Woods F21D
The Woods F21D is a tractor produced by Woods Lawn Tractors. It is equipped with a 719 cc 43.9 ci engine. The listed engine power is Diesel (gross): 21 hp / 15.7 kW. Transmission: infinite forward and reverse. Operating weight: 1000 lbs 453 kg.
Engine Power
Diesel (gross): 21 hp / 15.7 kW
Fuel & Capacities
11 gal
41.6 L
Transmission
infinite forward and reverse
Operating Weight
1000 lbs
453 kg
Overview
 | 2001 - 2006
F SeriesFront-mount mowerAriens built
F Series
Front-mount mower
Ariens built |
|---|
Production | |
|---|---|
Distributor | Woods |
Manufacturer | Ariens |
Front-mount mower | |
Woods F21D Engine | |
|---|---|
21HP Kubota 719cc 3-cyl diesel | |
Fuel tank | 11 gal
41.6 L |
Engine details ...  | |
Woods F21D Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Power steering | |
Open operator station. |
Dimensions & Tires | |
|---|---|
Wheelbase | 51 inches
129 cm |
Weight | 1000 lbs
453 kg |
Front tire | 23x10.5-12 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Mow'n Machine M-Series F-Series published in 2003, by Woods | |
Dare To Compare F-Series Front-mount Mow'n Machine published in 2004, by Woods |
Engine
Engine Detail — 719 cc / 43.9 ci Diesel
Manufacturer | Kubota D722 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled horizontal-shaft inline |
Displacement | 719 cc
43.9 ci |
Bore/Stroke | 2.64x2.68 inches
67 x 68 mm |
Power (gross) | 21 hp
15.7 kW |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — infinite forward and reverse hydrostatic
Type | hydrostatic |
Gears | infinite forward and reverse |
Hydro-Gear pumps with Parker-Ross drive motors | |
Dimensions
Woods F21D Tires | |
|---|---|
Lawn/turf front | 23x10.5-12 |
Dimensions | |
|---|---|
Wheelbase | 51 inches
129 cm |
Length | 77 inches
195 cm |
Width | 50 inches
127 cm |
Height | 49.6 inches
125 cm |
Weight | 1000 lbs
453 kg |
Attachments
Attachment overview | |
|---|---|
54" front-mount mower deck | |
61" front-mount mower deck | |
72" front-mount mower deck |
Recommended Implements & Sizing Guide
Engineering recommendations for Woods Lawn Tractors Woods F21D based on its 21 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 Woods Lawn Tractors Woods F21D.
Estimated Continuous Field Runtime: 10.1 hrs
Approximately 10.1 hours of continuous field operation at ~75% rated power on a full tank (11 gal / 41.6 L).
Estimated 75% Load Fuel Burn~1.1 gal/hr (4.1 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
Woods Lawn Tractors Woods F21D Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Woods Lawn Tractors Woods F21D.
Converted Equivalents:
Horsepower (HP)21 hp
Kilowatts (kW)15.7 kW
Metric Horsepower (PS / CV)21.3 PS
Direct Competitor Comparison
Compare Woods F21D against same-era industry alternatives in the same horsepower class.
Current Model
Woods Lawn Tractors
Woods F21D
Engine Power:Diesel (gross): 21 hp / 15.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester D-219
Engine Power:19
Production Years:1962 - 1966
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