Toro SS4225 74721

The Toro SS4225 74721 is a tractor produced by Toro Lawn Tractors. It is equipped with a 724 cc 44.2 ci engine. The listed engine power is Gasoline (gross): 22 hp / 16.4 kW. Transmission: Hydro-Gear ZT-2100.

Engine Power

Gasoline (gross): 22 hp / 16.4 kW

Fuel & Capacities

3 gal 11.4 L

Transmission

Hydro-Gear ZT-2100

Overview

	2015 TimeCutter SS SeriesZero-turn mower TimeCutter SS Series Zero-turn mower

Production
Manufacturer	Toro
Zero-turn mower
Original price was $2,799 in 2015

Toro SS4225 Engine
22HP Kohler 724cc 2-cyl gasoline
Fuel tank	3 gal 11.4 L
Engine details ...

Toro SS4225 Transmission
hydrostatic
Transmission details ...

Mechanical
Two-wheel drive
Power steering
open operator station

Power Take-off (PTO)
Mid PTO	independent
Clutch	electric

Dimensions & Tires
Front tire	11x4
Rear tire	18x7.5
Full dimensions and tires ...

Electrical
Ground	negative
Battery volts	12

Engine

Engine Detail — 724 cc / 44.2 ci Gasoline

Manufacturer	Kohler KT725
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled vertical-shaft V-Twin
Displacement	724 cc 44.2 ci
Bore/Stroke	3.27x2.64 inches 83 x 67 mm
Power (gross)	22 hp 16.4 kW
Starter	electric
Starter volts	12
Oil capacity	2 qts 1.9 L
Sparkplug	Champion RJ12YC
Sparkplug gap	0.030 inches 0.762 mm

Transmission

Transmission — Hydro-Gear ZT-2100

Transmission	Hydro-Gear ZT-2100
Type	hydrostatic
Gears	infinite forward and reverse (3-range)

Dimensions

Toro SS4225 Tires
Lawn/turf front	11x4
Lawn/turf rear	18x7.5

Dimensions
Length	73.1 inches 185 cm
Height	40.3 inches 102 cm
Front axle	Casters

Attachments

42" Mower deck
Type	mid-mount Toro
	2-blade with manual lever lift
Cutting width	42 inches 106 cm
Overall width	53.8 inches 136 cm
Cut height	1.5 to 4.5 inch 3 to 11 cm

Recommended Implements & Sizing Guide

Engineering recommendations for Toro Lawn Tractors Toro SS4225 74721 based on its 22 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	1 to 2 Bottom (12")1 - 2 铧 (30 cm)	Light Duty	Ideal for garden plots and light sandy soil.
Rotary Cutter / MowerMowing & Clearing	4 ft (48 in)1.2 m	Light Duty	Pasture clipping and light brush under 1" diameter.
Rotary TillerSeedbed Prep	42 to 48 in105 - 120 cm	Light Duty	Covers compact tractor tire width.
Disc HarrowSecondary Tillage	5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片)	Light Duty	Small acreage soil break-up and secondary aeration.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Toro Lawn Tractors Toro SS4225 74721.

Estimated Continuous Field Runtime: 2.6 hrs

Approximately 2.6 hours of continuous field operation at ~75% rated power on a full tank (3 gal / 11.4 L).

Estimated 75% Load Fuel Burn~1.1 gal/hr (4.3 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours

Toro Lawn Tractors Toro SS4225 74721 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Toro Lawn Tractors Toro SS4225 74721.

Enter value:

Unit:

Converted Equivalents:

Horsepower (HP)22 hp

Kilowatts (kW)16.4 kW

Metric Horsepower (PS / CV)22.3 PS

Direct Competitor Comparison

Compare Toro SS4225 74721 against same-era industry alternatives in the same horsepower class.

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