the tune-up Kit contains Parts including an Air Filter

13Al608G307 (2002) Lawn Tractor

13AM660F062

Piston and Ring Kit Fits Stihl 017 MS170 37Mm 1130 030 2000Fits Stihl model 017

325" Pitch

Air Filter and Fuel Filter Combo For Stihl Trimmer's Fits 4180 141 0300 31A507-0839-B1 the tune-up Kit contains PartsAir Filter and Fuel Filter Combo For Stihl Trimmer's. Includes: (1) Air Filter (1) Fuel Filter Fits Models: BT131, FB131, FC111, FC91, FC96, FR131, FS111, FS131, FS311, FS89, FS91, HT101, HT102, HT103, HT105, HT130, HT131, HT132, HT133, HT134, HT135, KM111, KM131, and KM91. Replaces OEM: 4180 141 0300 and 0000 350 3521. Specifications: Length: 3" Width : 2 3 4" Height: 7 8"