WESPC Valve Spring T407116 For Perkins 1106D-70TA 1106D-E66TA Diesel Engine Brand Name WESPC Place of Origin China Part Number T407116 After-sales Service Provided Video Technical Support, Online Support Marketing Type Ordinary Product Certificate ISO9001 Warranty 1 Year Stock Yes Application: T407116 is the outer (and often inner) valve spring fitted around both inlet and exhaust valves on 6-cylinder Perkins 1106D-70TA, 1106D-E66TA and Caterpillar C7.1 / 320D2 engines. It