Elring 774.390 Engine Oil Drain Plug

Elring 774.390 Engine Oil Drain Plug

Elring 774.390 is an engine oil drain plug built for service on a wide range of BMW applications and select GMC Sierra 2500 HD models. It features a male hex head, 17 mm spanner size, and an integrated seal ring for a secure oil pan drain service.

Key Features

• Male hex bolt head for straightforward removal and installation
• 17 mm spanner size for common service tools
• Thread size: M 12x1,5x18
• Includes seal ring for drain plug sealing
• OE-style replacement for routine oil pan service
• Part number 774.390 for accurate ordering and lookup

Product Details

This Elring oil drain plug is used during engine oil changes to close the oil pan drain opening after service. The M 12x1,5x18 thread specification and 17 mm hex design make it a direct-fit service part for many BMW 320i, 325i, 525i, X3, X5, Z3, and M3 applications, along with other listed vehicles. It also cross-references Febi-Bilstein 06564 for the same application.

For buyers searching for an engine oil drain plug for BMW 325i, BMW 525i, or BMW X3 service work, Elring 774.390 provides the correct thread profile and sealing style needed for a proper drain plug replacement. The seal ring helps support a tight closure at the drain point when the plug is installed to specification.

Common Service Issues It Can Address

• Damaged or rounded drain plug hex head
• Worn drain plug threads
• Oil seepage at the drain point
• Incorrect thread size from a previous repair
• Service delays caused by a missing or mismatched drain plug

Installation Notes and Tips

Confirm the thread size, hex size, and sealing style before installation. Clean the drain opening and sealing surface, then install the plug with the seal ring in place and tighten to the vehicle manufacturer’s specification. Verify fitment carefully on BMW 320i, 330i, 528i, 530i, X3, X5, Z3, and related listed models before service.

Quality Assurance

Elring is an established OE-focused engine sealing and hardware brand. Part number 774.390 is specified with a seal ring and standard service dimensions to support accurate fitment and repeatable oil drain maintenance.