594601 Carburetor Kit Compatible for Briggs & Stratton 796587, 796250, 795486,591736,794136 17hp 19hp Engines,Fits Niki Style Carb, Craftsman YS4500, Husqvarna YTA18542 and Troy-Bilt Bronco Mower

What It Is

This is a complete carburetor replacement kit (part 594601) designed for Briggs & Stratton 17hp and 19hp single-cylinder engines using a Niki-style carburetor. It’s intended for riding mowers like the Craftsman YS4500, Husqvarna YTA18542, and Troy-Bilt Bronco.

Fitment & Compatibility

• Engine models: Fits Briggs & Stratton part numbers 796587, 796250, 795486, 591736, and 794136. Verify your engine’s model and type numbers (stamped on the valve cover or blower housing).
• Carburetor style: Only for Niki-style carbs (flat, rectangular mounting flange with two bolts). Will not fit Walbro or other styles.
• Mower brands: Compatible with Craftsman YS4500, Husqvarna YTA18542, Troy-Bilt Bronco, and similar models using the engines above. Deck size doesn’t matter—engine model is the key.
• OEM vs aftermarket: This is an aftermarket replacement, not OEM Briggs & Stratton. Gaskets and seals may be slightly thinner—check for proper seal before final assembly.
• What to measure: Carburetor mounting bolt spacing (center-to-center) should be 3-1/8 inches. Also confirm your fuel line diameter (typically 1/4-inch) matches the included fittings.

Key Things to Know

• Quality: Aftermarket kit; reported to work well but may require minor adjustment of the idle mixture screw. Not as durable as OEM, but fine for standard homeowner use.
• Installation difficulty: Moderate. You’ll need to remove the air filter housing, old carb, and intake gasket. Clean the intake manifold surface thoroughly. Expect 30-60 minutes.
• Common gotcha: The included gaskets may not align perfectly with your intake manifold. If you see a vacuum leak after install, reuse the old OEM gasket or add a thin layer of gasket sealant.
• Fuel line: The kit usually includes a short fuel line and clamps, but if your mower uses a different fitting (e.g., barbed vs. push-on), you may need to reuse your original line or buy a separate adapter.

Should You Buy It

This kit is a solid budget fix for a riding mower with a dead or clogged Niki-style carb on a Briggs 17hp/19hp engine. It’s best for DIY homeowners who want to avoid a $50+ OEM carb and can handle basic adjustments. If you demand OEM fit or have a commercial mower, spend more on a genuine Briggs unit. For one-season or light-use mowers, this is a good value.