Cummins actuator 3408326 plays a core regulatory role in the engine fuel control system. By receiving electrical signals from the Electronic Control Unit (ECU), it drives internal solenoid valves or stepping motors to precisely adjust the fuel pump plunger stroke, realizing dynamic control of fuel injection quantity and timing. This ensures stable engine speed under different working conditions such as idle, acceleration, and heavy load, reducing fuel consumption and emissions.
The actuator features a high-strength engineering plastic housing and corrosion-resistant metal valve core, with an operating temperature range of -40℃ to 125℃ and IP67 protection rating, resistant to dust and short-term water immersion. Its response time is ≤50ms, control accuracy error ≤1%, compatible with Cummins ISB6.7, QSB7, QSL9 series engines, and fully compatible with the original ECU communication protocol, requiring no additional calibration after installation.
As a professional supplier, Ningbo Qiuning Trading Co., Ltd. provides both original and aftermarket 3408326 Cummins actuators. Original products strictly follow Cummins EMC standards, passing 1000-hour high-low temperature cycle tests, suitable for commercial vehicles with extremely high control accuracy requirements; Aftermarket products pass ISO 9001 quality certification, with key performance parameters consistent with the original, priced at 50%-60% of the original, meeting the reliable use needs of budget-conscious customers.
It is recommended to regularly check the sealing of the actuator terminals to avoid signal abnormalities due to moisture. We have sufficient inventory, supporting global delivery within 48 hours, and our technical team can provide compatible model inquiry and installation guidance. Welcome to consult and purchase according to actual needs:
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4B3.9-G1,4BT3.9-G1,4BTA3.9-G2,6BT5.9-G1,6BTA5.9-G2,6CTA8.3-G2,6CTA8.3-G3,6LTAA8.9-G2
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46KVA 4BTA3.9-G1-60Hz
