug construction for everyday ignition service. The U-groove ground electrode design is used to support consistent spark exposure while maintaining a conventional plug format for straightforward replacement in applications that call for this style.

Detailed Description

Denso 4035 is a conventional spark plug engineered for vehicles that specify this electrode and thread configuration. The copper core center electrode helps manage heat, while the nickel tip materials and single-ground-electrode layout support dependable ignition performance in standard secondary ignition systems. This part cross-references DENSO Auto Parts W24ESR-V for the same application. If you are sourcing a Denso 4035 spark plug for Honda Civic service or other OE-matched ignition maintenance, verify the thread diameter, reach, seat type, and heat range before installation.

Common Issues This Part Can Address

• Hard starting caused by worn spark plug electrodes
• Misfire conditions from excessive plug wear
• Rough idle related to degraded ignition output
• Reduced fuel economy from inefficient spark delivery
• Ignition noise concerns in resistor-equipped systems

Installation Notes and Tips

Confirm the application calls for a flat-seat plug with 14.00 mm thread diameter, 19.00 mm reach, and 20.6 mm hex size before installation. Check the specified gap against the vehicle service information and inspect the ignition system for coil, wire, or fouling issues that could affect plug life. Fits 2006-2011 Honda Civic, front right is not listed in the fitment data for this part, so use catalog verification for exact vehicle matching.

Quality Assurance

Denso manufactures this spark plug to OE-specified dimensions and electrode configuration for service applications that require a conventional replacement plug. Part number 4035 is built to match the listed technical specifications and interchange reference for accurate catalog selection.