Commins Master Overlay Package 2026 | CM870 to CM2450 — 29 ECM Files

🔧 Commins Master Overlay Package 2026

The most complete Commins overlay collection available — 29 validated ECM files covering CM870 through CM2450.

Review each file’s contents and compatibility with the specific ECM and calibration before use.

⚙️ What Are These Overlays?

An ECM overlay is a file containing a set of parameter values associated with an engine-control configuration. Its contents and compatibility should be reviewed against the specific ECM, calibration and matching configuration file. An overlay alone does not establish safe operation, emissions compliance or suitability for a particular engine.

✅ For advanced users only — you must understand overlays, have access to matching config files, and be familiar with the full ECU backup, unlock, and flash procedure. No instructions are included.

📦 Purchase Options

• 🏆 Complete Pack — Best value. All 29 overlays + 135 Screen Files + ECFG Master File Collection (25GB+ of ECF/Config files for nearly every engine)
• 🔩 Individual Overlays — Available by 3-digit engine code. Price varies per file.

Each overlay covers all CPL and ECM codes within its engine family.

✅ Key Features

• 🚫 No blocked faults in block fault tables
• 🔵 DEF gauge reads 75% full — works with or without DEF tank (plugged or unplugged sensors)
• 🌀 VGT off files included — designed to work alongside the main overlay
• 🛠️ All files tested for safe and correct engine function on mechanically sound engines
• 📁 Complete Pack Bonus: 135 Screen Files + 25GB+ ECFG Master File Collection

📋 Overlays Included (29 Files)

• BAB – ISM/M11 CM876
• BAC – ISX CM871
• BAD – ISB CM2150D
• BAE – ISC CM2150D
• BAF – ISL CM2150D
• BBN – ISB CM2250
• BBO – ISC 8.3 CM2250
• BBP – ISL9 CM2250
• BBQ – QSB6.7 CM2250
• BBZ – ISX11/12/15 CM2250
• BCQ – PACCAR MX ACM CM1881
• BDH – ISB6.7 CM2350
• BDO – ISL9 (PX9) CM2350
• BDR – ISX12/15 CM2350
• BEE – QSB6.7 CM2350
• BEF – X15/QSX15 JD CM2350
• BFV – QSF3.8 T4F CM2350
• BGT – X15 CM2350
• BGU – B6.7 CM2350
• BGV – L9 CM2350
• BHQ – Chrysler 6.7L CM2450B/F
• BID – Stage V QSB6.7 CM2350
• BIE – Stage V QSL8.9 CM2350
• BJJ – Stage V B4.5 CM2350
• BKK – L9 CM2450
• BKR – X15 CM2450
• BLO – B6.7 CM2450
• ENF – ISX15 CM870
• IS2 – ISM CM870/CM875

📌 Note

These files are intended for professional use on applicable equipment. Please verify compatibility with your specific engine family and software version before use. Support covers file functionality; compatibility with specific OS or config setups may require additional assistance.