Standard Features


Power, Traction, and Versatility. F-series front-mount mowers are engineered for a wide range of commercial and residential applications. Featuring an abundance of horsepower, four-wheel drive traction, fabricated mower decks, and many implement options for year-round use.


Model Year
F3680 (4WD)
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96.5 in. (2,450 mm)
78.2 in. (1,985 mm)
53.9 in. (1,370 mm)
1,687 lbs. (765 kg)
51.2 in. (1,300 mm)
Ground Clearance
7.4 in. (188 mm)
Mowing Width
60 or 72 in. (1,520 or 1,826 mm)
Mowing Height Range
1 - 5 in. (25 - 127 mm) in 1/4 in. (6.4 mm) increments
Fuel Tank Capacity
16.1 gal. (61 l)


Engine Make
Engine Model
Fuel Type
36 hp maximum
91.4 ci (1,498 cc)
Air Cleaner
Dual element


Hydrostatic (HST)
Number of Speeds
2 forward / 2 reverse
Travel Speed
Forward: 0 - 12.5 mph (0 - 20 km/h)
Reverse: 0 - 6.8 mph (0 - 11 km/h)
Front Tire: 24 x 12 - 12
Rear Tire: 18 x 9.5 - 8
Wet discs


Seat Adjustment
Deluxe seat with 4 adjustable controls (weight, lumbar, back angle, arm rests)


Hydrostatic power steering / tilt wheel


Deck Construction
Pan: Welded
Thickness: 0.18 in. (4.5 mm)
Depth: 5.5 in. (140 mm)
Deck Lift
Hydraulic, 2-point hitch

Standard Features

Single HST Pedal
 A powerful hydrostatic transmission provides quick response, excellent working speed, and muscle for tough mowing jobs. The single pedal design lets you easily change the direction as well as control the speed (12.5 miles per hour maximum forward speed, 6.8 miles per hour in reverse), keeping your hands free for steering and implement control for increased productivity.  
Hi Pro 3 Standard Cut 1 (Standard)
 In Standard Cut 1 mode, the rugged deck is ideal for fast mowing, even through tall grass.  Two sizes are available, 60 and 72-inch, for different mowing applications.  Both feature side discharge, quick coupling, and easy maintenance.  
5.5-Inch Deep Mower Deck
 Tall grass is no problem for this side-discharge professional mower deck.  Its 5.5-inch deep deck design lets tall grass stand up so that it can be cut more efficiently.  The result?  A faster cut and a cleaner appearance.  
Fabricated Deck With 7-Gauge Steel Construction
 Stronger and more durable than conventional pressed steel decks, the F-Series' fabricated steel deck is designed to provide years of reliable cutting performance with minimal maintenance.  
Swivel Anti-Scalp Wheels
 The mower deck is equipped up front with two large wheels that swivel independently through 360 degrees.  The wheels ensure that the deck remains above the turf, preventing unsightly turf damage.  
PTO Shaft Drive
 Shaft drive means no belts or pulleys, just smooth and direct power transfer from the engine to the deck and other PTO-driven attachments.  Shaft drive also requires less maintenance and provides greater dependability.  
Multi-V-Belt / Steel Pulleys
 In addition to providing greater wear resistance, the heavy-duty cast-iron pulleys and a multi-V-belt drive system effectively distribute and reduce tension while transmitting power to the mower blades.  The multi-V-belt won't twist or slip, thus reducing the chance of damage to the mower.  You get more performance and power, and fewer problems.  
Superior Lifting Capacity
 The F-Series lifting capacity offers it the versatility to handle an array of implements, including a grass catcher, snow blower, rotary sweeper, debris blower and utility blade.  
Large Capacity Fuel Tank
 A large, 16.1-gallon fuel tank not only keeps you working longer between fuel stops, it also reduces the number of fueling stops needed to complete long jobs.  That means more time working and less time fueling up.  The refueling pipe is conveniently located right behind the ROPS.  
4WD & Auto-Assist 4WD (4WD Models Only)
 Auto-Assist 4WD works in forward and reverse, automatically controlling the drive loads on the wheels during turns.  Auto-Assist 4WD lets you turn with greater efficiency and ease with less wear and tear on the turf. Full-time 4WD can also be engaged.  
Halogen Headlight
 The bright halogen headlight throws more light onto the work area, letting you work with greater efficiency and speed in low-light and nighttime situations.  An optional working light is also available.  
Large Tires With Wide Tread
 The four tires provide excellent stability and maneuverability on slopes, high flotation and minimal ground compaction.  
Kubota Diesel Engines
 Powerful Kubota diesel engines mean faster, more efficient job performance.  These F-Series diesel engines have power to spare.  Their high torque rise ensures faster, smoother recovery under sudden loading, letting you power through tall or wet grass without skipping a beat.  They're also environmentally and economically friendly, thanks to their enhanced combustion efficiency, low vibration and noise levels, and reduced fuel costs.  
Hydrostatic Power Steering
 Hydrostatic power steering reduces operator fatigue and makes it easier to mow around trees and other obstacles.  
Dual-Element Air Cleaner
 The dual-element air cleaner helps keep the engine running smoothly and efficiently.  Only the outer filter needs to be replaced - the inner filter can be cleaned with a blower - helping to reduce maintenance costs. The F3680 air cleaner is equipped with a choke indicator that turns red when the filter needs cleaning or replacement.  
Integrated Radiator Screen
 The easy to clean radiator screen is integrated into the engine cover to help keep the engine running cool and efficiently.  A water gauge and overheat alarm are standard equipment to prevent damage should an incident occur.  
Fuel Gauge
 No more guessing how much fuel remains in the tank.  A dash-mounted fuel gauge makes fuel level monitoring simple, with a quick glance at the front panel.  
Tool Box
 Conveniently located under the seat, the tool box provides fast-access storage for your tools.  It's also an ideal place to store your operator manual for quick and easy reference while on the job.  
90-Degree Tilt Mower Deck
 The mower deck tilts to a full 90 degrees, providing unobstructed access to the blades and deck underside for easier cleaning and maintenance.  
Deluxe Seat
 The F-Series' high level of comfort starts with a deluxe high-back seat with four separate adjustments - weight control, lumbar support, back angle, and arm rests - to provide every operator with a custom fit and optimum comfort.  
Operator Levers
 For easier operation and greater convenience, the high / low speed lever, deck lifting lever, and PTO engagement lever are ergonomic in height and located to the side of the operator.  The lever guides have also been designed for quick, at-a-glance identification.  


 Hi Pro 3 Fine Cut 2 (With Optional ZD Pro Style Front Baffle Kit)
 The optional front baffle kit installs in minutes with simple tools, converting the standard deck into an efficient side-discharge deck, resulting in a finer cut with smaller clippings.  
 Hi Pro 3 Mulching Cut 3 (With Optional Mulching Kit)
 The professional mulching kit converts the standard deck into a high-precision mulching deck that produces an even finer mulch and sends it straight back into the turf.  
 Rear Discharge Mower
 When side discharge won't do, mount an optional rear discharge mower deck. Two sizes, 60 and 72-inch, are available. Both decks tilt up 90 degrees for easier cleaning and blade sharpening. They also feature seven-gauge steel construction for greater durability and front lift arms that attach directly over the center of gravity for better control. Mulching kits are also available.  
 Grass catcher  
 Rotary sweeper  
 Front blade  
 Snow blower  
 Debris blower  
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.