Honda ACCORD Owner's Manual page 318

Spark Plugs (4-cylinder Models)
Tighten the spark plugs caref ully. A
spark plug that is too loose can
overheat and damage the engine.
Overtightening can cause damage to
the threads in the cylinder head.
320
Maintenance
9. Install the ignition coil into the
hole.
10. Connect the wire connector to the
ignition coil. Make sure it locks in
place.
11. Push the ignition coil down all the
way. Install the bolt.
12. Repeat this procedure for the
other three spark plugs.
13. Reinstall the coil cover, and
tighten the four nuts.
Specifications:
NGK: IZFR6K-11
DENSO:
SKJ20DR-M11