Caterpillar Deutsch 9-pin adapter to DB9

CAT-to-DB9 Adapter Cable (Deutsch 9-Pin, Caterpillar)

Do you need to log J1939/FMS data from a Caterpillar heavy duty vehicle?

This 1.5 meter CAT-to-DB9 deutsch 9-pin adapter fits most Caterpillar heavy duty vehicles and lets you easily connect your CANedge/CLX000 CAN logger to start recording J1939 data.

For non-Caterpillar vehicles, see instead our regular J1939-to-DB9 adapter cable.

When buying a CAN logger you can add this as an option for a 40% discount.

Regular price
50 EUR
Unit price
In stock | Prices ex VAT/duties | PDF quotation  
 i  To get a PDF quotation, you can go through the normal purchase process via our webshop.

Under 'Payment Method', you can select 'Request PDF quotation'. Once you submit your request, we will send the PDF quotation in <30 minutes.

If you prefer, you can of course also contact us.

Fleet Management J1939 WiFi Logger HEAVY DUTY

Fits most CAT trucks, buses & other heavy duty vehicles

Standard CAN in Automation DB9 STANDARD DB9

Fits our CAN loggers & all adapters (CiA 303-1 DB9 pinouts)

Overmold J1939 Deutsch 9 Pin Connector Adapter OVERMOLDED

Quality overmold ensures top flexibility & durability

Solid Quality Rugged Cable AWG SOLID CABLES

Rugged quality 1.5m cable with 22 AWG (0.5 mm2) thickness

Access CAT CAN data DIRECT

Enable direct access to Caterpillar CAN buses

1 Year Warranty 1Y WARRANTY

We offer a 1-year warranty on all our products

About the CAT adapter

The CAT-to-DB9 adapter cable is suited for use in most Caterpillar heavy duty vehicles - incl. trucks, transit buses, excavators, construction machinery and more. The cable lets you connect your CANedge/CLX000 CAN logger directly to the CAN bus.

Simply locate the 9-pin deutsch connector in your CAT vehicle, typically found in the cabin (sometimes behind a panel).

For more on J1939, check out below guides:

use cases
J1939 Deutsch Adapter 9 Pin

Check out our tech specs, use cases or FAQ - or buy now!

Do you have any questions?

Contact us

Adapter Cable Length 150 cm
Adapter DB9 Pins In accordance with CiA 303-1
Compatibility High Speed CAN Bus (ISO 11898-2) incl. e.g. CAN FD, SAE J1939, NMEA 2000
Cable Thickness 22 AWG (0.50 mm2)
Connectors 9-pin D-sub (DB9) female to CAT 9-pin deutsch (female)
Temperature Operating temperature: -20degC to +80degC
Weight 220G

DB9-CAT adapter pinout

DB9 (female) Function CAT
1 N/C
4 N/C
5 N/C
6 N/C
8 N/C
Caterpillar DB9 Adapter Deutsch 9 Pin

Below are two use cases examples where the DB9-J1939 adapter is useful:

SAE J1939 DB9 Connector Adapter Truck Heavy Duty

Heavy duty fleet telematics

Need to log J1939 data from a truck fleet?

In heavy duty vehicle fleets, the simplest way to record J1939 data with your CAN logger is to connect it directly to the CAN bus via a DB9-J1939 adapter. This way, you'll automatically start logging all broadcasted raw J1939 data from the vehicle - allowing you to e.g. set up telematics solutions in no time. The CANedge/CLX000 support optional 'silent mode' to ensure that the device does not affect the CAN bus.

Standalone data logging from transit buses

Need to log J1939 data from a vehicle - incl. on-request PGNs?

In some cases, you'll need to be able to both log broadcasted J1939 data - and request data from the CAN bus. Many J1939 parameters are only available on-request. The CANedge/CLX000 can send custom CAN messages when in direct connection to the CAN bus. The DB9-J1939 adapter enables this when 'silent mode' is disabled.

Request J1939 PGN Data from Bus Fleet

The J1939 adapter fits the vast majority of heavy duty vehicles. However, cases exist where you'll need e.g. an OBD2-DB9 adapter or an alternative heavy-duty adapter. We encourage you always visually evaluate the vehicle in question. If in doubt, feel free to take a picture and contact us. If you need a cable not available on our site, please let us know as well.