21 0 Cummins ISC 8.3 Cylinder Head Part # 3973624 $1,250 USD (GOOD USED) Cummins 3973624 Cylinder Head For Sale, Cummins 8.3L ISC, Take to get Machined, Part# 3973624, 31C6, 270, 8104035, W/ VALVES SPRINGS, Stock # 5923 **COMES AS SEEN IN THE PHOTO**... ConditionUsedPart Number3973624Stock Number5923 MLS Number12342123CategoryCylinder Heads Last Updated9/27/2023 LocationOpa Locka, FL, US Sold ByCA Truck Parts Inc. (305) 688-___ SHOWNUMBERCall Seller Email Seller Save More Info