Allis Chalmers D19 Overview
Allis Chalmers D19 is a mid-size row-crop tractor offered in gasoline, diesel, and LPG configurations. It pairs a proven engine with a straightforward Power Director transmission built for steady field work.
Nebraska Tractor Tests document performance for each fuel variant, and operator manuals plus a parts-pointer guide provide practical guidance on controls, maintenance, and parts matching for the D19’s multiple configurations.
Identifying the correct configuration before parts or service is essential: verify the serial range and fuel setup, and note where the serial plate sits (top of the rear axle below the seat).
Allis Chalmers D19 Quick Answers
- Production yearsThe Allis Chalmers D19 was produced from 1961 through 1964.
- Engine and power contextEngine displacement is 262 ci (4.3 L); published figures vary by fuel configuration (gasoline, diesel, LPG) and test data should be matched to the correct variant.
- PTO and hitchRear PTO is 540 (1.375) with a Category II rear hitch.
- WeightWeight range is 6650–6840 pounds depending on configuration.
- Tested power (gasoline variant)Gasoline version shows drawbar power around 63.91 hp and PTO power around 71.54 hp in official Nebraska tests.
Engine and Power
Engine options cover gasoline, diesel, and LPG configurations sharing a 262 ci displacement. Gasoline and LPG variants run to about 2000 rpm with a dry air cleaner and 12-volt starting; the diesel version is typically listed at 2000 rpm with its own idle range. Compression varies by variant: 8.0:1 (gasoline), 14.0:1 (early diesel) with a later note of 15.0:1, and 9.35:1 (LP-gas). Firing order is 1-5-3-6-2-4.
Gasoline engine
Allis Chalmers G-262 / gasoline / 6-cylinder / liquid-cooled
| Displacement | 262 ci 4.3 L |
|---|---|
| Bore Stroke | 3.5625x4.375 inches 90 x 111 mm |
| Power | 85 hp 63.4 kW |
| Air Cleaner | dry with precleaner |
| Compression | 8.0:1 |
| Rated Rpm | 2000 |
| Idle Rpm | 375-2300 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
Diesel engine
Allis-Chalmers D-262T / turbocharged diesel / 6-cylinder / liquid-cooled
| Displacement | 262 ci 4.3 L |
|---|---|
| Bore Stroke | 3.5625x4.375 inches 90 x 111 mm |
| Power | 80 hp 59.7 kW |
| Air Cleaner | dry with precleaner |
| Compression | 14.0:1 (early) |
| Rated Rpm | 2000 |
| Idle Rpm | 650-2300 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
LP-gas engine
Allis-Chalmers / LP gas / 6-cylinder / liquid-cooled
| Displacement | 262 ci 4.3 L |
|---|---|
| Bore Stroke | 3.5625x4.375 inches 90 x 111 mm |
| Power | 80 hp 59.7 kW |
| Air Cleaner | dry with precleaner |
| Compression | 9.35:1 |
| Rated Rpm | 2000 |
| Idle Rpm | 375-2300 |
| Firing Order | 1-5-3-6-2-4 |
| Starter Volts | 12 |
Manufacturer
Manufacture years
Engine
PTO power
Drawbar power
Transmission
Power Director is the D19’s sliding-gear transmission with 8 forward and 2 reverse gears. This setup influences clutch behavior, speed selection, and parts compatibility for maintenance and ordering.
Power Director
| Name | Power Director |
|---|---|
| Type | sliding gear |
| Gears | 8 forward and 2 reverse |
PTO and Hitch
PTO and hitch specs center on a 540 (1.375) rear PTO and a Category II rear hitch. Implement match requires aligning PTO type and speed with the implement, plus ensuring hitch class compatibility for any mounted equipment.
Rear PTO
Rear PTO type
Engine RPM
Rear hitch
Tires and Dimensions
Tire and dimension values can vary by wheel, axle, and configuration.
Configuration-specific values are split out where the same model has documented differences by engine, transmission, or equipment.
Wheelbase
Weight
Length
Width
Height
Front tire
Rear tire
Ag front
- 6.50x16
- 9.00x10 (single front)
Ag rear
- 15.5x38
- 16.9x34
Serial Number Lookup
Serial numbers help narrow configuration by model year, with prefixes and regional builds varying by market. Serial location is at the top of the rear axle, below the seat.
1961
1962
1963
1964
location
Manuals and Documents
Manuals and test reports provide controls, service categories, parts matching, and performance context that do not fit into short spec rows.
Match coverage carefully before relying on a document for service decisions, especially when a single manual, catalog, or report covers several models, fuel types, transmissions, or tractor variants.
- Allis Chalmers D19 operator manual reprintManual reprint candidate for operating instructions, capacities, and maintenance procedure checks.View manual reprint
- Allis Chalmers D19 parts-book pointerDealer source pointing D19 users toward AGCO parts books and common service-part categories.View parts source
- Nebraska Test 810: Allis-Chalmers D-19 gasolineOfficial Nebraska test report for the D-19 gasoline 8-speed test configuration.Open test report
- Nebraska Test 811: Allis-Chalmers D19 dieselOfficial Nebraska test report for the D19 diesel 8-speed test configuration.Open test report
- Nebraska Test 814: Allis-Chalmers D19 LPGOfficial Nebraska test report for the D19 LPG 8-speed test configuration.Open test report
Parts Checks Before Ordering
Do not order Allis Chalmers D19 parts from the model name alone. Match the part to the tractor's fuel type, serial/year, transmission, hydraulic setup, battery/electrical configuration, and service-part category before selecting parts.
Filters, fluids, belts, electrical parts, clutch/PTO parts, and hydraulic components vary by configuration. Exact part numbers require a parts catalog, manual, or trusted supplier to ensure correct fit.
Accuracy Note
Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.