Lycoming Oil Drain Hose (3/8" I.D. x 2.5")

The STD-1821 Oil Drain Hose is a high-quality oil-resistant hose designed for use in Lycoming engine cylinder oil drain tube assemblies. Manufactured to withstand the demanding temperatures and oil exposure found in aircraft engines, this hose provides a secure, leak-resistant connection between the cylinder drain tubes and fittings.

Measuring 3/8-inch inside diameter by 2.5 inches in length, the STD-1821 is commonly used when replacing worn, hardened, or deteriorated oil drain hoses during routine maintenance, engine repair, or overhaul.

Drawing # 6

Features

• Designed for Lycoming cylinder oil drain tube assemblies
• Oil- and heat-resistant construction
• 3/8" I.D. × 2.5" length
• Provides a secure, leak-free connection
• Flexible for easy installation
• Ideal for maintenance, repair, and overhaul

Specifications

• Part Number: STD-1821
• Description: Oil Drain Hose
• Inside Diameter: 3/8 in.
• Length: 2.5 in.
• Material: Oil- and heat-resistant rubber
• Condition: New

Common Applications

Used on many Lycoming 4-cylinder and 6-cylinder engines equipped with external cylinder oil drain tube assemblies, including selected models of:

• O-320
• IO-320
• O-360
• IO-360
• O-540
• IO-540
• AEIO-540
• TIO-540
• HIO-540

Note: Always verify fitment using your engine's configurations may vary by engine model and serial number.