Ditch Witch Cummins ISB 6.7L

Heavy-Duty DEF Performance: Ditch Witch Cummins ISB 6.7L

What is it?
The Ditch Witch Cummins ISB 6.7L DEF Head Unit is a high-precision emissions control component designed for Ditch Witch construction and trenching equipment powered by Cummins ISB 6.7L diesel engines. This essential module meters Diesel Exhaust Fluid (DEF) into the exhaust stream to neutralize nitrogen oxide (NOx) emissions, with built-in sensors to monitor fluid level, pressure, and temperature for reliable SCR system performance.

Why choose a Ditch Witch-specific DEF Head Unit?
Engineered for perfect integration with Ditch Witch chassis and Cummins ISB 6.7L engine systems, this OEM-calibrated DEF Head Unit ensures plug‑and‑play installation—no retrofit needed. By matching the factory ECU protocols and connector standards, it reduces the risk of SCR faults, limp-mode events, and dosing inconsistencies often encountered with aftermarket parts. Built for jobsite durability, it stands up to vibration, dust, and temperature extremes.

Key Benefits
✅ Direct-fit compatibility with Ditch Witch equipment using Cummins ISB 6.7L engines
✅ Precisely controls DEF dosing for maximum NOx reduction
✅ Integrated sensors continuously monitor fluid level, temperature, and pressure
✅ Resistant to DEF crystallization, harsh vibration, and extreme operating conditions
✅ Helps prevent SCR system fault codes, engine derates, and emissions system failures

Applications
Ideal for Ditch Witch trenching machines, directional drills, excavators, and utility carriers equipped with Cummins ISB 6.7L engines. This DEF Head Unit ensures dependable SCR performance throughout strenuous field cycles and demanding construction environments.

Installation Notes
Before installation, power down the machine and relieve DEF system pressure. Thoroughly clean the DEF reservoir and fluid lines to remove deposits or crystallized residue. Install the new head unit using OEM connectors and secure all fluid and electrical fittings properly. After installation, clear any existing fault codes and verify accurate DEF dosing and sensor functionality with a diagnostic scan tool.

Final Thoughts
If your Ditch Witch equipment powered by a Cummins ISB 6.7L engine is showing DEF system errors or SCR-related performance issues, the Ditch Witch–specific OEM DEF Head Unit provides the reliable fix you need. Engineered for rugged reliability and emissions precision, it restores the DEF system’s accuracy and keeps your machine compliant and running strong. Available now at Tamerx—trusted parts built for real-world demand.