Carburetor for Echo PB400 PB400E LBB4000 WA55 Replacement, Reliable Engine Performance, Easy Install

Replacement Carburetor for PB400 PB400E LBB4000 Backpack Blowers Description This replacement carburetor is designed for a direct fit on specified PB400, PB400E, and LBB4000 backpack blower models. It replaces common WA55 series part numbers and provides a reliable, long lasting option to restore operation after carburetor wear or damage. Compatibility Replacement part numbers: WA55, WA55A, WA55B, WA551 Compatible models and serial ranges: PB400 (001001054522) Backpack Blower PB400 (054523) Backpack Blower PB400E (001001128095) Backpack Blower PB400E (128096249241) Backpack Blower PB400E 249242 Backpack Blower LBB4000 (After S/N 001001) Package Includes 1 x Carburetor Key Benefits Direct replacement: Designed to match original mounting points and connections for straightforward installation. Restores function: Replaces old or damaged carburetors to help reliable starting and consistent engine operation. Durable construction: Built for everyday use and extended service life to reduce maintenance frequency. Precise fit and finish: Machining and assembly intended to provide proper fuel and air metering for intended blower models. Easy to install: Suitable for field replacement by technicians or experienced owners. Function and Attributes Function: Regulates the mixture of fuel and air supplied to the engine for combustion. Compatibility: Confirm model and serial ranges before to ensure proper fit. Size and fit: Engineered to match OEM mounting, linkages, and fuel line connections for listed models. Performance: Aims to support smooth idling, consistent throttle response, and dependable operation when installed correctly. Use Scenarios a leaking or clogged carburetor on a PB400 blower to restore reliable starting during yard maintenance. Carry as a spare part for service vehicles that perform seasonal landscaping and cleanup work. Install on an LBB4000 blower after fuelrelated damage or long term storage to the unit to working condition. Notes Verify model and serial numbers against the compatibility list before installation. Sold as a single carburetor unit. Installation may require basic tools and mechanical familiarity.