OEM-GRADE DIAGNOSTIC HARNESS · CAT-ET4-MAIN-9-14P · FULL PINOUT
Caterpillar CAT ET 4 (Comm Adapter 4) Combined 9-Pin + 14-Pin Main Diagnostic Cable
Replace worn or intermittent cables on your Caterpillar CAT ET 4 (Communications Adapter 4 · 538-5051) with a shielded, full-pin industrial harness built for reliable workshop diagnostics.
- CAT-ET4-MAIN-9-14P
- Full-Pin Pure Copper
- Locking Connector
- 100% Continuity Tested
Engineered for Professional Workshop Demands
The CAT ET 4 (Comm Adapter 4) 9+14 Pin Ana Veri Kablosu is built to deliver speed, accuracy, and stability in busy service bays.
Authentic 1:1 OEM Full Pinout
Unlike budget cables with missing wires, every data, ignition sense, and power pin required for CAT Data Link (CDL) · Dual SAE J1939 CAN · Ethernet / DoIP · J1708 is fully populated.
EMI/RFI Shielded Pure Copper Conductors
Multi-strand oxygen-free copper with foil shielding blocks electromagnetic interference during high-speed CAN and USB communication.
Locking Connectors with Strain Relief
Moulded strain-relief collars on both the Yüksek Yoğunluklu Kilitli CAT ET 4 Ana Ünite Konnektörü and Birleşik 9-Pin Deutsch + 14-Pin CAT Yuvarlak İş Makinesi Soketi (DoIP & CDL Uyumlu) ends prevent internal wire fatigue.
Safe ECU Flashing & Calibration
Maintains rock-solid voltage and signal integrity during programming sessions in CAT Electronic Technician (CAT ET) · CAT SIS · WinFlash.
UNINTERRUPTED DIAGNOSTIC LINK
Essential Replacement Harness for Caterpillar CAT ET 4 (Communications Adapter 4 · 538-5051)
Over 80% of 'VCI Not Found' or 'Communication Error' faults are caused by damaged cables. Upgrading to this OEM-spec harness delivers:
- Instant, stable connection to all ECUs across Yeni Nesil (Next-Gen) ve Klasik Caterpillar Ekskavatör, Loder, Dozer ve Jeneratörler
- VCI-side termination: Yüksek Yoğunluklu Kilitli CAT ET 4 Ana Ünite Konnektörü
- Vehicle / PC termination: Birleşik 9-Pin Deutsch + 14-Pin CAT Yuvarlak İş Makinesi Soketi (DoIP & CDL Uyumlu)
- Full protocol pass-through: CAT Data Link (CDL) · Dual SAE J1939 CAN · Ethernet / DoIP · J1708
WORKSHOP DURABILITY
Oil, Heat & Crush Resistant Industrial Jacket
Built to survive daily plug-in cycles on the workshop floor:
- Gold/nickel-plated terminal pins resist oxidation and contact wear
- High-flexibility elastomer jacket remains supple in cold weather
- Reference part specification: CAT-ET4-MAIN-9-14P
- 100% pin-to-pin continuity tested prior to dispatch
ARCHITECTURE & SYSTEM COMPATIBILITY
CAT ET 4 (Comm Adapter 4) 9+14 Pin Ana Veri Kablosu Software, Protocol & ECU Coverage
Hardware and operating parameters engineered for uninterrupted dealer-level communication:
- Full Pinout: Matches CAT-ET4-MAIN-9-14P OEM wiring specification
- Locking Fit: Vibration-resistant connectors prevent dropouts
- Pure Copper: High-speed CAN/DoIP/USB transmission without packet loss
- Caterpillar CAT ET 4 (Communications Adapter 4 · 538-5051)
Detailed Visual & Technical Showcase
Close-up details and application views of the CAT ET 4 (Comm Adapter 4) 9+14 Pin Ana Veri Kablosu.
Technical Specifications & System Parameters
Complete manufacturer-verified technical data and operating ranges.
| Product Model | Caterpillar CAT ET 4 (Comm Adapter 4) Combined 9-Pin + 14-Pin Main Diagnostic Cable |
|---|---|
| Reference Part No | CAT-ET4-MAIN-9-14P |
| Compatible VCI Unit | Caterpillar CAT ET 4 (Communications Adapter 4 · 538-5051) |
| Compatible Software | CAT Electronic Technician (CAT ET) · CAT SIS · WinFlash |
| VCI Side Connector | Yüksek Yoğunluklu Kilitli CAT ET 4 Ana Ünite Konnektörü |
| Vehicle / PC Connector | Birleşik 9-Pin Deutsch + 14-Pin CAT Yuvarlak İş Makinesi Soketi (DoIP & CDL Uyumlu) |
|---|---|
| Supported Protocols | CAT Data Link (CDL) · Dual SAE J1939 CAN · Ethernet / DoIP · J1708 |
| Vehicle / Equipment Range | Yeni Nesil (Next-Gen) ve Klasik Caterpillar Ekskavatör, Loder, Dozer ve Jeneratörler |
| Quality & Warranty | No Warranty on Consumable Cables (100% Tested Before Dispatch) |
Workshop Application & Operating Guide
Recommended 4-step standard procedure for accurate results.
Inspect Connector Pins
Verify both sockets are clean and free of bent pins or debris before connecting.
Lock VCI Connector
Seat the Yüksek Yoğunluklu Kilitli CAT ET 4 Ana Ünite Konnektörü firmly onto your VCI unit and tighten any locking screws.
Attach Vehicle / PC Plug
Connect the Birleşik 9-Pin Deutsch + 14-Pin CAT Yuvarlak İş Makinesi Soketi (DoIP & CDL Uyumlu) and confirm the VCI power/status LEDs illuminate.
Disconnect by Connector Body
Always grasp the moulded connector body rather than pulling on the cable jacket.
Package Contents — Ready for the Workshop
Complete kit inspected prior to dispatch.
- 1 × Caterpillar CAT ET 4 (Comm Adapter 4) Combined 9-Pin + 14-Pin Main Diagnostic Cable (CAT-ET4-MAIN-9-14P)
- 1 × Protective Anti-Static Bag (100% Continuity Tested)
100% Pin Continuity & Quality Control Assurance
Every CAT ET 4 (Comm Adapter 4) 9+14 Pin Ana Veri Kablosu harness is 100% continuity- and isolation-tested on the Otoeko test bench prior to dispatch (Consumable cables carry no warranty against physical wear or strain).
Frequently Asked Questions
Key technical questions from technicians and workshops about the CAT ET 4 (Comm Adapter 4) 9+14 Pin Ana Veri Kablosu.
Which diagnostic interface does this cable fit?
It is specifically engineered for Caterpillar CAT ET 4 (Communications Adapter 4 · 538-5051).
Are all internal pins populated?
Yes, it features a complete 1:1 OEM pinout supporting CAT Data Link (CDL) · Dual SAE J1939 CAN · Ethernet / DoIP · J1708.
Will this fix intermittent connection drops?
Yes, if your existing cable has internal wire fatigue or loose pins, replacing it restores stable VCI communication.
Is it safe for ECU programming?
Yes, the shielded pure copper conductors and locking connectors ensure uninterrupted data transfer.
Which vehicles are supported?
Supports Yeni Nesil (Next-Gen) ve Klasik Caterpillar Ekskavatör, Loder, Dozer ve Jeneratörler.
What is the warranty policy on cables?
Diagnostic cables are consumable workshop items and carry no warranty against physical wear, but every unit is 100% continuity-tested prior to shipping.