Product Description
Autel CAT9 Adapter — 9-Pin Caterpillar On-Highway Truck Adapter
The Autel CAT9 adapter is a 9-pin Deutsch connector adapter for diagnosing Caterpillar engines on commercial on-highway trucks and vehicles. If your shop services Class 6-8 trucks running CAT powerplants, this adapter connects your Autel MaxiSYS MS909CV to those engines through the standard 9-pin heavy-duty diagnostic port.
What the CAT9 Does
On-highway commercial trucks with Caterpillar engines use the standard 9-pin Deutsch diagnostic connector common across Class 3-8 trucks. The CAT9 adapter provides the proper interface for Caterpillar-specific protocols through that port, working with the Autel MaxiSYS MS909CV commercial vehicle diagnostic tablet and VCI to enable engine diagnostics on CAT-powered on-highway applications.
CAT9 vs. CAT14 — Which Do You Need?
Autel offers two Caterpillar adapters depending on where the machine runs:
- CAT9 (this adapter, $50): 9-pin Deutsch connector — for on-highway trucks and Class 3-8 commercial vehicles with Caterpillar engines
- CAT14 ($50): 14-pin proprietary connector — for off-highway construction and agriculture equipment (excavators, dozers, ag tractors) with Caterpillar engines
Shops servicing both on-highway fleets and job-site equipment will want both adapters. The MS909CV platform handles both use cases with the appropriate adapter installed.
Compatibility
- Required tablet: Autel MaxiSYS MS909CV with Bluetooth MFVCI/J2534/RP1210 device
- Vehicle type: On-highway commercial trucks and vehicles with Caterpillar engines
- Connection type: 9-pin Deutsch (standard heavy-duty diagnostic port)
- Software requirement: Ensure MS909CV tablet and VCI have latest software updates before use
Who Needs This Adapter
This is a targeted add-on for shops already invested in the MS909CV commercial vehicle platform that need to add Caterpillar on-highway coverage. At $50, it is a low-cost way to extend the diagnostic reach of a $5,995 system. Trucking fleets, commercial repair shops, and dealers servicing CAT-powered Class 6-8 vehicles are the primary buyers.
What's in the Box
- CAT9 9-pin Caterpillar on-highway adapter
Note: The MS909CV tablet and VCI are sold separately and required to use this adapter.
Why Buy From OEM Diagnostic Tools?
OEM Diagnostic Tools has specialized in professional diagnostic equipment since 2016. We carry the complete range of Autel heavy-duty adapters and can help you identify exactly what you need for your fleet. Free shipping on every order. Tech support available at 866-217-0063 — call before you buy if you have questions about compatibility. Full warranty on all products.
Call 866-217-0063 for quick answers and help!
