Features The product come with good quality, very durable with good working condition, easy to install Primer bulb can instead of # BS 4128 4178 494408 5084D 5084H 694394, very practical Diaphragm kit can replace for Briggs and Stratton 272372, 281028, 495770, 795083 Made of good‑quality rubber material, possess high elasticity, wear resistance and cold resistance This is a good replacement parts for lawn mower engine, which provides great convenience Specification: Item Type: Primer Bulb Diaphragm Gasket Commodity Material: Rubber Primer Bulb Replacement: # BS 4128 4178 494408 5084D 5084H 694394 Package List:6 x Primer Bulb6 x Diaphragm Gasket Package List 6 x Primer Bulb 6 x Diaphragm Gasket