Allis-Chalmers D21 Series I Specs ( 1963-1969 )
Production
| Description | Row-Crop tractor / Built in West Allis, Wisconsin, USA / Original price was $5,700 in 1964 / The D21 was the first Allis Chalmers tractor to have over 100 horsepower. The upgraded D21 II began at serial number 2201 in 1965. |
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| Manufacturer | Allis Chalmers |
| Total built | 1,129 |
Engine
| Engine type | Allis Chalmers 7.0L 6-cyl diesel |
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| Fuel tank | 52 gal (196.8 L) |
| Air cleaner | dry |
| Bore/Stroke | 4.25x5.00 inches (108 x 127 mm) |
| Compression | 16.0:1 |
| Coolant capacity | 21 qts (19.9 L) |
| Description | Allis Chalmers 3400 / diesel / 6-cylinder / liquid-cooled |
| Displacement | 426 ci (7.0 L) |
| Exhaust valve clearance | 0.015 inches*Hot (0.381 mm) |
| Firing order | 1-5-3-6-2-4 |
| Intake valve clearance | 0.015 inches*Hot (0.381 mm) |
| Power | 119 hp (88.7 kW) |
| Rated RPM | 2200 |
| Oil capacity | 12 qts (11.4 L) |
| Drawbar (claimed) | 93 hp (69.4 kW) |
| Drawbar (tested) | 93.09 hp (69.4 kW) |
| Plows | 7 |
| PTO (claimed) | 103 hp (76.8 kW) |
| PTO (tested) | 103.06 hp (76.9 kW) |
Transmission
| Clutch | dry disc |
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| Gears | 8 forward and 2 reverse |
| Oil capacity | 68 qts*No PTO or hydraulics (64.4 L) |
| Transmission | Power Director |
| Transmission type | 8-speed sliding gear |
| Type | sliding gear |
Mechanical
| Cab | Open operator station. |
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| Description | Power steering / Band actuated disc brakes |
| Drive type | Two-wheel drive |
Hitch
| Rear Type | III/II |
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PTO
| Rear PTO | independent |
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| Rear PTO Type | 1000 |
Electrical
| Batteries | 2 |
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| Battery AH | 95 |
| Battery volts | 12 |
| Charging amps | 32 |
| Charging system | Delco-Remy generator |
| Ground | negative |
Dimensions & Tires
| Ag front | 7.50x20 / 11.00x16 |
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| Ag rear | 18.4x34 / 24.5x32 |
| Ballasted weight | 11700 lbs (5307 kg) |
| Clearance (front axle) | 21.3 inches (54 cm) |
| Clearance (rear axle) | 26.75 inches (67 cm) |
| Length | 160.6 inches (407 cm) |
| Shipping weight | 9500 lbs (4309 kg) |
| Wheelbase | 96.1 inches (244 cm) |
| Width | 91.6 inches (232 cm) |
| Front tire | 7.50x20 |
| Rear tire | 18.4x34 |
| Weight | 9500 lbs (4309 kg) |
| Wheelbase | 96.1 inches (244 cm) |
Allis Chalmers D21 Height
| Exhaust | 106.6 inches (270 cm) |
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| Hood | 71.75 inches (182 cm) |
| Steering wheel | 90.3 inches (229 cm) |
D21 Serial Numbers
| 1963 | 100 (Series I) |
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| 1964 | 1417 (Series I) |
| 1965 | 2079 (Series I) / 2130 (Series II) |
| 1966 | 2408 (Series II) |
| 1967 | 2863 (Series II) |
| 1968 | 3777 (Series II) |
| 1969 | 4498 (Series II) |
| Description | FAQ: How to read a serial number table. |
| Final | 2129 (Series I) / 4609 (Series II) |
| Location: | Serial number on the left side of the Allis-Chalmers D21, stamped into the flange near the starter mounting. |
Nebraska Tractor Test 855
| Description | Diesel 8-speed 2WDOctober 15, 1963 - October 21, 1953Link: Nebraska Tractor Test 855 file / PTO performance / Drawbar performance / Gear 4 used for power test. / Gear 2 used for pull test. |
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| Fuel use | 7.1 gal/hour (26.9 l/hour) / 7.1 gal/hour (26.9 l/hour) |
| Max power | 93.09 hp (69.4 kW) |
| Max pull | 14840 lbs (6731 kg) |
| Power at rated engine speed | 103.06 hp (76.9 kW) |
References
| Description | New D21 Tractor (FE-131/637) published in 1963 / Operating Instructions Model D21 Tractor (TM-346A) published in 1963 |
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Speeds
| Description | With 18.4x34 rear tires. |
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