Tecumseh 590409A Screw Hardened Steel

Description:

The Tecumseh 590409A Screw is used to securely fasten recoil starter components and other engine assemblies in small gasoline engines. Commonly installed in Tecumseh-powered lawn mowers, snow blowers, tillers, generators, cultivators, chainsaws, and other outdoor power equipment requiring OEM fastening hardware. Maintenance teams and equipment repair technicians use this part for repair, retrofit, expansion, or replacement of worn or damaged engine fasteners.

Applications:

The Tecumseh 590409A is a genuine OEM replacement screw designed for use in Tecumseh engine assemblies, particularly recoil starter mechanisms and related engine components. It provides secure fastening and maintains proper alignment of moving parts during engine operation. This screw is commonly used in routine engine maintenance, starter repairs, and equipment overhauls on Tecumseh small engines found in lawn and garden equipment, snow removal machines, and utility power equipment. The 590409A supersedes the earlier Tecumseh 590409 part number.

Technical Specifications:

• Manufacturer: Tecumseh Products Company
• Manufacturer Part Number (MPN): 590409A
• Product Type: Screw
• Component Type: OEM Engine Fastening Screw
• Function: Secures recoil starter and engine assembly components
• Material: Hardened Steel
• Finish: Corrosion-Resistant Zinc-Plated Steel
• OEM Part: Yes (Genuine Tecumseh Replacement Part)
• Replaces Part Number: 590409
• Installation Location: Recoil Starter Assembly and Engine Components (application dependent)
• Torque Specification: 45–50 in-lb (when replacing 590409 with 590409A in applicable starter assemblies)
• Compatible Equipment: Lawn mowers, snow blowers, tillers, cultivators, generators, chainsaws, and other outdoor power equipment equipped with compatible Tecumseh engines
• Compatible Brands: Tecumseh, Craftsman, Toro, Briggs & Stratton (selected models), Lauson, Eska, and Preway (model dependent)
• Service Application: OEM replacement for stripped, damaged, or missing engine fasteners during maintenance and repair.

Common Replacements:

• Tecumseh 590409
• Tecumseh 650815
• Tecumseh 650856