Spark Plug for 1977-1979 Chevrolet Impala & More - DENSO 5020

DENSO Auto Parts 5020 spark plug for the 1977-1979 Chevrolet Impala 6-cylinder 4.1L and other vehicles ignites the air-fuel mixture in the cylinder. The DENSO Auto Parts spark plug is OE-grade and has one ground electrode.

• Patented U-Groove ground electrode allows a larger flame front for improved ignitability
• Copper core center electrode for thermal conductivity
• Nickel center electrode tip with a nickel ground electrode core
• 5000 ohm resistance and manufacturer heat range 14
• Pre-gapped at 0.9 mm, with a tapered seat, 14.0 mm thread diameter and 11.6 mm reach

Quick facts

• Part: DENSO Auto Parts 5020 spark plug
• Fits: 1977-1979 Chevrolet Impala 6-cylinder 4.1L and other vehicles
• Condition: New

Hard starting, a rough idle or a misfire can mean the spark plugs are worn, though worn plug wires or a fuel problem can also be behind those signs, so trace the cause before you replace them. The 1977-1979 Chevrolet Impala 6-cylinder 4.1L takes six spark plugs.

Fits

The vehicles it fits include the 1976 Dodge Charger 6-cylinder 3.7L, and it is one of the spark plugs for the 1978-1981 Chrysler Town & Country 6-cylinder 3.7L. If your car isn't named here, look up your year, model and engine in the "Vehicles it fits" section.

Specifications

Product information is for general reference and may contain errors. See our Disclaimer.