Carbhub Carburetor Replacement for 799866 790845 799871 796707 794304 12H800 Engine Toro Craftsman Lawn Mower Carb Toro 22" Recycler with Air Filter Spark Plug Primer Bulb

What It Is

This is an aftermarket carburetor kit designed for Toro 22" Recycler lawn mowers and other machines powered by the Briggs & Stratton 12H800 engine series. It replaces OEM part numbers 799866, 790845, 799871, 796707, and 794304. The kit includes the carburetor, air filter, spark plug, and primer bulb.

Fitment & Compatibility

Before buying, verify three things:

• Engine model: Must be Briggs & Stratton 12H800 series (check engine shroud for model/type numbers).
• Deck size: Primarily fits Toro 22" Recycler models, but also compatible with many Craftsman mowers using the same engine.
• OEM cross-check: Confirm your mower’s original carb part number matches any of these: 799866, 790845, 799871, 796707, 794304. If not, measure mounting bolt spacing (typically 2.5" center-to-center) and bowl diameter (~1.5").

This is an aftermarket replacement, not OEM. It may have slight differences in jetting, fuel bowl gasket thickness, or choke linkage placement. If your mower has a different engine series (e.g., 10H800 or 14H800), this will not fit.

Key Things to Know

• Quality varies: Many users report it works well out of the box, but some units have debris in the fuel bowl or a loose float. Inspect and clean before installing.
• Installation difficulty: Moderate. You’ll need basic tools (socket set, screwdrivers). Expect 30-60 minutes. The primer bulb and fuel line connections can be tight.
• Common gotchas: The included spark plug may not match your gap spec (check and adjust to 0.030"). The air filter is generic—verify it seats properly in your housing. If your mower has a fuel shutoff, close it before disconnecting lines.
• Jetting: This carb is preset for standard altitude and fuel. If you mow above 5,000 feet, you may need to re-jet or adjust the mixture screw (if adjustable).

Should You Buy It

If your Toro 22" Recycler or Craftsman mower with a 12H800 engine is surging, hard to start, or leaking fuel, this kit is a cost-effective fix. It’s not OEM quality, but for $15.88 it reliably solves carburetor issues for most home owners. Skip it if you need exact factory fitment for commercial use or have a non-standard engine series.