Take a big step forward in value, control, and productivity with the BOB-CAT® hydrostatic drive mid-size walk behind mower. Choose our patented Z-Control™ for zero-turn maneuverability or the Softgrip™ pistol grip. Both are comfortable and easy to use with less operator fatigue. You'll benefit from all-day comfort and proven performance. They're the mid-size walk-behinds that will keep you out in front.
Extreme Discharge System with DuraDeck™ Sets the Standard
Out in front with a great cut! The improved clipping dispersal from the Extreme Discharge System
and DuraDeck. delivers a high quality of cut when you side discharge, mulch or bag. The Extreme Discharge system allows you to produce a world-class cut on all types of turf. Providing improved clipping
dispersal and preventing scalping and damage to turf, the DuraDeck™ helps you take charge and get the job done right. Equipped with a new resilient molded rubber discharge chute for improved clipping
dispersal,
BOB-CAT® keeps you moving forward.
Easier Maintenance and Lower Cost
Single-belt routing on the BOB-CAT® Hydro mid-size walk-behind means a longer belt life; and lower maintenance costs equal more productivity with more uptime. Fewer service points, maintenance-free heavy duty spindles and wheel bearings, long-life belts, heavy duty electric clutch and offset cutter blades keeps you moving forward.
Easy Handling & Control
BOB-CAT® Hydro with pistol grips and Hydro with Z-Control™ walk behind mowers offer comfortable controls to minimize operator fatigue. The Hydro features SoftGrip™ controls for continuous mowing with minimal effort. The Hydro with Z-Control™ provides smooth zero-turn maneuverability with ergonomically designed levers, an easy-to-use speed control bar and a reverse assist bar. Dual hydraulic pumps and wheel motor offer ultimate control and boost productivity.
Peak Productivity
Take a big step forward in value and performance with these flexible mid-size walk-behinds in your choice of 36", 48" and 54" deck sizes. Powered with reliable Kawasaki® FS Series engines in electric or recoil start. The low positioning of the aluminized steel horizontal muffler allows you to easily maneuver under shrubs and bushes, resulting in a clean cut every time. All this plus our NEW flat-free caster wheels deliver the mower you need for maximum uptime. Optional grass catchers integrate without chute removal. All deck sizes are available with mulching kits to extend the versatility of your mid-size walk-behind mower.
Peace of Mind with Industry Best Warranties
- Backed by a 2-year commercial limited warranty
Click here for warranty details or visit your local dealer.
Extreme Discharge System with DuraDeck™
- Extreme Discharge System for superior clipping dispersal
- Resilient molded rubber chute to resist hard knocks
Durability
- 7-gauge formed, welded and reinforced construction on 36 and 48-inch deck models
- Double 10-gauge steel top on the 54-inch model
- Deep-sheave split steel pulleys eliminate belt guides and adjustments
Easier Maintenance and Lower Cost
- Single-belt routing for longer belt life
- Fewer service points for maximum uptime
- Maintenance-free heavy duty spindles and wheel bearings
- Long-life belts, heavy duty electric clutch and offset cutter blades to keep you moving forward
Easy Handling with Z-Control™
- Ergonomically designed levers
- Easy-to-use speed control bar
- Reverse assist bar
- Zero-turn maneuverability
Pistol Grip Control Features
- SoftGrip™ fingertip controls featured on the Hydro
Peak Productivity
- 10cc pumps generate ground speeds up to 6 mph
- Choice of 36, 48 or 54-inch deck size for maximum cutting coveragee
- Larger fuel tank leads to fewer stops for refueling and increased uptime
- Zero-turn functionality with Z-Control™ allows for easy maneuvering around landscape obstacles
- 2011 EPA compliant fuel system with five-gallon capacity
- NEW flat-free caster wheels maximize uptime
Peace of Mind
- Commercial two-year warranty
- Click here for warranty details or visit your local dealer.
Model Number |
Description |
Engine Make |
HP/Displacement |
933305G |
Hydro 16HP KAW FS 36 SD |
Kawasaki FS481V |
16 HP/603 cc [36.8 cu. in.] |
933307G |
Hydro 18HP KAW ES FS 36 SD |
Kawasaki FS541V |
18 HP/603 cc [36.8 cu. in.] |
934306G |
Hydro 18HP KAW FS 48 SD |
Kawasaki FS541V |
18 HP/603 cc [36.8 cu. in.] |
934307G |
Hydro 18HP KAW ES FS 48 SD |
Kawasaki FS541V |
18 HP/603 cc [36.8 cu. in.] |
935308G |
Hydro 20HP KAW FS 54 SD |
Kawasaki FS600V |
20 HP/603 cc [36.8 cu. in.] |
935309G |
Hydro 20HP KAW ES FS 54 SD |
Kawasaki FS600V |
20 HP/603 cc [36.8 cu. in.] |
933331G |
Hydro Z-Cont 16HP KAW FS 36 SD |
Kawasaki FS481V |
16 HP/603 cc [36.8 cu. in.] |
934332G |
Hydro Z-Cont 18HP KAW FS 48 SD |
Kawasaki FS541V |
18 HP/603 cc [36.8 cu. in.] |
935333G |
Hydro Z-Cont 20HP KAW FS 54 SD |
Kawasaki FS600VI |
20 HP/603 cc [36.8 cu. in.] |
BOB-CAT Hydro Mower Spec Sheet
Deck
Model |
Deck Size |
Blade Tip Speed |
Blades |
Hydro 16HP KAW FS 36 SD |
36" |
16,964 fpm @ 3600 engine rpm |
2 - 18" High Lift Offset .197" thick |
Hydro 18HP KAW ES FS 36 SD |
36" |
16,964 fpm @ 3600 engine rpm |
2 - 18" High Lift Offset .197" thick |
Hydro 18HP KAW FS 48 SD |
48" |
15,315 fpm @ 3600 engine rpm |
3 -16.25" High Lift Offset .197" thick |
Hydro 18HP KAW ES FS 48 SD |
48" |
15,315 fpm @ 3600 engine rpm |
3 - 16.25" High Lift Offset .197" thick |
Hydro 20HP KAW FS 54 SD |
54" |
16,964 fpm @ 3600 engine rpm |
3 - 18" High Lift Offset .197" thick |
Hydro 20HP KAW ES FS 54 SD |
54" |
16,964 fpm @ 3600 engine rpm |
3 - 18" High Lift Offset .197" thick |
Hydro Z-Cont 16HP KAW FS 36 SD |
36" |
16,964 fpm @ 3600 engine rpm |
2 - 18" High Lift Offset .197" thick |
Hydro Z-Cont 18HP KAW FS 48 SD |
48" |
15,315 fpm @ 3600 engine rpm |
3 - 16.25" High Lift Offset .197" thick |
Hydro Z-Cont 20HP KAW FS 54 SD |
54" |
16,964 fpm @ 3600 engine rpm |
3 - 18" High Lift Offset .197" thick |
Deck Design: 32" and 48" Decks: DuraDeck™ side discharge with fabricated 7-gauge top plus reinforcements of
10-gauge, 7-gauge, and 3-gauge.
Deck Design: 54" Decks: DuraDeck™ side discharge with two layers of fabricated formed and welded 10-gauge plus reinforcements of 10-gauge, 7-gauge, and 3-gauge.
Deck Skirts: 7-gauge Skirts
Spindle Type: Maintenance Free w/1" Shaft
Bearings: Double-Sealed, Precision Ground Ball Bearings
Cutting Height: Adjust from 1 3/8 inch to 4 5/8 inch
Discharge: Durable molded rubber chute resists hard knocks to keep you moving forward.
Deck Drive: Warner Mag Stop 125 ft. lb. electric clutch
Drive
Ground Speed: 6 mph
Transmission: Twin Hydro-Gear Variable Displacement Pumps with Oil Cooler and Parker Wheel Motors
Pump Size: Hydro-Gear™ 10cc
Tires
Front Tires |
9 x 3.50-4 No-Flat |
Rear Tires |
16 x 7.50-8 4-ply |
Brake |
Drum Type |
Fuel
Fuel Capacity |
5 Gallons |
Size
Model |
Machine Weight/ Wet |
Hydrostatic 16 HP 36" |
528 lbs |
Hydrostatic 18 HP 36" |
528 lbs |
Hydrostatic 18 HP 48" |
582 lbs |
Hydrostatic 18 HP 48" |
582 lbs |
Hydrostatic 20 HP 54" |
593 lbs |
Hydrostatic 20 HP 54" |
593 lbs |
Hydrostatic Z-Control 16 HP 36" |
524 lbs |
Hydrostatic Z-Control 18 HP 48" |
596 lbs |
Hydrostatic Z-Control 20 HP 54" |
605 lbs |
Machine Length: 78"
Machine Height: 40.3"
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Jumbo Grass Catcher/Metal Easy Dump4.3 cu. ft. capacity. |
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GC Poly DumpAvailable in 3.75 bu. or 5.0 bu capacity. |
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Mulch Baffle Kit32", 36", 48", 54" Decks Full mulch baffle kit for full-time grass and leaf mulching. Includes Eliminator mulching blades. |
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ECO PlateAn easy way to mulch. A simple mulching plate easily attaches without tools, allowing mulch capabilities in a matter of seconds. Excellent for debris control around landscape beds, along sidewalks and roads. |
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Hydro Cold StartHydro declutching system for easier starting. |
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Front Weight Kit36", 48", 54" Decks For 36", 48", and 54" decks. |
What's New






