Dorman 090-088CD Engine Oil Drain Plug

Engine Oil Drain Plug for BMW and Mercedes-Benz

Dorman 090-088CD is a direct replacement engine oil drain plug for vehicles that use an M12x1.5 metric drain thread. It is built from carbon steel with a 17 mm hex head and includes a gasket for a proper seal during oil service.

Use this drain plug when the original plug is worn, damaged, or no longer sealing correctly. The thread pitch is matched for a quality fit on many BMW and Mercedes-Benz applications, including BMW 330i, BMW X5, and Mercedes-Benz C300 models.

Key Features

• Direct replacement oil drain plug for engine oil service
• Carbon steel construction with silver finish
• M12x1.5 metric thread size and 17 mm hex head
• Gasket included for sealing at the drain point
• No special tool required for installation
• Conventional drain method with pilot point design

Detailed Description

This Dorman engine oil drain plug is engineered to match the original thread pitch and sealing interface, helping restore a secure drain connection after oil changes. The M12x1.5 metric sizing, 17 mm head, and included gasket make it a practical replacement for a wide range of BMW and Mercedes-Benz vehicles. Part number 090-088CD is also referenced for the same application under Monroe Shocks & Struts 263-931 and 652366.

Compatible With many BMW 3 Series, 5 Series, X Series, M models, and select Mercedes-Benz sedans and SUVs across multiple model years. It also cross-references OE-style numbers used in the same drain plug application.

What It Helps Solve

• Oil leaks from a worn or damaged drain plug
• Stripped or poorly sealing drain threads
• Improper fit from the wrong metric thread size
• Service issues caused by a missing or damaged gasket
• Repeated oil seepage after routine maintenance

Installation Notes and Tips

• Confirm the vehicle uses M12x1.5 metric drain threads before installation.
• Inspect the oil pan threads and sealing surface for damage before replacing the plug.
• Install by hand first to avoid cross-threading, then tighten with a 17 mm socket.
• Replace the gasket during service to help maintain a proper seal.
• Verify there are no leaks after the engine oil change is complete.

Quality Assurance

Dorman manufactures this replacement drain plug as a direct-fit service part for common BMW and Mercedes-Benz oil pan applications. The matched thread pitch and included gasket support a secure, service-ready seal for routine maintenance.