Cub Cadet 1720
The Cub Cadet 1720 is a tractor produced by Cub Cadet Lawn Tractors. It is equipped with a 691 cc 42.18 ci engine. The listed engine power is Gasoline (gross): 17 hp / 12.7 kW. Transmission: infinite forward and reverse. Operating weight: 423 to 724 pounds.
Engine Power
Gasoline (gross): 17 hp / 12.7 kW
Fuel & Capacities
3 gal
11.4 L
Transmission
infinite forward and reverse
Operating Weight
724 lbs*Weight with mower deck.
328 kg
Overview
 | 1988 - 1991
Lawn tractor |
|---|
Production | |
|---|---|
Manufacturer | Cub Cadet (a part of MTD) |
Lawn tractor | |
Original price was $4,059 in 1991 | |
Variants | |
|---|---|
1715 | gear |
1720 | hydrostatic |
Cub Cadet 1720 Engine | |
|---|---|
17HP Kohler 691cc 2-cyl gasoline | |
Fuel tank | 3 gal
11.4 L |
Engine details ...  | |
Cub Cadet 1720 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Dry disc brakes | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Mid PTO | independent |
Clutch | electric |
Dimensions & Tires | |
|---|---|
Wheelbase | 45 inches
114 cm |
Weight | 423 to 724 pounds |
Front tire | 15x6-6 |
Rear tire | 20x10-8 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 15 |
Battery volts | 12 |
References | |
|---|---|
 | |
Lawn Tractors & Riding Mowers published in 1989, by Cub Cadet | |
The Rugged Cub Cadet Lawn Tractor published in 1991 | |
1991 Product Line published by Cub Cadet | |
Anniversary Sale Bonanza! published in 1991, by Cub Cadet | |
Service Manual Lawn Tractors (772-3870) published in 1990 |
Engine
Engine Detail — 691 cc / 42.18 ci Gasoline
Manufacturer | Kohler MV18 |
Fuel Type | Gasoline |
Configuration | 2-cylinder, air-cooled vertical-shaft |
Displacement | 691 cc
42.18 ci |
Bore/Stroke | 3.125x2.75 inches
79 x 70 mm |
Power (gross) | 17 hp
12.7 kW |
Compression | 6.0:1 |
Idle RPM | 1350-3400 |
Starter | electric |
Starter volts | 12 |
Sparkplug | 759-334 |
Sparkplug gap | 0.025 inches
0.635 mm |
Oil capacity | 2 qts
1.9 L |
Oil change | 50 h |
Transmission
Transmission — infinite forward and reverse belt-driven hydrostatic
Type | belt-driven hydrostatic |
Gears | infinite forward and reverse |
 | |
Dimensions
Cub Cadet 1720 Tires | |
|---|---|
Lawn/turf front | 15x6-6 |
Lawn/turf rear | 20x10-8 |
Dimensions | |
|---|---|
Wheelbase | 45 inches
114 cm |
Length | 68.5 inches
173 cm |
Height (steering wheel) | 40 inches
101 cm |
Shipping weight | 423 lbs
191 kg |
Operating weight | 724 lbs*Weight with mower deck.
328 kg |
Attachments
Attachment overview | |
|---|---|
38" mid-mount mower deck | |
46" mid-mount mower deck | |
Snowblower | |
Blade |
Photos
Cub Cadet 1720
Recommended Implements & Sizing Guide
Engineering recommendations for Cub Cadet Lawn Tractors Cub Cadet 1720 based on its 17 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. |
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 Cub Cadet Lawn Tractors Cub Cadet 1720.
Estimated Continuous Field Runtime: 3.4 hrs
Approximately 3.4 hours of continuous field operation at ~75% rated power on a full tank (3 gal / 11.4 L).
Estimated 75% Load Fuel Burn~0.9 gal/hr (3.3 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
Cub Cadet Lawn Tractors Cub Cadet 1720 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Cub Cadet Lawn Tractors Cub Cadet 1720.
Converted Equivalents:
Horsepower (HP)17 hp
Kilowatts (kW)12.7 kW
Metric Horsepower (PS / CV)17.2 PS
Direct Competitor Comparison
Compare Cub Cadet 1720 against same-era industry alternatives in the same horsepower class.
Current Model
Cub Cadet Lawn Tractors
Cub Cadet 1720
Engine Power:Gasoline (gross): 17 hp / 12.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 154 Lo-Boy
Engine Power:15.6
Production Years:1968 - 1974
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