Caterpillar (538-5051) Truck 9 PIN J1939 to OBD-II Adapter Cable
Introduction
Do you need to connect your AutoPi device to a Caterpillar truck for J1939 diagnostics and data logging?
The Caterpillar (538-5051) Truck 9 PIN J1939 to 16 PIN OBD-II Adapter Cable fits many Caterpillar truck models — including heavy-duty trucks and commercial vehicles — and lets you easily connect your AutoPi device to start reading J1939 data. Simply locate the 9-pin diagnostic port in your vehicle, typically found in the cabin, and plug in the cable.
The cable features a plug-and-play design for quick and secure connections, and is constructed with premium materials built for heavy-duty environments.
This adapter cable can be purchased through the AutoPi shop: Caterpillar (538-5051) Truck 9 PIN J1939 to 16 PIN OBD-II Adapter Cable.
Specifications
| Property | Details |
|---|---|
| Compatibility | Caterpillar 538-5051 truck with 9 PIN diagnostic port |
| Connector Types | 9 PIN (male) to 16 PIN OBD-II (female) |
| Protocol Support | J1939 for vehicle diagnostics |
| Durability | Premium materials for heavy-duty use |
| Ease of Use | Plug-and-play design |
Pinout
| AutoPi Function | OBD-II 16 PIN | Caterpillar 9 PIN |
|---|---|---|
| CAN High | Pin 6 | Pin G |
| CAN Low | Pin 14 | Pin F |
| Power | Pin 16 | Pin A |
| GND | Pin 5 | Pin B |
The pinout above is based on the standard J1939 to OBD-II mapping. Refer to your Caterpillar truck documentation for any model-specific variations.
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