Fortschritt ZT 303

The Fortschritt ZT 303 is a tractor produced by Fortschritt. It is equipped with a 400.3 ci 6.6 L engine. The listed engine power is Diesel (listed): 98.6 hp / 73.5 kW. Transmission: 9 forward and 6 reverse. Operating weight: 13,300 lbs 6032 kg.

Engine Power

Diesel (listed): 98.6 hp / 73.5 kW

Fuel & Capacities

33 gal 124.9 L

Transmission

9 forward and 6 reverse

Operating Weight

13,300 lbs 6032 kg

Overview

	1971 - 1984

Production
Manufacturer	Fortschritt
Built in Schönebeck, Saxony-Anhalt, Germany

Variants
ZT 300	2WD
ZT 304	industrial model

Fortschritt ZT 303 Engine
VEB 6.6L 4-cyl diesel
Fuel tank	33 gal 124.9 L
Engine details ...

Fortschritt ZT 303 Transmission
9-speed
Transmission details ...

Fortschritt ZT 303 Power
Engine	98.6 hp 73.5 kW

Mechanical
Four-wheel drive

Power Take-off (PTO)
Rear PTO Type	540/1000

Dimensions & Tires
Weight	13,300 lbs 6032 kg
Front tire	12.5-20
Rear tire	18.4/15-30
Full dimensions and tires ...

Engine

Engine Detail — 400.3 ci / 6.6 L Diesel

Manufacturer	VEB
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled
Displacement	400.3 ci 6.6 L
Bore/Stroke	4.724x5.709 inches 120 x 145 mm
Power	98.6 hp 73.5 kW
Rated RPM	1800
Torque	317.2 lb-ft 430.1 Nm
Torque RPM	1350
Firing order	1-3-4-2

Transmission

Transmission — 9 forward and 6 reverse

Gears

9 forward and 6 reverse

Dimensions

Fortschritt ZT 303 Tires
Ag front	12.5-20
Ag rear	18.4/15-30

Dimensions
Length	183.1 inches 465 cm
Width	97.2 inches 246 cm
Height	103.1 inches 261 cm
Weight	13,300 lbs 6032 kg

Photos

Fortschritt ZT 303 tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Fortschritt ZT 303 based on its 98.6 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm)	Heavy Duty	Heavy primary tillage; semi-mounted hitch recommended.
Rotary Cutter / MowerMowing & Clearing	10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼	Heavy Duty	Wide swath pasture and crop residue shredding.
Rotary TillerSeedbed Prep	78 to 84 in200 - 215 cm	Heavy Duty	Heavy commercial tiller with multi-speed gearbox.
Disc HarrowSecondary Tillage	10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙	Heavy Duty	Aggressive residue cutting in corn/cotton stubble.
Hay BalerHay & Forage	5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机	Heavy Duty	High density baling; requires minimum 85 PTO HP.

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 Fortschritt ZT 303.

Estimated Continuous Field Runtime: 6.4 hrs

Approximately 6.4 hours of continuous field operation at ~75% rated power on a full tank (33 gal / 124.9 L).

Estimated 75% Load Fuel Burn~5.1 gal/hr (19.4 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