Cummins ISB Engine Control Module (ECM) – Part Number 3990517

🚚 Worldwide Shipping Available
✅ Professionally Remanufactured OEM Cummins ECM
🛠️ Plug & Play Installation

Restore your engine's performance with this professionally remanufactured Cummins ISB Engine Control Module (ECM). Designed for 6-Cylinder Cummins ISB engines, this OEM replacement module is rebuilt to factory standards, thoroughly tested, and ready for a true Plug & Play installation.

Each ECM is remanufactured by experienced ACS technicians using OEM-quality components and undergoes extensive quality control testing to ensure reliable performance and long service life.

WHAT'S INCLUDED

• 1x Remanufactured Cummins ISB Engine Control Module (ECM)

• OEM software installed and tested

• Plug & Play installation

• Technical support from experienced technicians

COMPATIBILITY

Make: Cummins
Model: ISB
Engine: 6-Cylinder Cummins
OEM Part Number: 3990517

FEATURES

• OEM-quality remanufactured ECM

• Fully tested before shipping

• Direct OEM replacement

• Plug & Play installation

• No additional programming required

• Fast worldwide shipping

• Built to meet or exceed OEM specifications

CORE EXCHANGE & WARRANTY

A repairable core is required with this purchase.

Lifetime Warranty is included only after a repairable core is returned. If a repairable core is not returned, the Lifetime Warranty does not apply.

Please contact ACS if you have any questions regarding core eligibility before ordering.

WHY CHOOSE ACS?

• ✔ OEM Remanufacturing Specialists

• ✔ Fully Tested Before Shipping

• ✔ Plug & Play Installation

• ✔ Fast Turnaround

• ✔ Worldwide Shipping

• ✔ Trusted by Repair Shops, Fleets & Equipment Owners

• ✔ Professional Technical Support

Not sure if 3990517 is the correct ECM for your Cummins ISB engine? Send us your Engine Serial Number (ESN) or current ECM part number, and our technicians will verify compatibility before you order.