Walbro 98-405-7 Compression Spring Carburetor Part

Product Description

The WALBRO 98-405-7 is a compression spring designed for use in Walbro carburetors found on small engines. Compression springs in carburetor assemblies maintain tension on metering levers, needle valves, and throttle or choke linkages, ensuring consistent fuel delivery and proper air-fuel mixture under varying load conditions. This is a direct OEM-style replacement component installed by small engine technicians and power equipment service shops during carburetor rebuilds or fuel system repairs.

This compression spring is suited for lawn and garden power equipment applications where Walbro carburetors are commonly used. Typical installations include handheld and walk-behind equipment such as string trimmers, chainsaws, blowers, and similar small engine platforms. It is a common service part used when rebuilding carburetor assemblies to restore original metering and valve function.

Key Features

• OEM Walbro compression spring for carburetor fuel system assemblies
• Maintains proper tension on metering lever and needle valve components
• Designed for use during carburetor rebuild and fuel system service
• Direct replacement to restore original manufacturer specifications

Compatibility

Designed as an OEM-style replacement compression spring for Walbro carburetor assemblies used in small engine lawn and garden equipment.

Installation Notes

Installation is typically performed by a small engine technician during a carburetor disassembly and rebuild. Shut off the fuel supply and relieve any residual fuel pressure before opening the carburetor. Use appropriate small engine carburetor tools and refer to the Walbro service manual for the specific carburetor model to confirm correct spring seating and orientation. Take care not to over-compress or deform the spring during reassembly.

Technical Specifications

• Component Type: Compression Spring
• Application: Small Engine Carburetor

Standard Information

• Brand: WALBRO
• Manufacturer Part Number: 98-405-7