Slide Bush-Whacker ST-104 rotary mower Slide Bush-Whacker ST-104 rotary mower Slide ST-104 Cat 4 Drive Line Slide ST-104 Gear Boxes Main 120 HP, Outbound 100 HP Slide ST-104 Easy Access Shield Slide ST-104 Shock Absorber Slide ST-104 Sheer Bolt Slide ST-104 Replaceable Skid Shoes Slide ST-104 Chains (Standard) Slide ST-104 Blade Access Cover Slide ST-104 Swivel Tail Wheel Slide ST-104 Clevis


SpecificationsThe DifferenceComparison ChartColor Options
Gearboxes – 540 RPM 120 HP main or transfer box, 100 HP outboard boxes with 2 1/8” output shaft, malleable housing, forged alloy steel, carburized and hardened gears and shafts, tapered and ball bearings.

Slip Clutch – Heavy-duty spring type adjustment with two friction discs on main shaft, outboard protection by means of shock absorbing rubber disc connected with splined spiders which form a coupler.

Blades – 1/2” material, alloy spring steel, airlift design, free-swinging for clean cutting, mounted on shoulder bolts.

Two Tail Wheels – For 3 point hitch: Extra heavy-duty, tapered bearings, 4” by 8” laminated puncture-proof tires. For pull type: Extra heavy-duty, tapered bearings, 6” by 20” laminated puncture-proof tires.

Weight – 1,590 lbs.

Cutting Height – 2” to 13”

Cutting Width – 104” total cut, 57” cutting swathe to right of tractor center line and 47” to left of tractor center line.

Flat Steel Plate Sides – 1/4” Material Shaped to form sides of cutter.

Bush-Whacker Special Deck – 7 gauge lower deck & 12 gauge upper deck. The smooth, easy-to-clean top deck protects the inner support frame. Combined deck thickness is 0.2921″.

Shielded PTO & Outboard Shafts – Category 4 – Made from finest quality propeller shaft material and needle bearing universal joints.

Chair Guards Front & Rear

Heavy-Duty Category One or Two Hitch

Specifications listed are standard; however, any State Department of Transportation specifications that may differ from standard Bush-Whacker® specifications will take precedence and be implemented into production.

  • 7 gauge primary deck & 12 gauge upper deck.
  • The Bush-Whacker offset design allows for easier mowing against fence-rows and buildings.
  • 4-bolt mounting on gearboxes — bolt-heads are tack-welded to bottom of deck so one person can tighten the nuts or change the gearbox.

Comparison 8′ Brush Cutters

BrandBush-WhackerBush HogWoodsRhino
Cutting Heights2″-13″2″-13″2″-12″1 1/4″ – 12″
Cutting Capacity2″2″1.5″1″
Deck Thickness7 Gauge/12 Gauge10 Gauge7 Gauge10 Gauge
Side Skirt Thickness1/4″1/4″1/4″1/4″
Divider Gearbox HP120 HP120 HP120 HP100 HP
Spindle Gearbox HP100 HP90 HP99 HP70 HP
Blade Overlap4″3″4″4″
Blade Tip Speed15,831 FPM16,345 FPM15,900 FPM12,666 FPM
Safety DeflectorsChain GuardsRubber BeltingChain Guard OptionalChain Guard Optional
Mower Warranty1 Year Limited1 Year Limited1 Year Limited1 Year Limited
Gearbox Warranty5 Year Limited5 Year Limited6 Year Limited5 Year Limited
  • Yellow (Standard) PMS 1235

  • Blue PMS 293

  • Red PMS 1795

  • Orange PMS 172

Hall Manufacturing provides a limited warranty of one year on any machine or component, and five years on any mechanical gearbox or gearbox component.

This warranty covers defective materials and workmanship on the complete machine. Limitations and exclusions apply.