This piston rebuild kit is designed for Jenny model 637-1002 equipment, providing the specific parts needed to restore piston function on that unit. It carries cross-reference identifiers EMGLO D78132 and OL202, aiding compatibility verification with the exact Jenny 637-1002 piston assembly. Use it during routine maintenance or after piston wear to reestablish the piston’s sealing characteristics and overall performance in the Jenny system. The model linkage helps ensure you order the correct rebuild kit for this equipment.
