FrontMount™ 700 Series

Air-Cooled Gas

MODEL 729 BT

Take advantage of maximum productivity and versatility with the Grasshopper Model 729BT riding lawn mower. Out front mowing decks reach under low-hanging obstacles to reduce string trimming needs. Take advantage of zero-turn maneuverability and powerful performance that meets the demands of rugged daily use, while providing superior operator comfort. Use the PowerFold® deck lift/electric height adjustment feature to raise the deck for cleaning the underside. Cutting decks also remove to add a variety of turf renovation and snow removal implements.

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Mowing speeds up to 10.0 MPH and 6.55 acres/hr. based on 72" cutting width. Actual results may vary. Click here for details.

DECK SIZES

52"
61"
72"

COLLECTORS

8F
8HT
12F
12HT
15B
HighLift™ 15B
25

IMPLEMENTS

AERA-vator Coreless Aerator
Little Bully Dozer Blades
Edge-EZE Edger
Tine-Rake Dethatcher
CleanSweep Rotary Brooms
Shielded Sprayer
DriftBuster Snowthrowers
Turbine Blower
V-Plow
FrontMount PowerVac Collection Systems

*Models may be shown with optional equipment. Applicable freight, set-up and taxes not included in "Starting At" MSRP. Options and accessories extra. All prices USD and subject to change without notice. See local dealer for complete pricing and available offers.

  • Single-fork tail wheels enhance weight distribution, improve stability and enhance castering effect when maneuvering.

  • Tandem 16cc Parker pumps-in-reservoir transmission with design-matched Parker high-torque wheel motors
  • In-line CoolFan™ cooling system for cooling efficiency and long service intervals
  • Delivers smooth response and requires less maintenance, with industry-leading 1,000-hour fluid change interval

  • Add or remove implements in minutes without tools with QuikConverter™ Implement System
  • Equip your out-front mower with a wide range of tools, including turf cleanup, renovation and snow removal implements that extend your productivity year-round

Isolates the engine and T-Drive™ from the operator platform for an unprecedented vibration-free experience

  • Fewer than 10 grease points and easy top-side access to belts and filters
  • 1,000-hour transmission fluid change intervals
  • Self-tensioning belts minimize cost and labor on routine maintenance

  • Standard, low profile Roll-over Protection System (ROPS) structure with an adjustable seatbelt
  • Dampened steering levers that return to neutral from forward and reverse
  • Interlock switches that shut down the engine when the operator leaves the seat while PTO is engaged or levers are in drive position

  • 896 cc, air-cooled OHV Vanguard Big Block V-twin engine with horizontal crankshaft for longer life

Standard on all FrontMount™ DuraMax® decks, PowerFold® is the zero-turn mower industry's first electric deck lift (introduced in 2004).

PowerFold® rotates the deck nearly 90 degrees to provide easy access to the underside of the deck for simplified maintenance and mulching package installation, plus space-saving portability and storage.

The feature also adjusts cutting height between 1.25 and 5.0 inches and controls deck lift functions using a single switch.

  • Extra-deep, 5.5-inch deck is fabricated from heavy-gauge formed steel with a reinforced anvil edge
  • Specially designed cutting chambers enhance airflow for better cut quality
  • Deck easily converts from side discharge to optional Down Discharge™ mulching or PowerVac™ collection
  • Sentry™ spindles with massive, 8-inch flanges anchored in a 6-bolt pattern, spread the force of impact for greater strength
  • Spindle planes are fabricated from double-layered formed steel laminate and combine with the spindles to form a triple-strength deck to keep blades level and deliver a high-quality cut.
  • Sentry™ spindle guards shield spindle housing and seal lower bearings from fiber wrap and dirt ingestion

13x6.50x6 rib tread, pneumatic (2)

  • Robotically-welded, high-grade steel construction and I-beam reinforcement for long-lasting durability
  • Centered-bearing design provides greater load-bearing capacity to easily handle the weight of operator, fuel and high-capacity collector with reserve strength for curb shocks and weight shifts
  • Tough-as-nails powder-coated finish is fusion-bonded for chip and rust resistance

LED work lights provide improved visibility in low light situations.

  • Commercial Use: 3-year unlimited hours; limited warranty: First two years covering parts and labor; third year covering parts only.
  • Residential Use: 4-year or 800-hour (whichever comes first); limited warranty covering parts and labor.

  • The deep-cushioned, deluxe Premium Comfort Seat features a coil-spring suspension and padded lumbar support for all-day comfort. Iso-mounting eliminates vibration before it reaches the seat, and both padded seat and armrests are covered in scuff-resistant, breathable CoolTemp Cordura® fabric, which dissipates heat and won’t tear or crack with extended use.
  • Operational controls including throttle, ignition and push/pull PTO switches, angled View-Eze™ console and adjustable cup holder are well positioned for visibility and ease of reach.
  • One- or two handed operation with QuikAjust Tilt™ dual levers with 9-inch comfort range to custom fit operator's reach. Levers automatically return to neutral from either forward or reverse position and are less strenuous than riding mowers with steering wheels.


Type/Horsepower/Cylinders
B&S Vanguard Big Block, V-Twin
Displacement
54.7 cu. in. (896 cc)
Lubrication System
Pressure Lube/Filter
Crankshaft
Horizontal
Cooling System
Air
Fuel
Gasoline - unleaded
Fuel Capacity
7.2 U.S. Gal. (27.3 l)
Optional Fuel Capacity
NA
Air Cleaner
Heavy-duty, remote mounted, cyclonic, dual element air filtration.
Muffler
Ultra quiet, single, industrial type

DECK
DuraMax
Mulching Package #
504567(52), 504569(61), 504571(72)
DURAMAX® DECK SIZE
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
*
– 61" Deck
*
– 72" Deck
*
CUTTING HEIGHT RANGE
1.25 to 5.0 in. (3.2 cm to 12.7 cm)
CONSTRUCTION (Robotic-welded steel)
Tubular 2.25 in. x 4 in. boxed members with 0.25 in. gussets. Formed double thickness hardened steel (0.269 in. 7.6% thicker than 0.25 in. (6.35 mm)) truss spindle plane and (3) Sentry™ spindles and a triple-strength upper deck, 1/2 inch thick in stress zones. Geometrically engineered design with 7 gauge skirts to withstand the brunt of commercial mowing.
BLADES (Tempered, alloy steel)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
(3) 18 in. (45.7 cm)
– 61" Deck
(3) 21 in. (53.3 cm)
– 72" Deck
(3) 25 in. (63.5 cm)
SPINDLE ASSEMBLIES
Sentry™ Spindle System, 2.5 cm (approx. 1 in.) O.D. shaft. Double bearings greasable from top of deck. Spindle head designed to eliminate fiber wrap. Spindle cones shield housing and lower bearings from fiber wrap and dirt ingestion.
SPINDLE HOUSINGS
8 in. (20.3 cm)-diameter machined aluminum housing with 6-bolt pattern.
BLADE DRIVE
Maintenance-free gearbox with single Kevlar V-belt and idler arm tensioning.
TRIMABILITY (Outside of std. tire to left trim side)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
1.0 in. (2.5 cm)***
– 61" Deck
8.5 in. (21.6 cm)***
– 72" Deck
13.75 in. (34.9 cm)***

Battery (maintenance-free)
12 Volt
Starter
Solenoid shift
Ignition
Breakerless
Interlock System
Prevents engine start when PTO clutch is engaged or steering levers are in drive position. Allows operator dismount without engine shutdown only when PTO is disengaged and steering levers are locked in neutral.

Seat
Iso-mounted Premium Comfort Seat. Features include a high-back, deep-cushioned, foam-padded Cordura®-covered, padded arm rests, padded backrest with lumbar support, coil-spring suspension and embroidered Grasshopper logo on seat back.
Suspension
AntiVibe PowerPlatform™ with iso-mounted seat and footrest
Console-mounted Instruments
Low engine oil pressure and parking brake warning lights, digital hour meter, work lights, ignition and push/pull PTO switches. Choke integrated with throttle lever.
Work Lights
Standard - LED
Hour Meter
Standard

Type
T6® hydrostatic transmission with tandem 16 cc Parker pumps-in-reservoir, in-line CoolFan™ for cooling efficiency, design-matched Parker high-torque wheel motors. AntiVibe Power Platform® reduces vibration for the operator.
Filtration/Hydro Fluid
Integrated, replaceable, high-efficiency, fine-particle filter / Grasshopper CoolTemp Hydro-Max™ fluid withstands high and low temperature extremes for 1,000 hour change intervals.
Speed
0 - 10.0 mph (0 - 16.1 kph) forward 0 - 6.0 mph (0 - 9.7 kph) reverse
Turning Radius
True zero degree, turns within own length with counter-rotating, independently powered drive wheels. Seat is pivot point.
Steering
One- or two-hand operation with adjustable HydraSmooth™ QuikAjust Tilt™ dual levers with 9-inch adjustment for a custom fit that automatically return to neutral from either forward or reverse position.
Brakes
Dynamic braking through hydrostatic transmission.
Parking Brake
Disc parking brakes, one for each drive wheel.
Attachment Drive
Telescoping PTO shaft with two high-speed U-joints, Quik-D-Tatch® coupler and heavy-duty electric Mag Stop® blade clutch/brake.

MidMount
Drive Wheels - Standard (4-ply rated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
NA
– 61" Deck
NA
– 72" Deck
NA
Drive Wheels – Optional (4-ply rated)
NA
Front Wheels – All Models
NA
FrontMount
Drive Wheels – Standard (4-ply rated)
22x11.00x10 bar tread, high flotation, 4-ply rated
Drive Wheels – Optional (4-ply rated)
22 x 11.00-10, turf tread, 4-ply rated
22 x 11-12 Michelin® X® Tweel® airless turf tread
Single Tail Wheel
13x6.50x6 rib tread, pneumatic (2)
Wide Stance Single Fork Tail Wheel
NA
Deck Tires (4-ply rated)
– 41" Deck
NA
– 42" Deck
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
9x3.50x4 (flat proof), 4-ply rated
– 61" Deck
11 x 4.00-5 (flat-proof), 4-ply rated
– 72" Deck
13x6.50x6 rib tread, pneumatic, 4-ply rated

Height (Seat Back)
47.0 in. (119.4 cm)
Height (Seat Cushion)
30.5 in. (77.5 cm)
Height (ROPS)
69.0 in. (175.3 cm)
Length (frontmount w/ DuraMax® Deck - Mowing Position)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
105.5 in. (268.0 cm)
– 61" Deck
107.5 in. (273.0 cm)
– 72" Deck
117.5 in. (298.5 cm)
Length (FrontMount Power Unit + DuraMax® Deck - Folded Up)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
88.5 in. (224.8 cm)
– 61" Deck
91.0 in. (231.1 cm)
– 72" Deck
104.0 in. (264.2 cm)
Deck Width (Side Discharge)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
65.5 in. (166.5 cm)
– 61" Deck
74.5 in. (189.2 cm)
– 72" Deck
85.5 in. (227.3 cm)
Deck Width (Mulch*)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
53.5 in.* (135.9 cm)
– 61" Deck
62.5 in.* (158.8 cm)
– 72" Deck
73.5 in.* (186.7 cm)
FrontMount PowerUnit Only (Width/Length)
50.0 in. (127.0 cm)/67.0 in. (170.2 cm)
FrontMount Power Unit (Wheelbase)
51.5 in. (130.8 cm)

(Uncrated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
1300 lbs. (589.7 kg)
– 61" Deck
1350 lbs. (612.3 kg)
– 72" Deck
1475 lbs. (669.0 kg)
FrontMount Power Unit Only (uncrated)
930 lbs. (421.8 kg)
FrontMount Deck Only - Side Discharge (uncrated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
370 lbs. (167.8 kg)
– 61" Deck
420 lbs. (190.5 kg)
– 72" Deck
545 lbs. (247.2 kg)
Mulching Package
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
29 lbs. (13.2 kg)
– 61" Deck
36 lbs. (16.3 kg)
– 72" Deck
44 lbs. (20.0 kg)

All specifications and information displayed on this Web site are subject to change without notice.

Powerful, deck-driven PowerVac™ collection systems deliver one-pass perfection every time, and are available with a wide range of twin or triple mesh bag or high-capacity metal hopper collectors.

Used in conjunction with PowerFold® electric deck lift/height adjustment, this armrest-mounted switch controls deck lift functions and adjusts cutting height between 1.0 and 4.5 inches on the go.

Optional rear discharge shield kit converts 34R Series decks to direct clippings out the back of the deck for a smooth cut and no windrowing.

The optional SpeedTrimming™ heavy-duty, anti-scalp roller kit for 52-inch and larger DuraMax® decks speeds close trimming near buildings, fences retaining walls and other landscaping features. Kits available for both left and right sides of cutting decks.

Allow for controlled side-to-side flotation of the deck in rolling terrain for a smooth, even cut.

Raises the front of the deck to maneuver over soft or uneven ground and to clear curbs, trailer ramps and other obstacles. Lift switch is standard in lever on current models. Kit includes Universal Wiring Harness and requires 50-lb. counterweight and counterweight mount kit.

Every FrontMount™ mower accepts a range of time- and labor-saving QuikConverter™ implements for even greater flexibility and productivity year-round.

52-, 61- or 72-inch 34 Series DuraMax® and 61-inch 36 Series (3661) side-discharge decks easily convert to Down Discharge™ mulching or PowerVac™ collection. All come standard with PowerFold® electric deck lift/height adjustment.

52-, 61- or 72-inch 35R Series and 61-inch 37R Series (3761) dedicated rear discharge decks come standard with PowerFold® electric deck lift/height adjustment

An optional Air Dam Kit can be installed along the front edge of most mower decks to minimize dust and dirt escaping from the front of the mower.

Provides additional seating room for larger operators or to accommodate cell phones or pagers. Requires seat belt extension.

The Filter Minder alerts the operator when airflow is restricted in the air canister on dual-element air filters.

The full-view metal cab keeps moisture out and heat inside to keep the operator comfortable and productive. Standard electric windshield wiper clears windshield during operation. Powerful LED lights light up your path. Counterweight required.

The optional Down Discharge™ mulching package with GrassMax™ High-Low Mulching blades cuts and recuts clippings and directs them deep into the turf, enriching turf and producing a beautifully manicured cut.

Dual-fork tail wheels or wide stance single-fork tail wheels.

Yellow beacon attaches to OPS to provide greater visibility in high-traffic areas.

Optional premier suspension seat provides the ultimate in operator comfort. Low-profile seat slides fore and aft and includes an integrated shock absorber that manually adjusts to operators between 100 – 300 lbs. Other ergonomic features include a backrest that tilts from -5 degrees to +30 degrees, a lumbar support mechanism, adjustable armrests and a retractable seat belt.

Lightweight, water repellent, UV-resistant vinyl canopy mounts easily to OPS or ROPS to limit exposure to direct sunlight, reducing eye strain and increasing operator comfort.

Provides an additional two inches of leg clearance.

Diamond-plated aluminum canopy is highly resistant to abrasions. Mounts to ROPS or OPS to increase operator comfort by limiting exposure to direct sunlight and reducing eye strain. Canopy tilts up and down to accommodate operator’s size. Optional cooling fan and LED light kit increase operator comfort and visibility.

Control the discharge of the mower deck to avoid putting clippings in flower beds and on sidewalks

Smooth tread, 13x6.50x6 tail wheel. Performs like a pneumatic tire, but without the inconvenience and downtime associated with flats. Also available for 72-inch deck wheels. Not for use with PowerVac Collection Systems.

Dedicated, extra deep rear-discharge decks deliver revolutionary performance for applications where keeping clippings off sidewalks, driveways and parking lots is critical.

"My first zero turn mower, WOW, I didn't know what I was missing! I cut my mowing time in half and my lawn looks awesome! The Power Vac Collection System did a great job on the fall leaves and was a huge time saver, I did not even have to leave my seat! The power fold deck makes maintenance a breeze. The mower is comfortable to ride and easy to maneuver around trees as well as under bushes and fences. Clean up is a piece of cake, no awkward maneuvers to clean the deck or change the blades. I look forward to mowing the lawn every time. My wife even enjoys mowing the lawn too! This mower has been a huge blessing it's given me more time to spend with my wife, children and grandchildren. Thank you Grasshopper! "

— Steven W, Springfield, MO


"I was very sick in 2011. I was in the hospital from Oct. 31 2011 to March 7, 2012. When i came home I could no longer walk. With the help of a lot of therapy I got strong enough to walk again, but my feet are still numb and I have a lot of back pain. I could no longer use my old lawn mower. I needed a lawn mower I could drive with my hands and that I could raise the mower deck with out straing my back, The [Grasshopper] lawn mower fit my every need. The easist lawn mower to mow with made on the market today."

— Jim T, Lost Creek, WV