Lycoming Cylinder #1 Oil Drain Tube Assembly | Fits Select O-320, O-360, O-540, IO-320, IO-360 & IO-540 Engines

The 68759 Oil Drain Tube Assembly is a precision-formed replacement tube designed for Cylinder #1 on select Lycoming aircraft engines equipped with external cylinder oil drain systems. Engineered to provide efficient oil return from the cylinder head to the crankcase, this tube helps maintain proper engine lubrication while preventing leaks caused by worn, damaged, or corroded oil drain tubes.

Manufactured from corrosion-resistant steel tubing, the 68759 is built to withstand the heat, vibration, and demanding operating conditions found in aircraft engines. It is an ideal replacement during routine maintenance, engine repair, or overhaul.

Features

• Direct replacement for Cylinder #1 oil drain tube
• Precision-formed for proper fit and routing
• Corrosion-resistant steel construction
• Promotes efficient oil return to the crankcase
• Leak-resistant design for dependable performance
• Ideal for maintenance, repair, and engine overhaul

Specifications

• Part Number: 68759
• Description: Cylinder #1 Oil Drain Tube Assembly
• Cylinder Location: #1
• Material: Corrosion-resistant steel
• Condition: New

Common Applications

Fits selected Lycoming engines equipped with external cylinder oil drain tube assemblies, including:

• AEIO-360: -B1G6, -H1A
• AEIO-540: -D4A5, -D4B5
• AIO-320: -B1B, -C1B
• HO-360: -B1A, -B1B, -C1A
• IO-320: -B1A, -B1C, -C1A, -D1A, -D1B, -E1A, -E1B, and additional models
• IO-360: -B1A, -B1B, -B1D, -B1E, -B1F, -B1G6, -B2, and additional models
• IO-540: -C1B5, -C4B5, -C4C5, -C4D5D, -D4A5, -G1A, and additional models
• LIO-320: -B1A, -C1A
• LO-360: -A1G6D, -A1H6
• O-320: -A2A, -A2B, -A2C, -A2D, -A3A, -A3B, -A3C, and additional models
• O-360: -A1A, -A1AD, -A1C, -A1D, -A1F6, -A1F6D, and additional models
• O-540: -A1A, -A1A5, -A1B5, -A1C5, -A1D, -A1D5, and additional models
• TIO-540: -C1A, -E1A, -G1A, -H1A, -AA1AD, -AB1AD, and additional models