Dorman 090-946 Engine Oil Drain Plug

Mercedes-Benz Oil Drain Plug Replacement

Dorman 090-946 is a direct replacement engine oil drain plug for select Mercedes-Benz applications. It is built to match the original thread pitch and sealing style for a secure oil pan seal during routine service.

• Direct replacement oil drain plug for Mercedes-Benz engines
• Plastic construction with black finish
• Metric design with 28 mm round head
• O-ring seal included for proper sealing
• Conventional drain method with trapezoidal thread type
• OE-style replacement for vehicles such as Mercedes-Benz C300, E450, GLE450, and S500

Product Details

This Dorman oil drain plug, part number 090-946, is engineered as a replacement for a worn or damaged original drain plug. The metric, 28 mm round-head design is intended to match the factory fitment on select Mercedes-Benz models, helping maintain a quality seal at the oil pan. The plastic body and included O-ring seal support standard oil service on applications that use this style of drain plug. This part cross-references Genuine 0029902017 for the same application.

Common Service Issues

• Damaged or stripped drain plug threads
• Oil seepage at the drain plug sealing surface
• Cracked, worn, or missing original plug components
• Improper sealing after an oil change
• Need for a direct replacement on Mercedes-Benz C300, E450, GLE450, and S500 service applications

Installation Notes

Verify the drain plug style, thread type, and head size before installation. Clean the oil pan sealing surface, inspect the O-ring seat, and tighten to the vehicle manufacturer’s specified torque. No special tool is required for installation.

Quality Assurance

Dorman designs this replacement drain plug to match the original equipment thread pitch and sealing requirements for a dependable service fit on select Mercedes-Benz vehicles. Part number 090-946 is part of Dorman’s Oil-Tite program.