Toro Proline 620-Z

The Toro Proline 620-Z is a tractor produced by Toro Lawn Tractors. It is equipped with a 786 cc 48 ci engine. The listed engine power is Gasoline (listed): 20 hp / 14.9 kW. Transmission: Eaton 781. Operating weight: 720 lbs 326 kg.

Engine Power

Gasoline (listed): 20 hp / 14.9 kW

Fuel & Capacities

Gasoline

Transmission

Eaton 781

Operating Weight

720 lbs 326 kg

Overview

	1993 - 1995 Zero-turn mower

Production
Manufacturer	Toro
Zero-turn mower

Toro 620-Z Engine
20HP Onan 786cc 2-cyl gasoline
Engine details ...

Toro 620-Z Transmission
hydrostatic
Transmission details ...

Mechanical
Two-wheel drive
Power steering
Open operator station.

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

Dimensions & Tires
Wheelbase	42 inches 106 cm
Weight	720 lbs 326 kg
Front tire	11x4.00-5
Rear tire	18x9.50-8
Full dimensions and tires ...

Electrical
Ground	negative
Battery CCA	280
Battery volts	12

Engine

Engine Detail — 786 cc / 48 ci Gasoline

Manufacturer	Onan P220V
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled vertical-shaft opposed-twin
Displacement	786 cc 48 ci
Bore/Stroke	3.25x2.875 inches 83 x 73 mm
Power	20 hp 14.9 kW
Starter	electric
Starter volts	12

Toro 620-Z Engine

Transmission

Transmission — Eaton 781

Transmission	Eaton 781
Type	hydrostatic
Gears	infinite forward and reverse

Dimensions

Toro 620-Z Tires
Lawn/turf front	11x4.00-5
Lawn/turf rear	18x9.50-8

Dimensions
Wheelbase	42 inches 106 cm
Length	71.9 inches 182 cm
Width	40 inches 101 cm
Height	41.2 inches 104 cm
Weight	720 lbs 326 kg

Attachments

Attachment overview
38" mid-mount mower deck
42" mid-mount mower deck
52" mid-mount mower deck

Photos

Toro Proline 620-Z tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Toro Lawn Tractors Toro Proline 620-Z based on its 20 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 Proline 620-Z.

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 Proline 620-Z Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Toro Lawn Tractors Toro Proline 620-Z.

Enter value:

Unit:

Converted Equivalents:

Horsepower (HP)20 hp

Kilowatts (kW)14.9 kW

Metric Horsepower (PS / CV)20.3 PS

Direct Competitor Comparison

Compare Toro Proline 620-Z against same-era industry alternatives in the same horsepower class.

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