Partman Carburetor 491590 Carb Fit For 191700 192700 193700 Engine Series

What It Is

This is a complete aftermarket carburetor for small engines in the 191700, 192700, and 193700 series, commonly found on walk-behind mowers, pressure washers, and generators. It replaces the OEM part number 491590 and is designed to mix air and fuel for proper engine combustion.

Fitment & Compatibility

• Engine series: Fits Briggs & Stratton 191700, 192700, and 193700 series engines only. Check the engine model number (stamped on the valve cover or blower housing) before buying.
• OEM cross: Direct replacement for Briggs & Stratton part 491590. Not guaranteed to fit other carburetor numbers.
• Measurements: Two-bolt mounting pattern, single-barrel design. Verify the fuel line diameter (usually 1/4-inch) and throttle/governor linkage style match your engine.
• Deck size irrelevant: This carburetor fits the engine, not the mower deck. Ignore deck size—focus on engine series.
• Aftermarket note: Non-OEM part; may require minor adjustment (idle speed screw, float height) for optimal performance.

Key Things to Know

• Quality: Mixed reviews; some units arrive with debris or misadjusted floats. Inspect the gasket and bowl for damage before installation.
• Installation difficulty: Easy for anyone comfortable removing two bolts and swapping fuel lines. Expect 20–40 minutes.
• Common gotcha: The included gasket may be too thin—reuse your old OEM gasket if the new one leaks. Also, the fuel inlet barb can be slightly larger than stock; use a hose clamp to secure the line.
• Tuning required: After installation, you’ll likely need to adjust the idle mixture screw (if present) and throttle cable to prevent stalling or surging.

Should You Buy It

If your Briggs 191700–193700 engine needs a budget carburetor and you’re comfortable with basic tools and minor tuning, this is a solid $30 fix. It’s not for purists or those expecting plug-and-play perfection—but for DIYers reviving an old mower or pressure washer, it’s a cost-effective option that works most of the time.