Echo 43701638330 Adjustment Needle

Product Description

The ECHO 43701638330 is a carburetor adjustment needle designed for use in ECHO-branded outdoor power equipment. This small but critical component meters fuel flow within the carburetor, allowing technicians to fine-tune the air-fuel mixture for proper engine performance. A worn or damaged adjustment needle can cause rough idle, poor throttle response, or an engine that runs too rich or too lean. This part is installed by small-engine technicians and experienced service professionals during carburetor rebuilds or fuel-system diagnostics.

This adjustment needle is suited for carburetor service on ECHO handheld and walk-behind outdoor power equipment such as trimmers, blowers, and chain saws that use compatible carburetor assemblies. It is a direct OEM replacement part sourced from ECHO, making it appropriate for service centers and field technicians performing factory-spec repairs. Confirm carburetor model compatibility before ordering.

Key Features

• OEM ECHO replacement part for accurate factory-spec fitment
• Controls fuel metering within the carburetor for precise air-fuel mixture adjustment
• Addresses issues such as rough idle, lean or rich running conditions, and poor throttle response
• Suitable for carburetor rebuild and fuel-system service procedures

Compatibility

Designed as an OEM-style replacement adjustment needle for compatible ECHO outdoor power equipment carburetors. Verify the specific carburetor model number on your equipment before installation.

Installation Notes

Installation should be performed by a qualified small-engine technician. Disable the ignition and allow the engine to cool completely before beginning any carburetor service. Use appropriate small-engine carburetor tools and follow ECHO service manual procedures for needle removal and reinstallation. Avoid overtightening the adjustment needle, as damage to the needle seat can result in uncontrolled fuel flow.

Technical Specifications

• Component Type: Carburetor Adjustment Needle
• Brand: ECHO
• Part Category: Lawn and Garden Equipment Parts and Accessories

Standard Information

• Brand: ECHO
• Manufacturer Part Number: 43701638330