Primer Bulb 530047721 4 Pack Replacement for Husqvarna 225 BX Blower, Quick Cold Start Leak‑ Fuel Flow

4Pack 530047721 Primer Bulb Replacement for Husqvarna 225 BX (200106) blower models. Direct fit for part numbers 12318139130, 300780002, 1885121 purge bulb. Key benefits Restores reliable cold starts by reestablishing proper fuel priming and purge function. Eliminates leaks and hardening that cause long cranks or nostart conditions. Pack of four provides spares for multiple machines or future replacements, reducing downtime. Durable, flexible construction designed for frequent use in outdoor power equipment. Simple replacement that returns original operability without modifying the carburetor or fuel lines. What it does and why you need it The primer bulb draws fuel into the carburetor before starting. A worn or cracked bulb prevents effective priming and leads to starting problems. Replacing the bulb restores correct fuel flow and consistent starting performance. Keeps small engines running as intended and helps avoid unnecessary troubleshooting or component replacement. Compatibility and specifications Part number 530047721, compatible with Husqvarna 225 BX blower models from 2001 through 2006. Also compatible with purge bulb numbers 12318139130, 300780002, and 1885121. Sold as a 4pack to cover multiple machines or to keep on hand for maintenance. Installation and performance notes Designed for direct replacement; typically installs with basic hand tools and no modifications. Restores responsive priming and reduces repeated pull attempts during startup. Recommended replacement when the bulb shows visible cracking, becomes hard, or fails to pump fuel. Typical use scenarios a cracked primer bulb on a 2003 Husqvarna 225 BX blower to restore reliable starting at the beginning of the landscaping season. Keep a spare bulb on hand for a small equipment fleet so service technicians can perform fast field repairs between jobs. Swap out hardened bulbs after long storage to prevent fuel delivery problems during next use. Contents Four primer bulbs, part number 530047721, compatible with listed models and part numbers. This replacement set provides a straightforward way to maintain proper fuel priming and restore starting performance for compatible handheld blowers.