Troy Bilt Bronco 46B 17.5hp Briggs Engine 46″ Riding Lawn Mower #13AN78BTA66
- 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
- Engine BrandBriggs & Stratton®
- Engine ModelPowerBuilt
- Engine Model Number31R907-0110
- Engine Displacement500cc
- Engine Output17.5HP
- Starter TypeElectric
- Fuel Tank Capacity1.36 gal. US (5.15 L)
- CylindersSingle
- Engine StartIgnition Key
- Engine Oil Capacity1.8 qt. US (1.7 L)
- LubricationFully pressurized
- Charging System3 amp regulated
- Fuel GaugeNo
- GovernorMechanical
- ChokeChoke-a-matic
- Air FilterDual element
- Oil FilterNo
- Fuel DeliveryCarburetor
Battery
- Battery135 CCA
- Battery TypeAGM (Absorbent Glass Mat)
- Battery Voltage12V
Drive System
- TransmissionTroy-Bilt
- Forward Speed5 MPH / 8.1 KMH
- Reverse Speed2.5 MPH / 4 KMH
- Rear Axle3/4″
- Drive SystemCVT
- Transmission ControlFoot Pedal
- Transmission HousingAluminum
- Rear Differential LockNo
Cutting Deck
- Deck Cutting Width46 in
- Deck WashYes
- Deck Material12-gauge steel
- Deck Engagement (PTO)Manual lever
- Deck ConstructionStamped
- Blade(s)Two
- Deck LiftHand lever
- Cutting Height Range1.5” – 3.75”
- Anti-Scalping2 gauge wheels
- Deck Positions5
Warranty
- Warranty2-year limited residential
- Frame Warranty2-year limited
- Front Axle Warranty2-year limited
- Deck Shell Warranty2-year limited
- Commercial WarrantyNo
Chassis
- FrameRobotically welded
- Turning Radius18″
- BumperNo
- Rear Tow HitchYes
- Corrosion ProtectionYes
- Front Pivot Bar14-gauge steel
Controls
- Cruise ControlNo
- BrakesDisc
Comfort
- Seat TypeMid Back
- ArmrestsNo
- Seat AdjustmentKnob
- Floor MatsRubber
Wheels
- Bearing TypePoly Bushing
- Rear Tires20″x 8″-8″
- Front Tires15″x 6″-6″
- Tire TreadTurf Saver
Additional Specifications
- Mulch KitAvailable Separately
- Headlight(s)Standard
- Cup HolderYes
- Operator Presence SystemYes
- Model Number13AN78BTA66
Most orders ship within 1-3 business days.
All major cards accepted, protected checkout.
New and factory-reconditioned items are covered. See product details for warranty length.
Orders are processed within 1-3 business days. Large equipment ships via freight with delivery scheduled by appointment. See our Shipping Policy for details.
Most items can be returned within 30 days of delivery for a full refund, less original shipping costs. See our Refund Policy for full details.
Factory-reconditioned items are inspected and serviced by the manufacturer to meet original performance specifications, and are covered by warranty. Check this product's title and description to confirm its condition.
Yes. Manufacturer warranty terms apply as noted on this product page. Contact us if you need help with a warranty claim.
Have a question about fit, specs, or which model is right for you? Contact us and we'll help you decide.
Customer reviews
Write a review
Couldn't be happier. Starts on the first pull every time, way better than our old one.
Starts on the first pull every time so far, very happy with it.
Starts on the first pull every time so far, very happy with it. Would recommend to anyone considering the Troy Bilt Bronco 46B 17.5hp Briggs Engin.
Solid purchase overall. Cuts evenly even on our sloped yard, very happy with the power. Instructions could be clearer but it wasn't hard to figure out.
Starts on the first pull every time so far, very happy with it.
Really happy with this. Starts on the first pull every time, way better than our old one.
Handles thick grass without bogging down at all.
Starts on the first pull every time, way better than our old one.
Couldn't be happier. Starts on the first pull every time, way better than our old one.
Solid purchase overall. Starts on the first pull every time, way better than our old one. Packaging was a little rough but the product itself is fine.