846109 Carburetor Fits for 845906 846109 356447 843324 846082 844988 350447 809013 808252 807943 807801 809017 843324 844041 844039 305442 305447 350442 305445 356442 Vanguard 16 Hp Engines

What It Is

This is an aftermarket carburetor designed for Briggs & Stratton Vanguard 16 HP engines used in lawn tractors, zero-turn mowers, and commercial mowers. It replaces the stock carburetor when the original fails due to clogged jets, worn gaskets, or fuel varnish.

Fitment & Compatibility

Before buying, confirm your engine model—this fits Vanguard 16 HP engines (typically model 305447, 350447, 356447, or similar). Check your engine’s model number (stamped on the blower housing or valve cover). This carburetor is cross-compatible with OEM part numbers 845906, 846109, 356447, 843324, 846082, 844988, 350447, 809013, 808252, 807943, 807801, 809017, 843324, 844041, 844039, 305442, 305447, 350442, 305445, and 356442. It fits most Briggs Vanguard 16HP single-cylinder engines, but not all—verify your engine’s specific model number against the list. The carburetor’s mounting flange and bore diameter are standard for these engines, but measure your old carburetor’s gasket pattern if unsure. It includes gaskets and fuel line fittings; you may need to transfer your old choke linkage or throttle spring.

Key Things to Know

• Quality: Aftermarket, but rated 4.8/5 from 17 reviews—good value vs. OEM (which costs 2-3x more). Expect minor fitment adjustments.
• Installation difficulty: Moderate. You’ll need basic tools (socket set, screwdriver) and must clean the intake manifold surface. Replace the fuel filter and drain old gas before installation.
• Common gotcha: The new carb may need a slight idle mixture screw adjustment (turn 1.5 turns out from lightly seated as a starting point). Also, ensure the gasket aligns perfectly—a leak causes rough idle.
• Fuel system: Use fresh, ethanol-free fuel if possible. Stale gas is the #1 reason these fail prematurely.

Should You Buy It

If you have a Briggs Vanguard 16 HP engine with a dead or poorly running carburetor, this is a solid, budget-friendly replacement. It’s not for purists who insist on OEM, but for most DIY mower owners, it’ll work well and save you $30-50. Skip it if your engine isn’t on the compatibility list or if you want a warranty-backed OEM part.