CS400 Air Filter Tune-Up Kit - For Echo CS-400 CS370 CS370F CS400F Chainsaw Parts 13030039730 Primer Bulb Fuel Spark Plug

CS400 Air Filter Tune-Up Kit - For Echo CS-400 CS370 CS370F CS400F Chainsaw Parts 13030039730 Primer Bulb Fuel Spark PlugCS400 Air Filter Key Features Complete maintenance kit includes an air filter, spark plug, primer bulb, and fuel filter. Filters airborne dust and debris to protect the engine and carburetor. Maintains proper air to fuel ratio for optimal engine performance. Direct replacement components engineered for specific model compatibility. Replaces Cross Reference Part Numbers Air Filter: 13030039730 Spark Plug: 90155, 90155Y Primer Bulb: 90109 Compatibility

CS400 Air Filter

Key Features

• Complete maintenance kit includes an air filter, spark plug, primer bulb, and fuel filter.
• Filters airborne dust and debris to protect the engine and carburetor.
• Maintains proper air-to-fuel ratio for optimal engine performance.
• Direct replacement components engineered for specific model compatibility.

Replaces / Cross-Reference Part Numbers

• Air Filter: 13030039730
• Spark Plug: 90155, 90155Y
• Primer Bulb: 90109

Compatibility & Fitment

• Brand:Echo
• Models:CS-370, CS-370F, CS-400, CS-400F, CS-420ES, CS-3500, CS-4200, CS-4200ES, CS-5000

When to Replace

• Engine experiences reduced power, stalls, or is difficult to start.
• Air filter element is clogged, visibly dirty, or damaged.
• Primer bulb is cracked, stiff, or fails to draw fuel.
• Spark plug is fouled, has a worn electrode, or is damaged.
• As part of a scheduled tune-up or annual maintenance.

Installation Tips

• Before servicing, disconnect the spark plug wire to prevent accidental engine starts.
• Thoroughly clean the area around the filter cover before removal to prevent debris from entering the carburetor.
• Confirm the new filter is seated correctly in the housing before securing the cover.
• Check fuel line connections for leaks after replacing the primer bulb or fuel filter.
• Consult the equipment's owner's manual for detailed replacement instructions.