[Applicable Model] The primer bulb is suitable for the snow thrower. [Part Number] The manufacturer's replacement part number is 751‑10639. [High quality material] Made of high quality rubber, it is not easy to be damaged and has a long service life. [High reliability] The primer bulb is an accessory of convenient garden tool replacement with high reliability. [Easy to replace] Easy to install and replace, direct replacement of the old primer bulb can extend the life of the machine. Feature: 1. [Applicable model] The primer bulb is suitable for the snow blower. 2. [Part Number] Manufacturer's replacement part number is 751‑10639. 3. [High quality material] Made of high quality rubber, it is not easy to damage and has a long service life. 4. [High reliability] The primer bulb is a practical garden tool replacement accessory with high reliability. 5. [Easy to replace] Easy to install and replace, direct replacement of the old primer bulb can extend the service life of the machine. Specification: Type of item: Primer Bulb Material: Rubber Weight: approx. 45g / 1.6oz Manufacturer's Replacement Part Number: 751-10639 Fitment: For Snow Blower Package List: 3 Primer Bulbs Note: the data of manual measurements, please allow 1-13cm error, due to differences between light and screen, there will be a certain color difference, the specific received in nature prevail.