HIPA Air Filter + Filter Cover + Fuel / Oil Line Filter for STIHL 029 039 MS290 MS310 MS390 Chainsaw (for editions before 1 56 601 767 (35.2002)) Fitment models: STIHL 029 039 MS290 MS310 MS390 chainsaw Package include: 1 x air filter cover, 1 x air filter, 1 x fuel line & filter, 1 x oil line & filter There are 2 kinds of air filter cover, the one we sold (replaces 1127 140 1900) is for earlier chainsaws, editions before 1 56 601 767 (35.2002) Pay attention to the differences between the earlier and later cover (watch the pictures we provided) If your chainsaw edition is after 1 56 601 767 (35.2002), you need air filter cover 1127 140 1903