Aftermarket replacement fuel pump plunger and barrel assembly with a 10mm plunger, about 7.2 inches long and 1.6 inches high. Fits Caterpillar 3304, 3304B, 3306, 3306B, 65C, 65D, 330 and 350 engines and equipment. A direct replacement for 7W5929 and 7W-5929. OEM part numbers are provided for reference only. Please verify fit prior to ordering.