Description
Caterpillar 117-8351 ECM Refurbished – 40 Pin
⚠️ Important: This is a refurbished Caterpillar ECM, and it is sold unprogrammed.
Programming is required after installation. This unit is not plug-and-play.
Caterpillar Product Overview
The unit is being sold as a refurbished ECM, but please note that it is supplied without programming.
The buyer is responsible for programming, setup, calibration, and final compatibility verification before installation and use.
Important Installation Notice
- Refurbished Caterpillar ECM
- Part Number: 117-8351
- Connector Style: 40 Pin
- Programming required after installation
- Sold unprogrammed
- Not plug-and-play
- Buyer must verify exact compatibility before purchase
Compatibility and Application Reference
The following list is provided as a where-used reference for Caterpillar part number 117-8351.
This information helps give more application context, but it does not guarantee direct interchangeability.
Final fitment must always be confirmed by exact part number, original label, engine serial number, machine prefix, and programming requirements.
| Application | Prefix |
|---|---|
| Challenger 85C | 9TK |
| Challenger 75C | 4KK |
| Gen Set Engine 3406E | 9NN |
| Industrial Engine 3176B | 3NL |
| Industrial Engine 3406E | 6BR |
| Truck Engine 3406E | 5EK |
| Truck Engine 3176B | 9CK |
| Excavator 385B | BKF |
| Excavator 385B | BLY |
| Load Haul Dump R1700 II | 4LZ |
| Load Haul Dump R2900 | BAR |
| Load Haul Dump R1600G | 9PP |
| Load Haul Dump R1600 | 9EW |
| Load Haul Dump R1600 | 9XP |
| Load Haul Dump R1700G | 8XZ |
| Load Haul Dump R2900 | 5TW |
| Marine Engine 3176B | 9WK |
| Underground Articulated Truck AD55 | ANW |
Final Buyer Notice
Please verify the exact 117-8351 Caterpillar ECM part number before purchasing.
This unit is sold as a refurbished 40-pin ECM, but it will still require proper programming after installation.
Why trust us
Our engineering team has over 15 years of experience, more than 10K repaired ECMs, and the latest simulation technology. We are always happy to provide technical assistance. Feel free to contact us to discuss the faults you are experiencing before sending in your parts.
ECM Engineering USA / ECM Repair USA
Truck ECM Repair | ECM Repair Truck
🛠️ Buyer is responsible for programming, setup, calibration, and compatibility verification.

