799727 Carburetor Replacement for B&S 791858 792358 794572 698620 793224 697190 697141 for Craftsman Lawn Tractor Mower 14 15 16 17 17.5 18 HP with Cleaning Brush

What It Is

This is an aftermarket carburetor replacement for Briggs & Stratton single-cylinder engines commonly used in Craftsman lawn tractors and mowers. It delivers the fuel-air mixture to the engine and is designed to restore performance on 14–18 HP engines where the original carb is clogged or failing.

Fitment & Compatibility

Before buying, verify these three things:

• Engine model number: This carburetor replaces B&S part numbers 791858, 792358, 794572, 698620, 793224, 697190, and 697141. Find your engine’s model number (stamped on the valve cover or blower housing) and cross-reference with that list.
• Horsepower range: Works on 14, 15, 16, 17, 17.5, and 18 HP engines. Check your mower’s spec plate—this carb will not fit smaller or larger engines.
• Deck size: Not relevant for carburetor fitment. Ignore deck size claims; focus on engine model and HP.

This is an aftermarket part, not OEM Briggs & Stratton. It includes gaskets and a cleaning brush, but does not include the mounting studs or fuel line fittings—reuse your originals if they’re in good shape.

Key Things to Know

• Installation difficulty: Moderate. You’ll need basic hand tools (screwdrivers, pliers, socket set). Expect 30–60 minutes if you’re comfortable working on small engines.
• Quality: Generally good for the price, but some units may have minor casting flaws or require adjustment of the idle mixture screw (turn out 1.5 turns initially). Check for debris inside before installing.
• Common gotcha: The included gaskets may not match your engine’s intake manifold exactly. Dry-fit everything first—if the gasket is too thick or poorly cut, use your old one instead.
• Cleaning brush included: Useful for cleaning the old carb’s passages, but not a substitute for a full rebuild if the old carb is badly corroded.

Should You Buy It

If your Craftsman or compatible B&S-powered tractor runs rough, won’t start, or stalls under load and you’ve confirmed the engine model matches one of the listed numbers, this carburetor is a cost-effective fix. It’s not for professional landscapers who need OEM reliability, but for DIY homeowners, it’s a solid choice at half the price of a genuine B&S part. Skip it if you need a direct bolt-on with zero adjustments—be prepared to tune the idle mixture.