General description Designed for Stihl chainsaws, this 8 in 1 parts kit includes essential components to ensure optimal performance. It features 2 air filters, 2 primer ball pumps, 2 fuel filters, and 2 fuel hoses, making it a comprehensive solution for maintaining your chainsaw. Technical specifications Compatible with Stihl models: MS231, MS231C, MS241C, MS251, MS251C, MS261, MS261C, MS271, MS291, MS291C, MS311, MS362, MS362C, MS391, MS400C Part Numbers: Air Filter - 1141 120 1604, 1141 140 4400 Installation Easy to install with specifications matching original parts Simply align the holes for a straightforward installation Usage Replacement parts designed to provide reliable performance Works effectively as replacements for old or worn parts