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Troy-Bilt Bronco 46B Riding Lawn Mower

Troy-Bilt Bronco 46B Riding Lawn Mower

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Troy-Bilt Bronco 46B Riding Lawn Mower

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Yard work shouldn't feel like a chore, and with the Troy-Bilt® Bronco™ 46B, you can ride comfortably with the mid-back adjustable seat and Step-Thru™ frame designed for easy on-and-off access. AutoDrive™ transmission is designed with foot pedal control to help make driving your mower easy, while the anti-scalp deck wheels help deliver a clean, even cut. The AGM battery is designed to provide reliable starting season after season.



•  17.5 HP*/500cc Briggs & Stratton® engine for reliable starting and plenty of power

•  AutoDrive™ transmission with foot-pedal design helps make driving your mower easy, with speeds up to 5.5 MPH

•  46" side-discharge, steel deck , has 2 anti-scalp deck wheels to help prevent turf damage and deliver a clean, even cut.

•  Mid-back seat and rubber footpads help provide comfort and minimize vibration when mowing

•  AGM battery provides a longer lifespan and lower maintenance compared to traditional lead acid wet batteries, with improved starting performance for reliable starting season to season.

Engine Brand  Briggs & Stratton® Fuel Tank Capacity  1.36 gal. US (5.15 L)
Engine Model  PowerBuilt Cylinders Single
Engine Model Number  31R907-0110 Engine Start Ignition Key
Engine Displacement  500cc Engine Oil Capacity 1.8 qt. US (1.7 L)
Engine Output  17.5HP Lubrication Fully pressurized
Starter Type  Electric Charging System 3 amp regulated
Fuel Gauge No Governor Mechanical
Choke Choke-a-matic Transmission Troy-Bilt
Air Filter Dual element Forward Speed 5 MPH / 8.1 KMH
Oil Filter No Reverse Speed 2.5 MPH / 4 KMH
Fuel Delivery Carburetor Rear Axle 3/4"
Battery 135 CCA Drive System CVT
Battery Type AGM (Absorbent Glass Mat) Transmission Control Foot Pedal
Battery Voltage 12V Transmission Housing Aluminum
Rear Differential Lock No Warranty 2-year limited residential
Deck Cutting Width 46 in Frame Warranty 2-year limited
Deck Wash Yes Front Axle Warranty 2-year limited
Deck Material 12-gauge steel Deck Shell Warranty 2-year limited
Deck Engagement (PTO) Manual lever Commercial Warranty No
Deck Construction Stamped Frame Robotically welded
Blade(s) Two Turning Radius 18"
Deck Lift Hand lever Bumper No
Cutting Height Range 1.5” - 3.75” Corrosion Protection Yes
Anti-Scalping 2 gauge wheels Front Pivot Bar 14-gauge steel
Deck Positions 5 Cruise Control No
Rear Tow Hitch Yes Brakes Disc
Seat Type
Mid Back
Bearing Type
Poly Bushing
Rear Tires
20"x 8"-8"
Seat Adjustment
Front Tires
15"x 6"-6"
Floor Mats
Tire Tread
Turf Saver
Mulch Kit Available separately Cup Holder Yes
Headlight(s) Standard Operator Presence System Yes
Model Number 13AN78BTA66    


Specifications Disclaimer Specifications subject to change without notice and without incurring obligation. Products depicted on website and other advertisements are for demonstration purposes only. Actual products offered for sale may vary in design, required attachments, safety features and non-functional appearance from. See other general disclaimers at the bottom of our website.


Assembly Instructions