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Bronco™ 46-Inch Riding Lawn Mower
- Mfg.#
- 13A878BTA66
- Sku#
- 3776119
- 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.
* Estimated stock levels as of Thu, Apr 9, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
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.
Specifications
General
| Air Filter | Dual element |
|---|---|
| Battery | 135 CCA |
| Battery Type | AGM (Absorbent Glass Mat) |
| Battery Voltage | 12V |
| Blades | 2 |
| Choke | Choke-a-matic |
| Color | Black/Red |
| Cutting height, max (approximate) | 3-3/4 in |
| Cutting height, min (approximate) | 1-1/2 in |
| Deck Engagement | Manual lever |
| Deck Lift | Hand lever |
| Deck Material | 12-gauge steel |
| Deck Positions | 5 |
| Deck Width | 46 in |
| Drive System | CVT |
| Engine | Briggs & Stratton® |
| Engine Displacement | 500cc |
| Engine Model | PowerBuilt |
| Engine Model Number | 31R907-0110 |
| Engine Oil Capacity | 1.8 qt |
| Engine Starter Type | Ignition Key |
| Frame Construction | Robotically welded |
| Front Tires | 15"x 6"-6" |
| Fuel Gauge | No |
| Fuel Tank Capacity | 1.36 gal |
| Lubrication | Fully pressurized |
| Maximum Forward Speed | 5 MPH |
| Maximum Reverse Speed | 2-1/2 MPH |
| Number of Cylinders | 1 |
| Oil Filter | No |
| Rear Tires | 20"x 8"-8" |
| Seat Type | Mid Back |
| Starter Type | Electric |
| Tire Tread | Turf Saver |
| Transmission | Troy-Bilt |
| Turn Radius | 18 in |
| Type | Riding Lawn Mower |
Manufacturing Details
The following information is subject to change without notice
| Manufacturer Warranty | 2 yr Limited |
|---|
Related Documents
Installation Sheet (PDF)
