Husqvarna 577992806 WTEA-7B Carburetor Assembly – Genuine OEM Replacement Carburetor

Part Number: 577992806
Category: Outdoor Power Equipment Replacement Parts & Fuel System Components
Type: WTEA-7B Carburetor Assembly – Genuine OEM Replacement Carburetor

The Husqvarna 577992806 WTEA-7B Carburetor Assembly is a genuine OEM replacement fuel-system component designed for select Husqvarna gasoline-powered outdoor power equipment and compatible engine applications.

Product Specifications

• Part Number: 577992806
• Manufacturer: Husqvarna
• Product Type: Carburetor Assembly
• Factory Designation: Carburetor Assembly WTEA-7B
• Carburetor Designation: WTEA-7B
• Alternate Description: WTEA-7B Carburetor / Engine Carburetor / Fuel Metering Carburetor / Replacement Carb Assembly / Fuel System Carburetor
• Component Type: Engine Fuel System / Air-Fuel Metering Component
• Primary Application: Gasoline-Powered Outdoor Power Equipment
• Common Equipment Types: Husqvarna Outdoor Power Equipment – Model Dependent
• System: Engine Fuel & Air Delivery System
• Function: Meters and Delivers the Appropriate Fuel-Air Mixture to the Engine
• Installation Location: Engine Intake / Fuel System – Model Dependent
• Associated Components: Air Filter / Intake Assembly / Fuel Lines / Primer System / Throttle Linkage / Choke Components / Engine Intake
• Carburetor Model Reference: WTEA-7B
• Replacement Type: Direct OEM Replacement
• OEM Status: Genuine Husqvarna OEM Part
• Condition: New
• Quantity: 1 Carburetor Assembly
• Part Number Reference: 577992806
• Alternate Number Format: 577 99 28-06

Features & Benefits

• Genuine Husqvarna OEM replacement carburetor assembly
• Factory-designated WTEA-7B carburetor configuration
• Designed for compatible Husqvarna gasoline-powered equipment
• Replaces the applicable original equipment carburetor
• Meters fuel and incoming air for engine operation
• Supports proper fuel delivery throughout the applicable operating range
• Helps maintain consistent engine starting and running performance
• Supports proper throttle response when the complete fuel and ignition systems are functioning correctly
• Helps restore engine performance when replacing a confirmed faulty carburetor
• Application-specific fuel connections, mounting configuration, and control interfaces
• Designed to interface with compatible OEM intake and fuel-system components
• Useful for engine fuel-system repair and equipment restoration
• Appropriate for replacement of worn, contaminated, leaking, damaged, or malfunctioning carburetors
• Direct replacement for equipment specifying 577992806
• Sold as a carburetor assembly

Carburetor Function & Importance

The 577992806 WTEA-7B Carburetor Assembly forms a critical part of the engine's fuel and air delivery system.

A simplified engine intake arrangement can be represented as:

Fuel Supply + Incoming Air → 577992806 WTEA-7B Carburetor → Metered Air-Fuel Mixture → Engine Intake → Combustion

The carburetor regulates fuel delivery in relation to incoming air so the engine can receive an appropriate combustible mixture under different operating conditions.

Depending on the equipment and engine configuration, proper carburetor operation supports:

• Reliable engine starting
• Stable idle operation
• Smooth acceleration
• Consistent throttle response
• Proper fuel delivery
• Engine operation under changing loads
• Appropriate air-fuel mixture control
• Consistent overall engine performance

A contaminated, worn, damaged, or incorrectly functioning carburetor may contribute to symptoms such as hard starting, failure to start, rough idle, hesitation, stalling, poor acceleration, inconsistent engine speed, fuel leakage, or an engine that only runs under certain choke settings.

However, these symptoms are not exclusive to carburetor failure. Problems involving stale or contaminated fuel, clogged fuel filters, damaged fuel lines, restricted air filters, intake leaks, ignition components, compression, or other engine systems can produce similar operating conditions.

Replacement, Inspection & Installation

Replacement of the Husqvarna 577992806 WTEA-7B Carburetor Assembly may be appropriate if the original has:

• Developed internal contamination or deposits
• Sustained physical damage
• Developed fuel leakage
• Become excessively worn
• Developed damaged fuel connections
• Failed to properly meter fuel
• Developed internal diaphragm or metering problems
• Become heavily corroded
• Failed after appropriate cleaning or service
• Been diagnosed as the source of persistent engine performance problems

When replacing the carburetor, inspect the surrounding fuel lines, fuel filter, tank connections, intake components, air filter, gaskets, primer components, throttle linkage, choke mechanism, and associated mounting hardware.

Before beginning service, shut off the equipment completely, allow the engine to cool, disconnect the spark plug as appropriate, and work away from open flames, sparks, hot surfaces, and other ignition sources.

Note the original fuel-line routing, throttle linkage, choke connections, mounting orientation, gasket arrangement, and other control connections before removing the old carburetor.

Install the replacement 577992806 WTEA-7B Carburetor Assembly in the correct factory orientation. Make sure fuel connections are secure, linkage moves freely, intake sealing surfaces are properly assembled, and no fuel leaks are present before operating the equipment.

Fitment & Important Notes

• Verify compatibility with your exact Husqvarna equipment model, product number, serial number, engine configuration, and production revision before ordering.
• Match part number 577992806 directly with the applicable OEM parts documentation.
• 577992806 is identified as a WTEA-7B Carburetor Assembly for applicable Husqvarna equipment.
• The WTEA-7B designation is an important carburetor configuration reference and should be verified along with the OEM part number.
• Do not assume every Husqvarna gasoline-powered product uses 577992806.
• Similar-looking carburetors can differ in fuel connections, mounting dimensions, linkage configuration, internal calibration, throttle arrangement, choke configuration, and engine compatibility.
• Do not select a replacement carburetor solely by physical appearance.
• Use 577992806 as the primary OEM fitment reference.
• Verify the exact carburetor and engine configuration before installation, particularly when multiple carburetor revisions are shown for similar equipment.
• Inspect fuel lines for cracking, hardening, deterioration, or leakage while servicing the carburetor.
• Replace contaminated or deteriorated fuel as appropriate before operating a new carburetor.
• Inspect the air filter and intake system for restrictions or leaks that could affect engine operation.
• Do not alter factory carburetor passages, jets, metering components, linkages, or adjustment provisions to force compatibility with another application.
• Never check for fuel leaks near an open flame or other ignition source.
• Confirm that the throttle and choke mechanisms move through their intended ranges before starting the engine.
• After installation, inspect all fuel connections carefully for leakage before returning the equipment to normal operation.
• Assembly contents can vary by OEM service configuration. Verify current Husqvarna parts documentation if specific gaskets, fuel lines, hardware, or other installation components are required.
• This listing is for one Husqvarna 577992806 WTEA-7B Carburetor Assembly unless otherwise specified. Air filters, fuel lines, fuel filters, intake gaskets, mounting hardware, and other associated components are sold separately unless explicitly included.
• Match Husqvarna 577992806 with your equipment's OEM parts documentation before ordering to ensure proper fitment.