Dorman 65221 Engine Oil Drain Plug - Left or Right

Engine Oil Drain Plug for Subaru and Porsche

Dorman 65221 is a direct replacement engine oil drain plug for vehicles that use an M20-1.50 fine thread and a 17 mm hex head. It is built from steel with a silver finish and includes a gasket seal for a proper oil pan seal during service.

Use this Dorman 65221 drain plug when the original plug is stripped, worn, or damaged and you need a precise thread match for a clean, conventional oil drain. It is a straightforward OE-style replacement for Subaru WRX, WRX STI, Forester, Outback, Legacy, Impreza, Tribeca, Baja, and select Porsche applications.

Key Features

• Direct replacement engine oil drain plug
• Steel construction with silver finish
• M20-1.50 metric fine thread
• 17 mm hex head for standard service tools
• Gasket seal included for sealing at the drain point
• Non-magnetic design
• No special tool required

Detailed Description

This oil drain plug is engineered to match the original thread pitch and sealing style used on a range of Subaru and Porsche engines. The fine-thread M20 x 1.50 design helps maintain a secure fit in the oil pan or crankcase, while the included gasket supports a reliable seal during routine oil changes. Dorman 65221 is a practical replacement when the factory plug no longer tightens correctly or shows signs of wear from repeated service.

Compatible With applications such as 2017-2021 Subaru WRX STI, 2013-2016 Subaru WRX, 1998-2013 Subaru Forester, 2014-2019 Subaru Outback, and 2001-2005 Porsche 911 left crankcase service points. This part cross-references Continental 65221 for the same application.

What It Helps Solve

• Stripped or rounded drain plug threads
• Oil seepage at the drain point
• Damaged plug heads that no longer accept a 17 mm socket
• Worn sealing surfaces from repeated oil changes
• Replacement needs for M20-1.50 drain plug applications

Installation Notes and Tips

Verify thread size, pitch, and head size before installation. This plug uses a 17 mm hex head and standard conventional drain service, with no special tool required. Clean the sealing surface before installing the new plug and gasket, then tighten to the vehicle manufacturer’s specified torque.

Body fitment examples include Fits 2017-2021 Subaru WRX STI, N/A; Fits 2013-2016 Subaru WRX, N/A; Fits 1998-2013 Subaru Forester, N/A; Fits 2014-2019 Subaru Outback, N/A; Fits 1990-2019 Subaru Legacy, N/A; Fits 1993-2014 Subaru Impreza, N/A; Fits 2008-2014 Subaru Tribeca, N/A; Fits 2003-2006 Subaru Baja, N/A; Fits 2001-2005 Porsche 911, Left; Fits 1978-1998 Porsche 911, Left; Fits 2004-2005 Porsche 911, Left; Fits 1993-1995 Porsche 928, N/A; Fits 1980-1991 Porsche 928, N/A; Fits 1992-1995 Porsche 968, Right; Fits 1983-1991 Porsche 944, N/A; Fits 1987-1988 Porsche 924, Right; Fits 1987 Isuzu Pickup, N/A; Fits 1976-1987 Subaru Standard, N/A; Fits 1976-1983 Honda Accord, N/A; Fits 1973-1983 Honda Civic, N/A; Fits 1982 Chevrolet LUV, N/A; Fits 1975 Chevrolet LUV, N/A; Fits 1979-1982 Honda Prelude, N/A.

Quality Assurance

Dorman manufactures this replacement drain plug to match the original equipment thread pitch and sealing requirements for the listed applications. The steel construction and included gasket support dependable service during routine maintenance.