Carbhub 791858 Carburetor Replacement for 792358 791858 794572 799727 698620 793224 697190 697141 14hp 15hp 16hp 17hp 17.5 HP 18hp Craftsman Lawn Tractor Mower with Air Fuel Filter

What It Is

This is an aftermarket carburetor assembly for 14hp–18hp single-cylinder engines commonly found in Craftsman lawn tractors. It includes the carburetor, air filter, and fuel filter—a complete drop-in replacement for a worn or clogged original.

Fitment & Compatibility

Before buying, confirm your engine’s model number (e.g., 31P977, 31C707, 31R977) not just the tractor model. This carburetor replaces OEM part numbers 792358, 791858, 794572, 799727, 698620, 793224, 697190, and 697141. It fits many Craftsman, Husqvarna, and Poulan Pro tractors with 14hp–17.5hp Briggs & Stratton single-cylinder engines (typically 31, 33, 40, 42, or 46-inch decks). Measure your old carburetor’s mounting bolt spacing (usually 70mm or 80mm) and check that the fuel line diameter matches (common sizes are 1/4” or 5/16”). Verify the air filter shape—this kit uses a rectangular foam or paper element.

Key Things to Know

• Quality variance: This is a budget aftermarket unit. Some users report needing to adjust the idle mixture screw for smooth operation; the factory setting may be too lean.
• Installation difficulty: Easy for DIYers—remove two bolts, disconnect fuel line and throttle linkage, swap the carburetor, and reconnect. Total time ~30 minutes. No special tools required.
• Common gotchas: The included fuel filter may be smaller than OEM—check that it fits your fuel line. The choke linkage can be stiff; apply a drop of oil if needed. If the engine surges after install, clean the new carburetor’s jets with compressed air (debris from manufacturing can cause issues).
• No gasket included: You’ll likely need to reuse your old carburetor-to-intake gasket or buy a separate one (often a paper or metal gasket).

Should You Buy It

Buy this if your Craftsman or compatible tractor has a dead or gummy carburetor and you want a cheap, quick fix without rebuilding the original. It’s not OEM quality—expect some adjustment—but at $21.68 with 4.5 stars from 3,000+ buyers, it’s a solid value for budget-minded DIYers who don’t mind a little tuning. Avoid if you need exact OEM fit or can’t troubleshoot minor surging.