Maintenance / 2021 Civic 4Dr · Automatic (variable gear ratios) · 4 cyl · 1.5 L · Turbo
Spark plugs
Use the engine-specific plug type. Check the service schedule and inspect ignition faults before replacing parts.
IntervalReplace spark plugs at Maintenance Minder item 4; inspect valve clearance at the same item. No fixed distance/time plug interval is specified here.Verified
01 / Requirements
Configuration-specific service and fitment facts
These sourced values are shared by the specification sheet and the maintenance guides for this exact configuration.
- Cylinders
- 4 Verified
- Spark plug specification
- NGK ILZKAR8H8S Verified
- Installation
- Work on a cooled engine using the specified tightening procedure. Do not adjust a fine-wire plug gap unless its manufacturer explicitly permits it.