HOOAI Carburetor Replacement for Tecumseh 7.5–10HP Engines — Manual Choke, Direct-Fit 640052

HOOAI 640052 is a direct-replacement carburetor designed to fit a range of Tecumseh-style small engines used on snowblowers, wood chippers, shredders and generators.

This replacement carburetor is engineered to restore fuel delivery and throttle response on machines that originally used part numbers such as 640349, 640054, 640058, 632334A and 632370A. It works with several Tecumseh-family engines across 7.5–10 horsepower ratings and includes a manual choke for reliable cold starts. The unit is supplied as a single carburetor assembly, ready to swap in with basic hand tools and standard gasket kits.

What engines and part numbers does this HOOAI carburetor replace?

The HOOAI 640052 is cross-compatible with many Tecumseh-style part numbers and models, making it a convenient replacement for common small engine equipment. It covers a broad span of model numbers and horsepower ratings.

• Replaces part numbers: 640349, 640052, 640054, 640058, 640058A, 632334A, 632370A, 632334
• Compatible engine power ratings: 7.5 hp, 8 hp, 8.5 hp, 9.5 hp, 10 hp
• Fits engine models: HM70, HM80, HM100, HMSK80, HMSK100

Which machines and applications will this carburetor work on?

This carburetor is suitable for a variety of outdoor power equipment that originally shipped with compatible Tecumseh-style carbs. It’s commonly used on seasonal and stationary gear.

• Snowblowers: models listed like Toro 521, 724, 824, 826 and Ariens 926, ST824, ST1028
• Wood chippers and shredders: Craftsman, MTD and similar brands that use Tecumseh engines
• Generators and other small-engine machines requiring manual-choke carburetors

How difficult is installation and what should I check before replacing it?

Installation is straightforward for anyone comfortable with small-engine maintenance. Basic tools and attention to fuel line and gasket conditions will help avoid leaks or misfitment.

• Prepare: disconnect spark plug and drain fuel or clamp fuel line
• Swap: remove air cleaner, disconnect throttle and choke linkages, unbolt old carburetor
• Inspect: replace mounting gasket, check fuel inlet, and confirm throttle/choke linkage alignment

What features does this replacement carburetor include?

The HOOAI carburetor provides the essential components needed for fuel metering and cold-start control without unnecessary extras. It focuses on dependable fuel flow and manual choke operation typical of Tecumseh-style systems.

• Manual choke for straightforward cold-start adjustment
• Designed to match OEM mounting and fuel inlet points for direct-fit replacement
• Built to work across multiple horsepower ratings and engine variants

Who is this for: This HOOAI 640052 carburetor is aimed at homeowners, landscapers, and small-fleet operators who maintain snowblowers, wood chippers, shredders, or portable generators powered by Tecumseh-style HM and HMSK engines. It’s a practical choice for DIY mechanics needing a cost-effective replacement to restore operability when original carburetors become clogged, leaky, or beyond cleaning. If you are servicing machines in the 7.5–10 hp range and need a compatible manual-choke carburetor that replaces common OEM part numbers, this unit is a compatible service option.