You're in control with our Hydro walk-behinds.
Choose the SoftGrip™ pistol grip or our patented
Z-Control™ for zero-turn control.
Stay out in front with improved clipping dispersal from the Extreme Discharge System and DuraDeck. Delivers a high quality of cut when you side discharge, mulch or bag. Equipped with a new molded rubber discharge chute for superior clipping dispersal. BOB-CAT® keeps you moving forward.
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.
Financing Options

Customer Testimonial

BOB-CAT Customer Testimonials
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, MI

Customer Testimonial

BOB-CAT Customer Testimonials
I like the basic design, ease
of repair and maintenance. I had several BOB-CATs over the last 10 years. All have been good to me."

John A
MAS Horticulture
Milan, MI

Customer Testimonial

BOB-CAT Customer Testimonials
I've purchased competitive
brands, but I always find myself coming back to BOB-CAT. "

Dave S
Green Guys
Ann Arbor, MI

Free Demo and Bob-Cat Info Best Warranty

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

Bob-Cat Hydro Drive Walkbehind Mower with Z-ControlOut 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.

Read more

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

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.]

Download PDF File 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"

Jumbo Grass Catcher/Metal Easy Dump

Jumbo Grass Catcher/Metal Easy Dump

4.3 cu. ft. capacity.

GC Poly Dump

GC Poly Dump

Available in 3.75 bu. or 5.0 bu capacity.

Mulching Baffle Kit w/ Eliminator Blades

Mulch Baffle Kit

32", 36", 48", 54" Decks

Full mulch baffle kit for full-time grass and leaf mulching. Includes Eliminator mulching blades.

ECO Plate

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.

Hydro Cold Start

Hydro Cold Start

Hydro declutching system for easier starting.

Weight Kit

Front Weight Kit

36", 48", 54" Decks

For 36", 48", and 54" decks.

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