BOOST ENGINE PERFORMANCE: In cold temperatures, engines can be harder to start due to the fuel not vaporizing effectively. The primer bulb delivers a small amount of fuel directly to the carburetor and combustion chamber, creating an optimal fuel-air mixture that is easier to , making cold starts more reliable. PERFECT MATCH: The 667460 Primer Bulb perfectly fits For several Silver Series Lawnboy models with Carburetor and for Toro products, such as CCR-1000, CCR-2000, CCR-2017, CCR-2450, CCR-3000, CCR-3650, CCR-3654, CCR-2200, CCR-Powerlite and more. It replaces Lawn-Boy 66-7460 44-2750, Toro 66-7460 44-2750, 120-440, FSL90-0071, 24-1027 STURDY & : The 667460 Primer Bulb is crafted with precision and durability and constructed to withstand repeated use and maintain its functionality which allows the primer bulb to be easily pressed and released, creating the necessary suction to draw fuel into the carburetor and fuel lines. With our high-quality replacements, you can trust reliable fuel flow, easy priming, and enhanced for your equipment. EASY TO REPLACE: You can simply replace the old primer bulb with the one by yourself just in 15 minutes. Please wear work gloves to safety while replacing. Colour:black Material:plastic Package Contents: 6 * 66-7460 667460 Primer Bulb Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.