Elring 877.870 Engine Oil Drain Plug

Elring 877.870 Engine Oil Drain Plug

Elring 877.870 is an engine oil drain plug built for BMW and Rolls-Royce applications that use an M18 x 1.5 thread with a 12 mm length and hexagon socket drive. It includes a seal ring for a secure oil pan seal during routine oil service.

Key Features

• Hexagon socket bolt head/nut design for service access
• Thread size: M 18x1,5x12
• Includes seal ring
• Engine oil drain plug for BMW and Rolls-Royce applications
• Elring part number 877.870 for direct reference

Detailed Description

This Elring oil drain plug is specified for a wide range of BMW and Rolls-Royce vehicles, including BMW 650i, 750i, X5, X6, and M760i xDrive applications, as well as Rolls-Royce Ghost, Phantom, Wraith, and Dawn models. The M18 x 1.5 thread and 12 mm length are important details for matching the correct drain port, while the hexagon socket design supports straightforward removal and installation during oil changes. The included seal ring helps create a proper sealing surface at the oil pan.

This part cross-references Febi-Bilstein 31702 for the same application.

What It Is Used For

• Replacing a worn or damaged oil drain plug
• Restoring a proper seal at the oil pan drain point
• Addressing stripped or rounded drain plug drive surfaces
• Servicing BMW and Rolls-Royce engines with M18 x 1.5 drain threads
• Supporting clean engine oil changes on vehicles such as BMW 650i, X5, and X6

Installation Notes and Tips

• Verify thread size, pitch, and length before installation: M18 x 1.5 x 12 mm
• Confirm the drain plug drive type matches your service tool: hexagon socket
• Inspect the sealing surface and replace the seal ring if the old one is damaged or flattened
• Use the vehicle-specific drain torque specification during installation
• Check the drain area for leaks after the first heat cycle

Quality Assurance

Elring is a recognized OE-focused brand in engine sealing and hardware applications. Part number 877.870 is built to match the listed fitment and service specifications for BMW and Rolls-Royce oil drain plug applications.