Financing Now Available for Online Purchases.* Learn More
Bronco™ 46B Riding Lawn Mower
Item#:
13AN78BTA66
Free Shipping March 15 – April 15, 2025
price.from
$2,299.00
price.msrp
Bronco™ 46B Riding Lawn Mower
Item#:
13AN78BTA66
Free Shipping March 15 – April 15, 2025
price.from
$2,299.00
price.msrp
Yard work doesn’t have to feel like a chore. With the Troy-Bilt® Bronco™ 46B, you can ride comfortably thanks to the mid-back adjustable seat and Step-Thru™ frame, which makes getting on and off easy. The AutoDrive™ transmission features foot pedal control, making it simple to drive your mower. Anti-scalp deck wheels ensure a clean, even cut. Plus, 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.
You May Also Like
Bronco™ 46B Riding Lawn Mower Features
Drives Like A Car
Foot pedal controlled AutoDrive™ transmission allows you to easily drive your riding mower like a car.
Comfort and Safety
Rubber footpads reduce vibration and increase traction.
Quickly Adjust Cutting Height
5-position height adjustment on the fender makes it easy to change cutting heights from 1.5" - 4"
Maneuverability
Easier navigation around landscape borders and obstacles with 18" turn radius.
Easy Access
Rugged StepThru™ frame design makes it easy to get on and off your riding mower.
Easier Clean-Up
Make yard clean up easier by using an available rear bagger to collect grass clippings and leaves for composting or disposal.
Confidence
Backed with a 2-year limited warranty for peace of mind
Pride
Headquartered in Valley City, OH, select Troy-Bilt items are designed, built and tested right here in the U.S.— with U.S. and global parts — from Ohio and Mississippi to Tennessee and Arizona.
46" Cutting Deck
46" side-discharge cutting deck delivers a clean, even cut.
Versatile Performance
Convenient rear hitch makes attaching available tow-behind attachments, like dump carts, spreaders or aereators, easy and quick.
Reduce Turf Damage
Steel cutting deck with anti-scalp deck wheels to prevent turf damage, delivers a clean, even cut.
Deck Wash
Attach a standard garden hose to the deck wash port to quickly clean underside of deck and prevent buildup of clippings
Specs & Maintenance
Engine
- Engine Brand Briggs & Stratton®
- Engine Model PowerBuilt
- Engine Model Number 31R907-0110
- Engine Displacement 500cc
- Engine Output 17.5HP
- Starter Type Electric
- Fuel Tank Capacity 1.36 gal. US (5.15 L)
- Cylinders Single
- Engine Start Ignition Key
- Engine Oil Capacity 1.8 qt. US (1.7 L)
- Lubrication Fully pressurized
- Charging System 3 amp regulated
- Fuel Gauge No
- Governor Mechanical
- Choke Choke-a-matic
- Air Filter Dual element
- Oil Filter No
- Fuel Delivery Carburetor
Battery
- Battery 135 CCA
- Battery Type AGM (Absorbent Glass Mat)
- Battery Voltage 12V
Drive System
- Transmission Troy-Bilt
- Forward Speed 5 MPH / 8.1 km/h
- Reverse Speed 2.5 MPH / 4 km/h
- Rear Axle 3/4"
- Drive System CVT
- Transmission Control Foot Pedal
- Transmission Housing Aluminum
- Rear Differential Lock No
Cutting Deck
- Deck Cutting Width 46 in
- Deck Wash Yes
- Deck Material 12-gauge steel
- Deck Engagement (PTO) Manual lever
- Deck Construction Stamped
- Blade(s) Two
- Deck Lift Hand lever
- Cutting Height Range 1.5” - 3.75”
- Anti-Scalping 2 gauge wheels
- Deck Positions 5
Chassis
- Frame Robotically welded
- Turning Radius 18"
- Bumper No
- Rear Tow Hitch Yes
- Corrosion Protection Yes
- Front Pivot Bar 14-gauge steel
Controls
- Cruise Control No
- Brakes Disc
Comfort
- Seat Type Mid Back
- Armrests No
- Seat Adjustment Knob
- Floor Mats Rubber
Wheels
- Bearing Type Poly Bushing
- Rear Tires 20"x 8"-8"
- Front Tires 15"x 6"-6"
- Tire Tread Turf Saver
Additional Specifications
- Hour Meter No
- Mulch Kit Available separately
- Headlight(s) Standard
- Cup Holder Yes
- Operator Presence System Yes
- Model Number 13AN78BTA66
Warranty
- Residential Warranty 3-year limited
- Frame Warranty 2-year limited
- Front Axle Warranty 2-year limited
- Deck Shell Warranty 2-year limited
- Commercial Warranty No
- Engine Warranty 2-year limited
Disclaimers
- Specifications 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.
- Horsepower *As rated by engine manufacturer
Model | Manual | Form Number | |
|---|---|---|---|
| 13AN78BTA66 | MANL:OPER:DIG:TRILING:LT5 | ||
| MANL:OPER:DIG:TRILING:LT5 | 769-26678 | Download | |
| SHEET:SUP:BILING:EPA:EVP:21-22 | 769-26272 | Download | |
| SHEET:SUP:BILING:EPA:EVP:22-23 | 769-26607 | Download | |
| SHEET:SUP:Warranty_Addendum_In | 769-26830 | Download | |
| SHEET:SUPP:WARR/PARTS:TRI:TB L | 769-26665 | Download | |
| SHEET:SUPP:WARR/PARTS:TRI:TB L | 769-26859 | Download |
