1981 International 1924 S Spark Plugs

6.6L

7.3L

ACDelco® - Gold™ Rapidfire Platinum Spark Plug
13
# 5143941984
$5.47
ACDelco® - Professional™ Double Platinum Spark Plug
13
# 4958876186
$8.05
Champion® - Copper Plus Spark Plug
6
# 6128095852
$2.95