WESPC 4181A045 piston ring kit for Perkins 1004.42 and 1004.40T diesel engines Brand Name WESPC Place of Origin China Part Number 4181A045 After-sales Service Provided Video Technical Support, Online Support Marketing Type Ordinary Product Certificate ISO9001 Warranty 1 Year Stock Yes Application WESPC 4181A045 piston ring kit for Perkins 1004.42 and 1004.40T diesel engines. Commonly used in Massey Ferguson tractors, Caterpillar 3054 engines, and construction machinery.