
Hydro
YOU'RE IN CONTROL WITH OUR HYDRO-DRIVE WALK-BEHIND MID-SIZE MOWERS.
Take a big step forward in value, control, and productivity. Pick the SoftGrip™ pistol grip or our patented Z-Control™ for zero-turn comfort. You're in control with our Hydro walk-behinds.
"I own the BOB-CAT 52" Walk-behind and love it! I want to stay with the machine that works for me."
- Brandon B - Infinitely Green Landscapes, Canton, MIOverview
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 limited warranty
- Click here for warranty details or visit your local dealer.
Product Specs
Compare This| Model | Description | Engine Make | Displacement |
| 933305G | Hydrostatic 36" SD | Kawasaki FS481V | 603 cc [36.8 cu. in.] |
| 934306G | Hydrostatic 48" SD | Kawasaki FS541V | 603 cc [36.8 cu. in.] |
| 935308G | Hydrostatic 54" SD | Kawasaki FS600V | 603 cc [36.8 cu. in.] |
| 933307G | Hydrostatic Electric Start 36" SD | Kawasaki FS541V | 603 cc [36.8 cu. in.] |
| 934307G | Hydrostatic Electric Start 48" SD | Kawasaki FS541V | 603 cc [36.8 cu. in.] |
| 934332G | Hydrostatic Z-Control 48" SD | Kawasaki FS541V | 603 cc [36.8 cu. in.] |
| 935333G | Hydrostatic Z-Control 54" SD | Kawasaki FS600VI | 603 cc [36.8 cu. in.] |
| Model | Deck Size | Blade Tip Speed | Blades |
| Hydrostatic 36" SD | 36" | 16,964 fpm | 2 - 18" High Lift Offset .197" thick |
| Hydrostatic 48" SD | 48" | 15,315 fpm | 3 -16.25" High Lift Offset .197" thick |
| Hydrostatic 54" SD | 54" | 16,964 fpm | 3 - 18" High Lift Offset .197" thick |
| Hydrostatic Electric Start 36" SD | 36" | 16,964 fpm | 2 - 18" High Lift Offset .197" thick |
| Hydrostatic Electric Start 48" SD | 48" | 15,315 fpm | 3 - 16.25" High Lift Offset .197" thick |
| Hydrostatic Z-Control 48" SD | 48" | 15,315 fpm | 3 - 16.25" High Lift Offset .197" thick |
| Hydrostatic Z-Control 54" SD | 54" | 16,964 fpm | 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
| Model | Ground Speed |
| Hydrostatic 36" SD | 6 mph |
| Hydrostatic 48" SD | 6 mph |
| Hydrostatic 54" SD | 6 mph |
| Hydrostatic Electric Start 36" SD | 6 mph |
| Hydrostatic Electric Start 48" SD | 6 mph |
| Hydrostatic Z-Control 48" SD | 6 mph |
| Hydrostatic Z-Control 54" SD | 6 mph |
Transmission: Twin Hydro-Gear Variable Displacement Pumps with Oil Cooler and Parker Wheel Motors
Pump Size: Hydro-Gear™ 10cc
| Model | Front Tires | Rear Tires | Brake |
| Hydrostatic 36" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
| Hydrostatic 48" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
| Hydrostatic 54" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
| Hydrostatic Electric Start 36" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
| Hydrostatic Electric Start 48" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
| Hydrostatic Z-Control 48" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
| Hydrostatic Z-Control 54" SD | 9 x 3.50-4 No-Flat | 16 x 7.50-8 4-ply | Drum Type |
Parking Brake: Dual Wheel
Fuel Capacity 5 Gallons
| Model | Machine Weight/ Wet | Machine Length | Machine Height |
| Hydrostatic 36" SD | 528 lbs | 78" | 40.3" |
| Hydrostatic 48" SD | 582 lbs | 78" | 40.3" |
| Hydrostatic 54" SD | 593 lbs | 78" | 40.3" |
| Hydrostatic Electric Start 36" SD | 528 lbs | 78" | 40.3" |
| Hydrostatic Electric Start 48" SD | 582 lbs | 78" | 40.3" |
| Hydrostatic Z-Control 48" SD | 596 lbs | 78" | 40.3" |
| Hydrostatic Z-Control 54" SD | 605 lbs | 78" | 40.3" |


360 / Zoom and Features
Click on the Features or 360/Zoom Tabs to ExploreAccessories
Click on an image to view the detailsMulch Baffle Kit
Full mulch baffle kit for full-time grass and leaf mulching. Includes Eliminator mulching blades.
| Available on these Zero Turn deck sizes: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 32" | 36" | 42" | 48" | 52" | 54" | 61" | 61"RD | 72" | |
| Predator-Pro | ■ | ||||||||
| Predator-Pro LP | ■ | ■ | |||||||
| ProCat | ■ | ■ | ■ | ||||||
| ProCat SE | ■ | ■ | ■ | ||||||
| FastCat Pro | ■ | ■ | ■ | ■ | ■ | ||||
| FastCat Pro SE | ■ | ■ | ■ | ■ | ■ | ||||
| FastCat RZ | ■ | ■ | ■ | ||||||
| CRZ | ■ | ■ | ■ | ||||||
| Available on these Walk Behind deck sizes: | |||||||||
| Gear-Drive Classic Pro | ■ | ■ | ■ | ||||||
| Hydro | ■ | ■ | ■ | ||||||
Jumbo Grass Catcher/Metal Easy Dump
4.3 cu. ft. capacity.
| Available on these Zero Turn deck sizes: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 32" | 36" | 42" | 48" | 52" | 54" | 61" | 61"RD | 72" | |
| Predator-Pro | |||||||||
| Predator-Pro LP | |||||||||
| ProCat | |||||||||
| ProCat SE | |||||||||
| FastCat Pro | |||||||||
| FastCat Pro SE | |||||||||
| FastCat RZ | |||||||||
| CRZ | |||||||||
| Available on these Walk Behind deck sizes: | |||||||||
| Gear-Drive Classic Pro | ■ | ■ | ■ | ||||||
| Hydro | ■ | ■ | ■ | ||||||
Hydro Cold Start
Hydro declutching system for easier starting.
| Available on these Zero Turn deck sizes: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 32" | 36" | 42" | 48" | 52" | 54" | 61" | 61"RD | 72" | |
| Predator-Pro | |||||||||
| Predator-Pro LP | |||||||||
| ProCat | |||||||||
| ProCat SE | |||||||||
| FastCat Pro | |||||||||
| FastCat Pro SE | |||||||||
| FastCat RZ | |||||||||
| CRZ | |||||||||
| Available on these Walk Behind deck sizes: | |||||||||
| Gear-Drive Classic Pro | |||||||||
| Hydro | ■ | ■ | ■ | ||||||
GC Poly Dump
Comes in 3.75 and 5.0 bushel models.
| Available on these Zero Turn deck sizes: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 32" | 36" | 42" | 48" | 52" | 54" | 61" | 61"RD | 72" | |
| Predator-Pro | |||||||||
| Predator-Pro LP | |||||||||
| ProCat | |||||||||
| ProCat SE | |||||||||
| FastCat Pro | ■ | ■ | ■ | ■ | ■ | ||||
| FastCat Pro SE | |||||||||
| FastCat RZ | ■ | ■ | ■ | ||||||
| CRZ | ■ | ■ | ■ | ||||||
| Available on these Walk Behind deck sizes: | |||||||||
| Gear-Drive Classic Pro | ■ | ■ | ■ | ||||||
| Hydro | ■ | ■ | ■ | ||||||
Front Weight Kit
| Available on these Zero Turn deck sizes: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 32" | 36" | 42" | 48" | 52" | 54" | 61" | 61"RD | 72" | |
| Predator-Pro | |||||||||
| Predator-Pro LP | |||||||||
| ProCat | |||||||||
| ProCat SE | |||||||||
| FastCat Pro | |||||||||
| FastCat Pro SE | |||||||||
| FastCat RZ | |||||||||
| CRZ | |||||||||
| Available on these Walk Behind deck sizes: | |||||||||
| Gear-Drive Classic Pro | |||||||||
| Hydro | ■ | ■ | ■ | ||||||
ECO Plate
An 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.
| Available on these Zero Turn deck sizes: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 32" | 36" | 42" | 48" | 52" | 54" | 61" | 61"RD | 72" | |
| Predator-Pro | ■ | ||||||||
| Predator-Pro LP | ■ | ■ | |||||||
| ProCat | ■ | ■ | ■ | ||||||
| ProCat SE | ■ | ■ | ■ | ||||||
| FastCat Pro | ■ | ■ | ■ | ■ | |||||
| FastCat Pro SE | |||||||||
| FastCat RZ | ■ | ■ | ■ | ||||||
| CRZ | ■ | ■ | ■ | ||||||
| Available on these Walk Behind deck sizes: | |||||||||
| Gear-Drive Classic Pro | ■ | ■ | ■ | ||||||
| Hydro | ■ | ■ | ■ | ||||||
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