Non genuine service kit suitable for Stihl 017, 018, MS170 and MS180 chainsaws. Kit contains: 1x spark plug, 1x air filter, 1x fuel filter, 1x oil filter, 1x fuel pipe, 1x oil pipe, 1x exhaust muffler gasket, 1x carburettor gasket, 1x worm gear. Please, check your old part with the pictures prior to purchase. This is for the old style machine which has a BPMR7A equivalent spark plug and a air filter with a round hole, unlike the newer version which takes a CMR6H spark plug and the air filter has a oval shaped hole.