DENSO Auto Parts 3066 spark plug for the 1973-1979 Honda Civic 4-cylinder 1.2L and other vehicles fires the spark that ignites the air-fuel mixture in each cylinder. It is an OE-grade plug.
- U-Groove ground electrode tip gives a larger flame front and improved ignitability for increased engine efficiency
- Copper core center electrode for thermal conductivity
- Nickel ground electrode core and nickel center electrode tip
- Pre-gapped to 0.8 mm
Quick facts
- Part: DENSO Auto Parts 3066 spark plug
- Fits: the 1973-1979 Honda Civic 4-cylinder 1.2L and other vehicles
- Material: copper center electrode core, nickel ground electrode core, nickel center electrode tip
- Condition: New
Hard starting, a rough idle or misfiring can point to worn plugs, but the ignition wires or the fuel system can be behind them too, so find the cause before you replace anything.
Fits
Beyond that Honda, the part is listed for a wide range of Honda, Volkswagen and Chevrolet models, including the 1980 Volkswagen Jetta 4-cylinder 1.6L, the 1981-1984 Jetta 4-cylinder 1.7L, the 1984-1985 Jetta 4-cylinder 1.8L and, as a spark plug for the 1966-1969 Chevy Impala V8 6.5L, the 1967-1969 Impala V8 7.0L. The Honda and Volkswagen engines named here take four plugs each, and the Impala V8s take eight. Open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Thread diameter: 14.0 mm
- Reach: 19.0 mm
- Hex size: 20.6 mm
- Seat type: Flat
- Manufacturer heat range: 20
- Quantity per vehicle: varies by engine
Build and materials
- Resistance: 5000 ohms
- Ground electrode tip design: U-Groove, standard configuration
- Ground electrodes: 1
- Condition: New
- Country of origin: China
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
W20EXR-U, 0000-18-1690, 0000-18-B601, 3954-18-110, FE82-18-110, 003 159 46 03, 596162, 8350 1511, 75 68 900, 101 000 021 AA, 191 905 450 A, ZVP 121 087 S, 270746-0
Frequently Asked Questions
Is this a spark plug for the 1973-1979 Honda Civic 4-cylinder 1.2L?
Yes. DENSO Auto Parts 3066 is listed for the 1973-1979 Honda Civic 4-cylinder 1.2L, which takes four plugs. For another car, open the "Vehicles it fits" section.
Is 3066 a spark plug for the 1981-1984 VW Jetta 4-cylinder 1.7L?
Yes. DENSO Auto Parts 3066 is listed for the 1981-1984 Volkswagen Jetta 4-cylinder 1.7L, and that engine takes four plugs.
What thread size and reach does this spark plug have?
The thread diameter is 14.0 mm and the reach is 19.0 mm. The hex size is 20.6 mm and the seat is flat.
Does this DENSO spark plug come pre-gapped?
Yes. The plug comes pre-gapped at 0.8 mm.
What heat range and resistance does this spark plug have?
The manufacturer heat range is 20 and the resistance is 5000 ohms.
