Echo Brand A021001692 Carburetor Kit - Fits Echo SRM-225 GT-225 GT-225L Trimmer Weedeater
Echo SRM-225 carburetor repair kit with air filter, fuel lines, spark plug, and gaskets for trimmer maintenance.
Echo SRM-225 carburetor replacement kit including air filter cover, fuel lines, gaskets, and maintenance components.
Dimension diagram showing Echo SRM-225 carburetor, air filter, fuel filter, and spark plug with measurements.
Replacement carburetor for Echo SRM-225 trimmer showing installation point on engine housing.
Diagram of Echo SRM-225 carburetor showing fuel lines, adjustment screws, and ports for maintenance and installation.
Multi-angle view of Echo SRM-225 trimmer carburetor replacement part with primer bulb.
Echo SRM-225 air filter cover and air cleaner case with integrated choke lever and thumbscrew knob.
Replacement fuel line assembly with grommet and fuel filter for Echo SRM-225 trimmer.
Person holding an Echo SRM-225 trimmer to troubleshoot engine performance issues like stalling and poor idle.
Replacement carburetor kit for Echo SRM-225 trimmer including air filter cover, spark plug, and fuel system components.
Echo SRM-225 carburetor repair kit with air filter, fuel lines, spark plug, and gaskets for trimmer maintenance.
Echo SRM-225 carburetor replacement kit including air filter cover, fuel lines, gaskets, and maintenance components.
Dimension diagram showing Echo SRM-225 carburetor, air filter, fuel filter, and spark plug with measurements.
Replacement carburetor for Echo SRM-225 trimmer showing installation point on engine housing.
Diagram of Echo SRM-225 carburetor showing fuel lines, adjustment screws, and ports for maintenance and installation.
Multi-angle view of Echo SRM-225 trimmer carburetor replacement part with primer bulb.
Echo SRM-225 air filter cover and air cleaner case with integrated choke lever and thumbscrew knob.
Replacement fuel line assembly with grommet and fuel filter for Echo SRM-225 trimmer.
Person holding an Echo SRM-225 trimmer to troubleshoot engine performance issues like stalling and poor idle.
Replacement carburetor kit for Echo SRM-225 trimmer including air filter cover, spark plug, and fuel system components.
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A021001692 Carburetor Kit - Fits Echo SRM-225 GT-225 GT-225L Trimmer Weedeater

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A021001692 Carburetor Kit

Key Features

  • Direct-fit carburetor replacement kit for 21.2cc engines.
  • Restores proper fuel and air mixture for optimal engine performance.
  • Kit includes: 1x Carburetor, 1x Spark Plug, 2x Air Filters, 1x Air Filter Cover, 1x Air Cleaner Case, 1x Bracket Air Cleaner, 1x Fuel Line Assembly, 2x Primer Bulbs, 1x Rubber Grommet, 1x Fuel Filter, 2x Gaskets, 2x Mounting Screws, 1x Wing Bolt, 2x Flat Washers, and 2x Spring Washers
  • Pre-calibrated for most applications; may require minor adjustments.

Replaces / Cross-Reference Part Numbers

  • Echo: A021001692, A021001690, A021001691, Z011-120-0604-A
  • Zama: RB-K93
  • OakTen / Complete Tractor: 27-526, 616-452

Compatibility & Fitment

  • Fits Echo GT Series Models: GT-225, GT-225i, GT-225L, GT-225SF
  • Fits Echo PAS Series Models: PAS-225
  • Fits Echo PE Series Models: PE-225
  • Fits Echo PPF Series Models: PPF-225
  • Fits Echo SHC Series Models: SHC-225, SHC-225S
  • Fits Echo SRM Series Models: SRM-225, SRM-225i, SRM-225SB, SRM-225U

When to Replace

  • Engine is difficult to start or will not start.
  • Engine runs rough, stalls, or idles erratically.
  • Noticeable loss of power during operation.
  • Fuel leaks from the carburetor body.
  • Engine requires the choke to be partially engaged to run.
  • Excessive black smoke from the exhaust.

Installation Tips

  • Always disconnect the spark plug wire before starting service.
  • Photograph the fuel line and throttle linkage connections before disassembly for reference.
  • Clean the gasket mounting surfaces on the engine before installing the new carburetor.
  • It is recommended to replace the fuel filter and fuel lines when replacing the carburetor.
  • Once installed, start the engine and allow it to warm up, then adjust idle speed if necessary.
  • Refer to your equipment's service manual for specific torque specifications and adjustment procedures.

FAQ

This carburetor is commonly used on Echo and Shindaiwa outdoor power equipment that uses carburetor number RB-K93 / A021001692. Models mentioned for this fitment family include Echo SRM-225, SRM-225i, SRM-225U, SRM-225SB, PAS-225, PAS-225SB, GT-225, GT-225i, GT-225L, GT-225SF, PE-225, PPF-225, PPF-235ES, SHC-225, SHC-225S, and PPT-235ES. The product title also specifically lists SRM-225, PAS-225, GT-225, PE225, PPF225, GT225L, and SHC225S. Because Echo used several close variants, match your original carburetor number before ordering.
The key matching numbers for this carburetor are A021001692 and Zama RB-K93. Cross-reference numbers also shown for this carburetor family include A021001690 and A021001691. The safest way to confirm fit is to compare the number stamped on the original carburetor and verify your equipment model.
Typical carburetor-related symptoms on an SRM-225 or similar Echo unit include hard starting, only running with the choke partly on, stalling at idle, bogging when you pull the throttle, surging, fuel leakage, or a machine that starts on primer fuel but dies right away. These symptoms can also be caused by old fuel, cracked fuel lines, a plugged fuel filter, or an air leak, so those items are worth checking too.
On most Echo trimmers and PAS units in this family, carburetor replacement is a manageable small-engine repair. Typical tools are a screwdriver set, needle-nose pliers, and possibly a nut driver or small socket for the air cleaner and mounting hardware. If the fuel lines are stiff or brittle, a pick can help remove them. For someone familiar with basic small-engine work, installation is often about 20 to 45 minutes. Take a photo of the throttle linkage, gasket order, and fuel line routing before removal.
Drain old fuel first and inspect the fuel tank for debris. It is smart to check the fuel filter, primer bulb, fuel lines, intake gasket, and air filter/case at the same time, since restricted fuel flow or air leaks can mimic a bad carburetor. If the machine sat with ethanol fuel, varnish in the tank and hardened fuel lines are common root causes. Also confirm the intake gasket and insulator are seated correctly during reassembly so the engine does not develop a lean-running air leak.
The most common causes are stale fuel, ethanol-related corrosion, varnish buildup in the metering passages, and diaphragm stiffening from age. Trimmers that sit between seasons are especially prone to this. Restricted airflow from a dirty air filter and contaminated fuel from the tank can also shorten carburetor life. Using fresh mixed fuel, running the unit dry before long storage, and replacing cracked fuel lines can help prevent repeat problems.