ALFUL Ruixing 125B carburetor kit for Husqvarna 125B/125BV - pre-tuned with air filter & fuel line

A ready-to-install Ruixing OEM 125B carburetor kit engineered to replace worn or damaged carburetors on Husqvarna 125B-series handheld leaf blowers and compatible models.

This complete replacement assembly from ALFUL includes a factory-tuned Ruixing 125B carburetor plus an air filter, fuel line kit, gaskets and spark plug so you can restore reliable starting and smooth throttle response without sourcing parts separately. The unit matches Husqvarna OEM numbers like 590460102, 545081811 and Zama C1Q-W37 compatibility lists, and arrives pre-adjusted for most common 28cc 2-stroke blower setups.

Which models and part numbers does this carburetor replace?

The Ruixing 125B is designed to fit multiple Husqvarna and related blower models, covering several model-year variations. It directly replaces common OEM references so you can use it as a drop-in service part for many 125-series units.

• Direct compatibility: Husqvarna 125B, 125BV, 125BVX, 125BX series (various years listed).
• OEM numbers matched: 590460102, 545081811, 545112101 air filter and related references.
• Also fits select Jonsered B2126 / BV2126 and Craftsman blower models using the same carburetor pattern.

How is the carburetor prepared for installation and tuning?

The carburetor ships factory-tuned and ready to run so most users can install it and start the blower without extra adjustments. If fine-tuning is needed, minor adjustments are achieved with a 20-tooth carburetor screwdriver and following the original equipment manufacturer’s recommended procedures.

• Factory pre-calibrated to typical 28cc 2-stroke settings for reliable start-up.
• Adjustment capability: high and low speed screws accessible for tuning.
• Includes gaskets and fuel line for a clean, leak-free install—no scavenging parts required.

What are the important dimensions and technical details to check?

Confirming a few simple measurements avoids fitment problems: the mounting hole spacing and bore diameters must match your blower housing. The Ruixing unit provides standard dimensions used on Husqvarna 125-series blowers to ensure correct alignment and throttle linkage function.

• Mounting hole center-to-center distance: 31 mm to match OEM flange.
• Throttle bore diameter: 14 mm; choke bore diameter: 18 mm.
• Designed for 28cc 2-stroke engines with typical intake flange geometry.

What parts are included in the ALFUL Ruixing 125B carburetor kit?

This kit supplies everything needed to replace the carburetor and refresh related fuel/air components, reducing return trips to the parts store. The included components help ensure a clean rebuild and immediate operation after installation.

• Ruixing OEM 125B carburetor (factory tuned).
• 545112101 air filter, fuel line kit (581798001 or 545081841-type), one foot of fuel line.
• Spark plug, two gaskets and installation hardware where applicable.

Who is this for: This ALFUL Ruixing 125B carburetor kit is aimed at homeowners, landscapers and small-engine technicians who need a dependable replacement for worn or damaged carburetors on Husqvarna 125-series handheld blowers and compatible Jonsered or Craftsman models. It’s a good choice if you want a complete, ready-to-install package with matching filter and fuel line, prefer factory-set tuning for quick return-to-service, and are comfortable performing basic small-engine installations and minor carburetor adjustments. Avoid using on models outside the listed compatibility or where the flange, bore sizes, or linkage differ; consult your parts manual if unsure.