New Spark Plug Sold Individually Professional Conventional Series for 1946-1948 Humber Pullman MK I 6 Cyl 4.1L ACR44F - Direct Fit Sold out Original price $25.28 - Original price $25.28 Original price $25.28 $25.28 - $25.28 Current price $25.28 | / by AC Delco SKU 366|ACR44F Replaces OEM: Availability: Out of stock Quantity Sold out