Transit-Tested Emissions Control: Kalmar Ottawa Cummins ISL/ISB 6.7 L DEF Head Unit
What is it?
The Kalmar Ottawa Cummins ISL/ISB 6.7 L DEF Head Unit serves a key role in the SCR (Selective Catalytic Reduction) system of terminal tractors and heavy-duty yard vehicles powered by Cummins ISL or ISB 6.7 L engines. It delivers the correct amount of Diesel Exhaust Fluid (DEF) into the exhaust stream to neutralize nitrogen oxides (NOx), while integrated sensors continually monitor fluid level, temperature, and pressure for consistent SCR operation.
Why choose this OEM DEF Head Unit?
Designed specifically to integrate with Kalmar Ottawa chassis paired with Cummins ISL or ISB 6.7 L engines, this OEM part slots directly into the existing wiring harness and ECM setup—no modifications needed. It helps reduce DEF delivery inconsistencies, SCR fault codes, and engine derates that often plague generic replacements. Crafted for robust terminal service life, it helps avoid emissions misfires and downtime.
Key Benefits
✅ OEM drop-in compatibility for Kalmar Ottawa equipment using Cummins ISL or ISB 6.7 L engines
✅ Controlled DEF dosing to meet stringent NOx reduction standards
✅ Real-time monitoring of fluid level, temperature, and pressure via embedded sensors
✅ Designed to endure terminal-duty cycles—resilient to vibration, moisture, and temperature extremes
✅ Lowers risk of SCR error codes, limp-mode events, and equipment downtime
Applications
Ideal for Kalmar Ottawa terminal tractors, port yard haulers, and industrial movers equipped with Cummins ISL or ISB 6.7 L engines. This DEF Head Unit ensures emissions performance during frequent starts, long idle periods, and extended load cycles.
Installation Notes
Always power down equipment and relieve pressure in the DEF system prior to service. Clean the DEF tank and connectors thoroughly to remove residue or crystallization. Install using OEM connector fittings and secure fluid lines and electrical plugs. After installation, clear diagnostic codes and confirm DEF dosing and sensor functionality using a scan tool before returning to operation.
Final Thoughts
When your Kalmar Ottawa terminal vehicle shows DEF faults, SCR issues, or inconsistent dosing behavior, this Cummins-compatible DEF Head Unit is an ideal OEM-replacement. Designed for terminal reliability and clean emissions compliance, it helps keep your fleet running smoothly. Available now at Tamerx.