3E0156 Switch A fit Caterpillar
3E0156 Switch A fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
3E0156 Switch A for Caterpillar
3E0156 is a key-operated start switch for the manual starting of engines in Caterpillar-manufactured heavy equipment. The switch has three positions, operates in 12 V and 24 V electrical systems, and includes a starter motor connection or starter motor function as specified for this part. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
Fitment
The switch is used in Caterpillar equipment belonging to the following machine categories:
- Tracked bulldozers
- Material loaders
- Petroleum products equipment
- Wheel bulldozers
- Underground articulated dump trucks
- Industrial engine equipment
- Wheel loaders
- Equipment used in the mining industry
- Earthwork compactors
The source data identifies the applicable Caterpillar equipment by machine category and does not provide specific model or series numbers. Compatibility should therefore be checked against the installed switch, equipment identification data, and the required part number before installation.
Cross-reference numbers
- 3E0156
- 3E-0156
Both number formats identify the same switch reference used for this product. No additional manufacturer or supplier cross-reference numbers are specified in the available product data.
Specifications
| Part type | Switch A; key-operated engine start switch |
| Application | Manual engine starting in heavy equipment |
| Equipment manufacturer | Caterpillar |
| Electrical system voltage | 12 V / 24 V |
| Number of switch positions | 3 |
| Key operation | Engine is started manually using a key |
| Key removal | The key can be removed only when the switch is in the OFF position |
| Starter function | Includes a starter motor as stated in the product data |
| Identification marking | The switch is marked with the part number, replacement number, and date code |
| Switch housing marking | The supplied description specifies a Caterpillar logo below the ignition key lock and a shutter on the outside of the lock |
| Weight | 0.4 lb |
| Length | 7 cm |
| Width | 6 cm |
| Depth | 7.2 cm |






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