2009 Workhorse W42 Spark Plugs

ACDelco® - GM Original Equipment™ Iridium Spark Plug
13
# 6144269470
$9.95
ACDelco® - GM Original Equipment™ Platinum Spark Plug
13
# 4579620811
$8.14
ACDelco® - Gold™ Rapidfire Platinum Spark Plug
13
# 5144072470
$5.50
Champion® - Nickel Spark Plug
6
# 3665268429
$3.67