B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Spark Plug: Specifications
Refer to Vehicle Emission Control Information (VECI) decal for spark plug and gap specifications. If a spark plug is removed for examination, it must
be reinstalled in the same cylinder.
Spark Plug Type
Left Side Original Spark Plug
AGSF-22P
Cylinders 1, 2, and 3 use a "PG" suffix. Cylinders 4, 5,
and 6 use a "P" suffix. If a spark plug needs to be
replaced, use only spark plugs with suffix "PP".
Right Side Original Spark Plug
AGSF-22PG
Replacement Spark Plug (Either Side)
ZZN2-18-110 or AGSF-22PP
Spark Plug Gap
0.052 - 0.056 in
