574386701 Carburetor - Fits Husqvarna 122LK 122LD 122LDX 122C WeedEater 2-Cycle 22cc Gas String Trimmer 581734301
574386701 carburetor kit with adjustment tool, gaskets, fuel lines, and air filter for Husqvarna string trimmers.
574386701 replacement carburetor for Husqvarna string trimmers with primer bulb and adjustment screw.
Carburetor repair kit for Husqvarna 122LK trimmer including carburetor, air filter, primer bulbs, fuel lines, and tools.
Dimensional diagram showing measurements for Husqvarna 122LK 122LD string trimmer carburetor replacement parts.
574386701 carburetor for Husqvarna 122 series string trimmers shown with engine placement diagram.
Husqvarna 122LK carburetor diagram highlighting adjustment screws, fuel lines, and impulse port features.
Multi-angle view of 574386701 carburetor for Husqvarna 122LK, 122LD, and 122LDX string trimmers.
Splined carburetor adjustment tool for Husqvarna string trimmer carburetors with hexagon tip and smooth handle.
Replacement carburetor kit with adjustment tool and filters for Husqvarna 122LK 122LD string trimmers.
574386701 carburetor kit with adjustment tool, gaskets, fuel lines, and air filter for Husqvarna string trimmers.
574386701 replacement carburetor for Husqvarna string trimmers with primer bulb and adjustment screw.
Carburetor repair kit for Husqvarna 122LK trimmer including carburetor, air filter, primer bulbs, fuel lines, and tools.
Dimensional diagram showing measurements for Husqvarna 122LK 122LD string trimmer carburetor replacement parts.
574386701 carburetor for Husqvarna 122 series string trimmers shown with engine placement diagram.
Husqvarna 122LK carburetor diagram highlighting adjustment screws, fuel lines, and impulse port features.
Multi-angle view of 574386701 carburetor for Husqvarna 122LK, 122LD, and 122LDX string trimmers.
Splined carburetor adjustment tool for Husqvarna string trimmer carburetors with hexagon tip and smooth handle.
Replacement carburetor kit with adjustment tool and filters for Husqvarna 122LK 122LD string trimmers.
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574386701 Carburetor - Fits Husqvarna 122LK 122LD 122LDX 122C WeedEater 2-Cycle 22cc Gas String Trimmer 581734301

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574386701 Carburetor with Adjustment Tool Air Fuel Filter

Key Features

  • Direct replacement carburetor for 2-cycle, 22cc gas engines.
  • Includes carburetor, adjustment tool, air filter, fuel filter, two fuel lines, primer bulb, and gasket.
  • Designed to meet original equipment manufacturer specifications for fit and performance.

Replaces / Cross-Reference Part Numbers

  • 574386701
  • 581734301
  • 967252801

Compatibility & Fitment

  • Fits Husqvarna Trimmer Models:
    • 122C
    • 122LD
    • 122LDX
    • 122LK (including P/N 967252801)
  • Fits McCulloch Trimmer Models:
    • T22LS
    • T22LSC

When to Replace

  • Engine will not start or is difficult to start.
  • Engine idles poorly, stalls, or surges.
  • Noticeable loss of power or poor acceleration.
  • Black smoke from the exhaust.
  • Fuel leaking from the carburetor.

Installation Tips

  • Before starting work, disconnect the spark plug wire for safety.
  • Take a photo of the fuel line and linkage connections before removal to ensure correct reassembly.
  • Clean the mounting surfaces and intake port before installing the new carburetor.
  • Always use the new gasket provided to ensure a proper seal and prevent air leaks.
  • Replace old or brittle fuel lines and the fuel filter to prevent contamination of the new carburetor.
  • The carburetor may require minor adjustment after installation for optimal performance based on your altitude and climate.

FAQ

This carburetor is designed for Husqvarna 22cc 2-cycle trimmer and edger models in the 122 series, specifically the 122LK, 122LD, 122LDX, and 122C. It is also compatible with equipment model references 967252801 and 966712701. Since Husqvarna may use different carburetor versions within the same model family, we recommend verifying your original carburetor part number before ordering to ensure a perfect match.
This carburetor serves as a direct replacement for OEM part numbers 574386701 and 581734301. It is also compatible with Husqvarna equipment model references 967252801 and 966712701.
Typical carburetor-related symptoms on a 2-cycle 22cc trimmer include hard starting, only running with the choke on, rough idle, bogging when you open the throttle, stalling after a few seconds, fuel leakage, or surging at high speed. If the engine has spark and fresh fuel but still will not run correctly, the carburetor or its metering passages may be restricted.
For most DIY users, installation is a moderate task typically taking 20 to 45 minutes. You will generally need a screwdriver, needle-nose pliers, and a carburetor adjustment tool if mixture tuning is required after installation. We recommend taking a photo of the fuel line routing and linkage position before removal to ensure the new unit is installed correctly.
Before installation, drain old fuel and inspect the fuel lines, primer bulb, fuel filter, air filter, and intake gaskets. On small 2-cycle trimmers, stale fuel and cracked fuel lines are common root causes of poor performance; replacing only the carburetor may not fully resolve the issue if these components are deteriorated. If your kit includes a fuel filter, air filter, gaskets, or an adjustment tool, we recommend servicing those parts at the same time.
The most common causes are old gasoline, ethanol-related varnish buildup, debris from deteriorating fuel lines, and diaphragm stiffening due to age. These small carburetors contain very fine internal passages, meaning even minor contamination can lead to lean running, poor throttle response, or no-start conditions. Using fresh fuel and avoiding long-term fuel storage in the machine will help extend the life of your carburetor.