The IS5100Z series of full-sized zero-turn mowers features an impressive complement of comfort, performance and convenience. It features easier service access, more horsepower, improved operator comfort and increased performance, all contributing to lower cost of ownership. We've upgraded our industry-exclusive suspension and Roll Over Protection System (ROPS) as a standard feature. When it comes to commercial lawnmowers, this is truly the ultimate riding and cutting machine.
Adjustable, Anit-Scalp Rollers
Adjustable, anti-scalp rollers rotate 360° allowing for tight turns and less chance of drag marks and scalping.
33.5-hp CATTM Diesel
1500cc, 33.5-hp CaterpillarTM (model 3013C) diesel engine is the best in its class. 6,000 hours expected engine life, legendary reliability.
Dual Suspension
Dual coil-over-shock rear suspension allows you to cut rougher ground faster with a consistent cut.
Rear Discharge Deck 
Rear-discharge decks, used for special applications, are available in 61" or 72" cutting widths and disperse grass clippings directly behindthe mower.
Hercules™ Spindles 
Hercules™ cast-iron mower spindles with oversized 1 1⁄4" tapered roller bearings, 1 1⁄4" shaft and 10 1⁄4" 6-bolt flange design. Lasts longer, adds strength to the deck and requires minimal maintenance.
¼" Frame Rails 
Ferris frames are an industry leading 1⁄4" thick. Competitive fixed frame units use thinner 1/8" walls. Double A-belt & Cast Iron PulleysHeavy-duty banded double A-belt & cast iron pulleys handle load capacity better than the competition.Our double A-belt is less stresses than a traditional single belt configuration.
Gas Gauges 
Gas gauges are easy to view from operator compartment.
Flip Up Seat and Seat Pan
The seat and seat pan flip up to gain access for easy serviceability.
5/8" Hoses 
The 5/8" hoses to the hydro pumps, reservoir & filter provide consistent supply and flow. This results in a more reliable system and less "jerkiness".
Elevated Hydro Reservoir 
The elevated hydro reservoir allows for better draw.
1 Qt. Hydro Filter 
Larger surface area for better filtration.
Wrapped High-Pressure Hoses 
All high-pressure hoses are wrapped with industrial material so if there is a piercing it will contain fluid to protect operator.
3/8" Solid Center Wheel
We use strong wheels for less chance of stress cracks.
High Strength Marine Grade Plated Hardware
ASM rated for severe conditions, provides corrosion resistance.
Tapered Wheel Bearings
Tapered wheel bearings in castor wheels and mounts keep a longer life than bushings.
Greasable Bearings
Greasable bearings at all 4 pivot points of deck lift mechanism make for easy serviceability.
Pillow Block Bearing On Control Mount
The pillow block bearing on the control mount aids in smoother operation...competitors use bushings.
Cross Link Polyethylene Roto Molded Gas Tank
Cross link polyethylene roto molded gas tanks have nearly a ¼" wall thickness with a drop tube to prevent spillage.Our tanks are better than competitive blow molded tanks.
Debris Shields
Debris shields, at the base of control handles and sides of seat, keep debris away from getting under the seat & into machine.
Automotive Quality Paint
We use only automotive quality paint, the best paint in the industry.
Heavy-duty Wiring
We use heavy duty 10, 12 & 14 gauge wiring, stronger than most competitors. We wrap it for protection, fit & finish.
Covered Fuse Block
The covered fuse block is protected from the elements and is located for easy accessibility.
Viton Seals
Viton seals on gas tank output hoses are the best quality and are longer lasting.
Top Mounted Fuel Pickups
Top mounted fuel pickups deliver easier serviceability, less spillage if line leaks, won't draw dirt from bottom of tank.
1" x 1/2" Leading Edge of Deck 
The 1" x ½" leading edge of the deck adds an extra layer of deck protection.
Rubber Torsion Mounted A-Frame
Rubber torsion mounted A frame contributes to a trouble free smooth ride.
Extreme Heavy-Duty Bumper
The extreme heavy-duty bumper protects the mower and especially the engine.
OrderingReplacement Belts & Blades Made Easy
A belt and blade part number stickeris located under seat.When replacementsare needed, simply tell your Ferris dealerthe part numbers you need to order.
ENGINE GROUP
• 33.5-hp CaterpillarTM diesel engine. 55 ft/lbs of torque at 2800 rpm delivers more torque at a
lower rpm for increased power when needed.
• Two-stage industrial air-cleaner.
• Rugged twin 7.5-gallon fuel tanks (15-gallons total).
• Primary and secondary fuel filters for added longterm protection.
• Automotive style hood latch for easier service access.
MOWER DECK
• Available in 61" / 72" side or rear-discharge cutting widths.
• Cut height: 1.5"- 6" adjusts in 1/4" increments.
• HerculesTM cast-iron mower spindles.
• Adjustable, 360° anti-scalp rollers.
SUSPENSION / CHASSIS
• Patented four-wheel suspension system dramatically increases quality of cut over competitive
fixed frame units.
• Industry leading 1/4" thick tubular steel frame rails.
OPERATOR CONTROL & COMFORT SYSTEMS
• Expanded operator compartment includes ergonomic control panels featuring a cup-holder, cell
phone pocket, 12-volt outlet and storage compartment.
• Deluxe high back seat with added lumbar support.
• Folding Roll Over Protection System (ROPS) with retractable seat belt.
• Heavy duty integrated rear bumper for engine compartment protection.
• Environmentally-friendly sound package absorbs and reduces engine noises for improved
operator and bystander comfort.
