Description

The 3925864 Turbo Oil Return Line is a genuine OE-spec diesel engine component designed to safely return oil from the turbocharger back to the engine crankcase. Proper oil drainage is essential for preventing oil pooling in the turbo, reducing backpressure, and protecting turbocharger seals and bearings. Manufactured to precise OEM specifications, the 3925864 turbo oil return line features accurately formed tubing and durable mounting points to ensure proper alignment and unrestricted oil flow. Its heat- and oil-resistant construction withstands the high temperatures and vibration associated with turbocharged diesel operation. This return line is ideal for turbocharger replacement, engine rebuilds, and oil system service . Replacing a worn, restricted, or leaking return line helps prevent oil leakage, smoking issues, and premature turbocharger failure. The 3925864 turbo oil drain line is commonly used in Cummins turbocharged diesel applications , including commercial trucks, industrial equipment, and work vehicles where OE fitment and long-term reliability are critical.