Replacement carburetor and maintenance kit for Echo PB500 series backpack blowers (PB500, PB500H, PB500T). Compatible with multiple serial number ranges. Replaces part numbers A021001642 and A021001641. Key benefits Restores reliable starting and steady engine performance by replacing a worn or damaged carburetor and common fuel system parts. Direct replacement designed to fit Echo PB500 series models without modification for faster repairs and less downtime. Includes all routine consumables needed for a complete basic carburetor service, reducing the need to source multiple parts separately. Built for tight sealing and dependable operation to minimize leaks and reduce fuelrelated issues, extending the usable life of the unit. What's included 1 x carburetor (direct replacement for A021001642 / A021001641) 1 x air filter 1 x fuel filter 1 x fuel line 2 x primer bulbs 1 x spark plug 1 x gasket 1 x fuel tank grommet Features and attributes Compatibility: Specifically matched to Echo PB500, PB500H, PB500T backpack blowers and associated serial number ranges that use part numbers A021001642 / A021001641. Function: Carburetor supplies the correct fuelair mixture for reliable idling, acceleration, and fullthrottle performance. Included filters and lines maintain clean fuel flow. Fit and installation: Direct replacement design for straightforward installation using original mounting points; no special tools or alterations typically required. Durability and sealing: Components engineered for good sealing and resistance to typical fuel system wear, contributing to longer service intervals. Maintenance value: Kit bundles common wear items (filter, primer bulbs, spark plug) so you can complete a basic tuneup while replacing the carburetor. Practical applications and use scenarios 1. Seasonal tuneup: the carburetor and consumables before peak yardcare season to ensure the blower starts reliably and maintains performance during extended use. 2. Onsite : Perform a quick, direct swap of the carburetor and related parts to get a malfunctioning PB500 series blower back to service with minimal downtime. 3. Refurbishment: Use the kit when restoring a worn blower to nearoriginal operating condition by addressing fuel delivery, ignition, and filtration components at once. Notes for buyers Verify your blower model and serial number range to confirm compatibility with part numbers A021001642 or A021001641 before . Installation guidance: Basic mechanical skills recommended. If you are not comfortable performing the replacement, have a qualified technician install and inspect the parts. This kit contains the specified parts only and is intended as a direct replacement and maintenance solution for compatible Echo PB500 series backpack blowers.