Power
Power specifications| Engine | no record |
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| PTO | no record |
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| Drawbar | 27.2 hp tested |
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| Belt pulley | 32.5 hp tested |
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| Listed power | 36 hp belt basis |
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Engines
Engines fitted to the Caterpillar R2| Caterpillar 4.1L 4-cyl gasolineGasoline · 4 cyl | 251 ci |
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| Caterpillar 3.6L 4-cyl gasolineGasoline · 4 cyl | 221 ci |
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Engine details
- Caterpillar 4.1L 4-cyl gasoline
- Bore × stroke
- 4 in × 5 in
- Rated speed
- 950 rpm
- Cooling
- liquid-cooled
- Notes
- Original engine, used on the 5E version.
- Caterpillar 3.6L 4-cyl gasoline
- Bore × stroke
- 3.75 in × 5 in
- Rated speed
- 1,525 rpm
- Cooling
- liquid-cooled
- Notes
- The 3400G was used on the 4J and 6J versions, which were most R-2 tractors built.
Transmissions
Transmissions for the Caterpillar R2| 3-speed geargear | 3F / 1R |
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| 5-speed geargear | 5F / 1R |
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Transmission notes
3-speed gear: The three-speed was used on the 5E version, built in limited quantities until 1938.
5-speed gear: The five speed transmission was used on the R-2 4J and R-2 6J.
Weight
Weight specifications| Weight | 6,350 lb shipping |
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| Shipping | 6,350 lb |
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Dimensions
Dimensions specifications| Wheelbase | no record |
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| Length | no record |
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Capacities
Capacities specifications| Fuel tank | 20 gal |
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Hydraulics
Hydraulics specifications| Pump flow | no record |
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Hitch
Hitch specifications| Rear lift capacity | no record |
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Chassis
Chassis specifications| Drive | tracks |
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| Cab | Open operator station |
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Tracks
Tracks specifications| Track width | 13 in |
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Production
Production specifications| Total built | 2,418 |
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| Factories | Peoria, Illinois, USA |
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| Built by | Caterpillar |
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