799727 Carburetor Compatible with Briggs & Stratton 799727 698620 794572 14HP 15HP 16HP 17HP 17.5 HP 18HP Intek Engines Lawn Tractor Mower Nikki Carb,with Air Filter kit

What It Is

This is an aftermarket carburetor assembly designed to replace the Nikki-style carb on Briggs & Stratton Intek single-cylinder engines (14–18 HP). It includes the carb, air filter, and gaskets, making it a drop-in replacement for mowers, tractors, or generators using those engines.

Fitment & Compatibility

• Engine models: Fits Briggs & Stratton Intek engines with OEM part numbers 799727, 698620, 794572 (and superseded versions). Check your engine’s model/type/code (stamped on valve cover or blower housing) against these numbers.
• Horsepower range: 14 HP, 15 HP, 16 HP, 17 HP, 17.5 HP, 18 HP. Confirm your engine’s actual HP (not deck size) – deck size doesn’t matter.
• Machine fit: Used on many lawn tractors (Troy-Bilt, Craftsman, Husqvarna, MTD, etc.) with Intek engines. Not for Vanguard, OHV, or older flathead engines.
• Measurements: The mounting flange pattern and bowl diameter match the Nikki OEM. If your original carb has a different gasket shape or bolt spacing, it won’t fit. Compare the old gasket to the new one.
• OEM vs aftermarket: This is a non-OEM replacement. It may need minor adjustment (idle screw, float height) to run perfectly.

Key Things to Know

• Quality: Most users report it works well out of the box. A small percentage get a sticky float or debris in the bowl – inspect and clean before install.
• Installation difficulty: Moderate – you’ll need basic tools (screwdrivers, pliers) and may need to drain fuel, remove the old carb, and swap gaskets. No special skills required.
• Common gotchas: The included air filter may be slightly loose in some housings – reuse your old filter if needed. The fuel line may be stiff; replace it if cracked. Check the throttle/governor linkage alignment – it’s easy to misroute.
• Adjustments: If the engine surges or runs rough, adjust the idle mixture screw (usually 1.5 turns out from lightly seated). Float height should be ~1/8 inch – check if flooding occurs.

Should You Buy It

Yes, if you have a Briggs Intek engine with a failing Nikki carb (hard start, surging, fuel leak) and you want a cost-effective fix that works for most users. Skip it if you need exact OEM fit for a commercial mower or if you’re not comfortable with simple carb adjustments – in that case, buy an OEM replacement or rebuild kit.