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IS® 3100Z Zero Turn Mowers

Maximum Power and Performance

The IS® 3100Z zero turn mower series includes a variety of premium performance, comfort, and convenience features that add even greater customer value to an already best-selling design. This commercial ZTR mower offers supreme quality and reliability, plus an extraordinary package of components and benefits. The IS® 3100Z features the innovative iCD™ Cutting System. One lap on this ZTR lawn mower and you will know… Ferris has made landscaping work easier again.

Product Ratings

IS 3100Z Zero Turn Mowers

ZTR Mower Model Engine Specs Mower Deck
IS3100ZBV3661 36 gross hp* Vanguard™ BIG BLOCK 61"
IS3100KAV2761 37 gross hp* Kawasaki™ FX1000V DFI 61"
IS3100ZBV3672 36 gross hp* Vanguard BIG BLOCK 72"
IS3100ZKAV3772 37 gross hp** Kawasaki® FX1000V DFI 72"

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Features
  • Patented Suspension

    Suspension system consists of rear coil-over-shocks with dual cast-iron maintenance-free suspension arms (shown) and front independent adjustable coil-over-shocks.

  • Powerful Engine

    Vanguard BIG BLOCK engine provides increased horsepower and more torque.

  • Air Cleaner

    Two-stage industrial remote air-cleaner extends engine service life.

  • iCD™ Cutting System

    The innovative iCD™ Cutting System allows for better airflow, discharge and superior cut quality.

  • Hercules Spindles

    Hercules™ cast-iron mower spindles utilizes large 1 1⁄4" Timken® tapered roller bearings, 1 1⁄4" shaft and 10 1⁄4" 6-bolt flange design. Long lasting, adds strength to the deck and requires minimal maintenance.

  • Cool running

    Fans mounted on hydro pumps assist in cooling and repeling debris.

  • Cut Height

    Foot-operated deck lift, with adjustable pedal, can change cut height in 1/4" increments from 1.5"- 5".

  • Enhanced Longevity

    Transmission oil cooler cools oil for enhanced transmission longevity.

  • Smooth Controls

    Pillow block bearings on control mounts makes for long lasting smooth, precision controls.

  • Easy Access

    Quick removal of the floor pan provides convenient access to the top of the deck for easy cleaning and service.

  • Acres Per Hour

    Mows up to 7.2 acres per hour, based on 80% efficiency.

  • Miles Per Hour

    Up to 12 MPH ground speed, reverse 6 MPH.

*All power levels are stated gross horsepower at 3600 rpm per SAEJ1940 as rated by Briggs & Stratton

**All power levels are stated gross horsepower at 3600 rpm per SAE J2723 as rated by Kawasaki

^Power levels rated by engine manufacturer.

IS® 3100Z Zero Turn Mowers

Specifications
MODELS IS3100ZBV3661 IS3100ZBV3672 IS3100ZKAV3761 IS3100ZKAV3772
SELECT MODELS Compare Compare Compare Compare
ENGINE
Engine Brand Vanguard™ BIG BLOCK™ Kawasaki® FX1000V DFI Kawasaki® FX1000V DFI Kawasaki® FX1000V DFI
Gross Horsepower 36 gross hp* 37 gross hp** 37 gross hp** 37 gross hp**
PTO Electric Electric Electric Electric
Cylinders 2, V-Twin 2, V-Twin 2, V-Twin 2, V-Twin
Starter Electric Electric Electric Electric
Fuel Tank Capacity 11 gal. 11 gal. 11 gal. 11 gal.
MOWER
Cutting Width (in.) 61" 61" 72" 72"
Cutting Height (in.) 1.5"- 5.0" 1.5"- 5.0" 1.5"- 5.0" 1.5"- 5.0"
Spindles Hercules™ Spindles Hercules™ Spindles Hercules™ Spindles Hercules™ Spindles
Deck Construction iCD™ Cutting System with striping kit iCD™ Cutting System with striping kit iCD™ Cutting System with striping kit iCD™ Cutting System with striping kit
SUSPENSION
Suspension Rear coil-over-shocks with dual cast-iron maintenance-free suspension arms and front independent adjustable coil-over-shocks Rear coil-over-shocks with dual cast-iron maintenance-free suspension arms and front independent adjustable shocks Rear coil-over-shocks with dual cast-iron maintenance-free suspension arms and front independent adjustable shocks Rear coil-over-shocks with dual cast-iron maintenance-free suspension arms and front independent adjustable shocks
DRIVE TRAIN
Transmission Dual hydro pumps and wheel motors with 8” cooling fans, transmission oil cooler Dual hydro pumps and wheel motors with 8” cooling fans, transmission oil cooler Dual hydro pumps and wheel motors with 8” cooling fans, transmission oil cooler Dual hydro pumps and wheel motors with 8” cooling fans, transmission oil cooler
Drive Axles 1.25" Tapered 1.25" Tapered 1.25" Tapered 1.25" Tapered
Castor Tires (in.) 13 x 6.5-6 13 x 6.5-6 13 x 6.5-6 13 x 6.5-6
GROUND SPEED
Speeds-rev. (mph) 0-6 0-6 0-6 0-6
Speeds-fwd. (mph) 0-12 0-12 0-12 0-12
Speeds-rev. (mph) 0-6 0-6 0-6 0-6
DIMENSIONS
Overall Length 81" 81" 81" 81"
Overall Width (in.) deflector down / deflector up (model) 77" / 63.5" 77" / 63.5" 88" / 74" 88" / 74"
Dry Weight (lbs.) 1325 1325 1400 1400
OPERATOR CONTROL & COMFORT SYSTEMS
Seat Package Premium adjustable seat Premium adjustable seat Premium adjustable seat Premium adjustable seat
Controls / Safety Group Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit. Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit. Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit. Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit.
Certified Roll-over Protection System Standard Standard Standard Standard
Instrumentation Hour meter Hour meter
Controls / Safety Group Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit. Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit. Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit. Seat activated engine ill, clutch safety switch, neutral and parking brake safety circuit.
Parking Brake / Safety Circuit Disk Disk Disk Disk
WARRANTY
Engine 3-Year Limited Manufacturer's Warranty 3-Year Limited Manufacturer's Warranty 3-Year Limited Manufacturer's Warranty 3-Year Limited Manufacturer's Warranty
Balance of Machine 4-Year Limited Warranty (48 months) or 500 hours, whichever occurs first. Unlimited hours during the first 2 years (24 months). Coil-over-shocks and all suspension related components are covered for 4 years (48 months) unlimited hours. Belts, Tires, Brake Pads, Battery, Blades: 90 days See Dealer for Warranty Details. 4-Year Limited Warranty (48 months) or 500 hours, whichever occurs first. Unlimited hours during the first 2 years (24 months). Coil-over-shocks and all suspension related components are covered for 4 years (48 months) unlimited hours. Belts, Tires, Brake Pads, Battery, Blades: 90 days See Dealer for Warranty Details. 4-Year Limited Warranty (48 months) or 500 hours, whichever occurs first. Unlimited hours during the first 2 years (24 months). Coil-over-shocks and all suspension related components are covered for 4 years (48 months) unlimited hours. Belts, Tires, Brake Pads, Battery, Blades: 90 days See Dealer for Warranty Details. 4-Year Limited Warranty (48 months) or 500 hours, whichever occurs first. Unlimited hours during the first 2 years (24 months). Coil-over-shocks and all suspension related components are covered for 4 years (48 months) unlimited hours. Belts, Tires, Brake Pads, Battery, Blades: 90 days See Dealer for Warranty Details.
*All power levels are stated gross horsepower at 3600 rpm per SAEJ1940 as rated by Briggs & Stratton

**All power levels are stated gross horsepower at 3600 rpm per SAE J2723 as rated by Kawasaki

^Power levels rated by engine manufacturer.

IS® 3100Z Zero Turn Mowers

Attachments
FAST-Vac Triple Bag Collection System

The triple bag collection system is simple to install. Each heavy-duty mesh bag has a rugged polyethylene underside with integrated handle to assist with removal. Available on 61" models.

FAST-VAC EZ DUMP COLLECTION SYSTEM

The EZ Dump™ increases productivity by giving the operator the ability to release clippings from their seat with the use of a toggle switch.

FAST- VAC EZ DUMP XL COLLECTION SYSTEM

The EZ Dump XL™ Collection System is ideal for larger jobs. Simply squeeze the handle and pull up to release the hopper right from your seat.

Mulch Kit

Select kits include dedicated mulching blades, baffels, hardware and instruction sheet.

TRAILER HITCH KIT

Will accept a 1/2” shank ball and comes complete with hardware.

LIGHT KIT

Select models are pre-wired for simple installation.

SUSPENSION SEAT

Suspension seat for optimal comfort.

SEAT INSERT

Add this to the premium adjustable seat for increased comfort.

Flat-Free Caster Tires

Run all day with no flats, eliminates down time.