A-B1799511-AI CARBURETOR
A-B1799511-AI CARBURETOR
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One New Aftermarket Replacement Carburetor Fits Briggs & Fits Stratton Vanguard V-Twin Engines
This aftermarket replacement carburetor Fits Briggs & Fits Stratton Vanguard V-Twin small engines in the 25-28 HP range. It replaces the original Nikki-style carburetor and is responsible for mixing air and fuel before delivery to the engine, ensuring reliable starting and smooth operation. Compatible with a wide range of lawn tractors, zero-turn mowers, and other outdoor power equipment powered by Fits Briggs & Fits Stratton Vanguard 810cc V-Twin engines.
Compatible Engine Models
Fits Briggs & Fits Stratton Vanguard V-Twin (25-28 HP): 44Q977, 49M977, 49L977 series (including 49L977-0001-G5, 49L977-0110-G1, 49L977-0110-G5, 49L977-0125-G5, 49L977-0126-G5, 49L977-1635-G5, 49M977-0001-G5, 49M977-0002-G5), 405777, 406777, 407677, 407777, 441777, 442577, 445577, 445677, 445777, 445877, 445977, 446677, 446777, 446877, 446977, 44677A, 40F777, 40G777, 40H777
Always verify your engine model and type number before ordering to confirm fitment. Engine model and type numbers are stamped directly on the engine.
Replaces Part Number(s):
B1799511-AI, B1799511
Aftermarket Interchange Numbers
799511, 796606, 799109
New aftermarket replacement part - not remanufactured, not used.



