T Series DR31T ignition coil for the 1974-1985 Chevrolet Impala 5.7L and other vehicles is an electronic coil that makes the spark energy to fire the spark plugs.
A misfire, hard starting or a rough idle can mean a coil is weakening. Before you replace it, rule out worn spark plugs and damaged plug wires, since either one can produce a misfire too. The engine needs a single coil, so one is all you order.
This coil is also a direct-fit replacement for the 1978-1983 Chevrolet Malibu 5.0L and the 1987 Chevrolet Suburban 5.7L. Fit depends on the engine, so open the "Vehicles it fits" section and look up your exact model and engine.
Fit and size
Build and materials
In the box: ignition coil and mounting bracket. Mounting hardware is not included, so plan on new bolts.
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
Is this the right Chevy Malibu ignition coil for a 1978-1983 Chevrolet Malibu 5.0L, or a Chevy Suburban ignition coil for a 1987 Chevrolet Suburban 5.7L?
Yes. The T Series DR31T fits the 1978-1983 Chevrolet Malibu 5.0L and the 1987 Chevrolet Suburban 5.7L.
Is the DR31T a Chevy Impala ignition coil or Impala coil pack for the 1974-1985 Chevrolet Impala 5.7L?
Yes. The T Series DR31T is a single ignition coil that fits the 1974-1985 Chevrolet Impala 5.7L, and the engine takes one.
Does the DR31T come with a mounting bracket?
Yes, the mounting bracket is included. Mounting hardware is not, so plan on new bolts.
What terminals and voltage does this ignition coil have?
This coil has four male blade terminals and one female connector, and it runs on 12 volts. The terminals are steel or aluminum, as indicated by OE.
How can I tell if this HEI ignition coil is going bad?
A weak coil can show up as hard starting, a stumble under load or a check engine light. With the engine off and cool, look for cracks or burn marks on the housing; a shop can test the coil's output.
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Standard Motor Products
Standard Motor Products
Standard Motor Products
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
