640052 Replacement Carburetor

A snowblower that will not run properly can turn a quick seasonal job into a parts-matching exercise. This 640052 replacement carburetor is listed for several Tecumseh engines and comes with related fuel-system parts, so it may suit a repair where more than the carburetor itself needs replacing. The key is matching the engine and existing part number before ordering, similar-looking parts are not automatically interchangeable.

Key specifications

This is a replacement carburetor identified as 640052. The listing also names replacement numbers 640349, 640054 and 640058A. Stated engine fit includes Tecumseh HMSK80, HMSK85, HMSK90, HMSK100, LH358SA, LH318A and LH318SA, with use described for 8HP, 9HP and 10HP engines. It also refers to snowblowers associated with Toro model numbers 38635, 38640, 38645, 38642 and 38641, and mentions MTD, Cub Cadet and Yard Machines snowblowers.

There is a detail worth checking: HSMK110 appears in the product name, while the compatibility description lists other engine codes. Based on the listing, that does not settle fit for every machine carrying a similar model designation. Compare the part number and complete engine model with the carburetor being replaced, rather than relying on horsepower or the equipment brand alone.

Who it’s for

This kit is aimed at someone repairing a compatible Tecumseh-powered snowblower or another listed piece of equipment, such as a generator or chipper/shredder. It may be useful when a repair calls for the carburetor plus several small fuel-system components, rather than a carburetor-only purchase. For example, during a snowblower tune-up, having the fuel lines and filter on hand could make it easier to address those parts in the same repair session.

It suits you if the existing part number or engine details line up with the listed applications and you want the included extras. It may not suit you if you need a confirmed fit for an engine model that is not clearly listed, or if you only want a single replacement component. In that case, a carburetor-only part with an exact match may be the more straightforward route.

What’s included

The package is listed as containing one carburetor, one fuel filter, one spark plug, two fuel lines (one for the primer bulb and one for the carburetor), one fuel shut-off valve and one primer bulb. It also includes throttle control knobs 35438 and 35440, two bolts, six clamps and two gaskets. That is a fairly broad set of repair parts, but the listing does not specify dimensions or provide additional installation details. Check that the supplied lines, fittings and controls suit your particular setup before beginning the job.

Buying questions

Which replacement numbers are named? The listing gives 640052, 640349, 640054 and 640058A.

Does the package include fuel-system parts? Yes. It lists a fuel filter, two fuel lines, a shut-off valve, a primer bulb, clamps and gaskets, alongside the carburetor and other parts.

Is it confirmed for every 8HP–10HP engine? No universal fit is stated. Those engine ratings are mentioned, but the engine model and part number still need to match.

Final verdict

This is a practical all-in-one repair kit when the 640052 number or a listed Tecumseh application matches the machine and you can use the extra components. Its main advantage over buying only a carburetor is the included selection of fuel and control parts, its main drawback is that the compatibility details do not resolve every model reference consistently. Confirm the exact engine code and replacement number first, especially for HSMK110, before choosing it.