Denso 6013 Spark Plug

Brand Denso 6013
Ground Electrode Tip Design Standard
Ground Configuration Standard
Ground Electrode Core Material Nickel
Center Electrode Core Material Copper
Center Electrode Tip Material Nickel
Pre-Gap Size 0.7
Ground Electrode Quantity 1
Hex Size 20.6
Manufacturer Heat Range 14
Seat Type Flat
Reach 11.20
Thread Diameter 14.00
Fits —

OEM quality standards. Manufactured to meet original-equipment expectations.

Copper core design. Promotes efficient spark delivery and consistent ignition performance.

U-Groove conventional. A proven spark plug design for dependable combustion.

Cross-references DENSO Auto Parts W14L for the same application. See all 1.

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Denso 6013 U-Groove Conventional Spark Plug

The Denso 6013 is a U-Groove Conventional spark plug built to OEM quality standards for dependable secondary ignition performance. It uses a copper center electrode core with nickel tip materials and a nickel ground electrode to support consistent spark delivery in the right applications.

Key Features

  • U-Groove Conventional design for stable ignition performance
  • Copper center electrode core material with nickel center tip
  • Nickel ground electrode core material with standard ground configuration
  • Pre-gapped to 0.7 for specified applications
  • 14 mm thread diameter with flat seat type
  • 20.6 hex size and 11.20 reach
  • Manufacturer heat range 14

Product Details

Denso 6013 is engineered as a conventional spark plug for vehicles that call for a 14 mm, flat-seat plug with an 11.20 reach and 0.7 pre-gap. The U-Groove electrode profile is paired with nickel and copper construction to support reliable ignition in the specified engine setup. This part number 6013 is also referenced as Denso W14L for the same application. For drivers searching for a Denso spark plug for Honda Civic or Toyota Corolla service, this plug should be matched strictly to the vehicle’s required plug specification and engine code.

Common Issues This Part Can Address

  • Hard starting caused by worn or fouled spark plugs
  • Rough idle from inconsistent spark delivery
  • Misfire conditions related to aged secondary ignition components
  • Reduced throttle response from degraded plug performance
  • Maintenance replacement for OEM-spec ignition service

Installation Notes and Tips

Verify thread diameter, reach, seat type, heat range, and pre-gap before installation. Use the vehicle service specification for torque and gap confirmation, and inspect ignition wires or coils at the same time if wear is present. This Denso 6013 spark plug is intended for applications that match the listed dimensions and ignition requirements; confirm fitment by year, make, model, and engine before ordering. If you are servicing a Honda Civic or Toyota Corolla, compare the original plug specification to ensure the correct replacement.

Quality Assurance

Denso manufactures this spark plug to OEM quality standards for consistent fit and function in the specified applications. The part cross-references Denso Auto Parts W14L for the same application.

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
DENSO Auto Parts — W14L