Dorman 090-011CD Engine Oil Drain Plug

Dorman Oil Drain Plug for Jeep Applications

The Dorman 090-011CD engine oil drain plug is a direct replacement for a worn or damaged original drain plug. It is built to match the original thread pitch for a secure seal and reliable oil pan service on select Jeep CJ5 and Wagoneer models.

• Direct replacement engine oil drain plug for OE-style fit
• Carbon steel construction with silver finish
• Standard 7/8 in-18 thread size and 1-1/8 in hex head
• Includes gasket for sealing at the oil pan
• Conventional drain method with standard thread type
• Fits select 1962-1971 Jeep CJ5 and 1963-1967 Jeep Wagoneer applications

Product Details

Built under Dorman’s Oil-Tite program, part number 090-011CD is a SAE drain plug with a 0.875-inch thread diameter, 18 threads per inch, and a 0.63-inch shank length. The hex-drive head uses a 1-1/8 inch wrench size, and the included gasket helps support a proper seal during oil changes. This part cross-references Monroe Shocks & Struts (e.g., 639979, 2135921) for the same application.

What It Helps Fix

• Stripped or worn drain plug threads
• Oil seepage at the drain plug sealing surface
• Damaged plug heads that no longer accept a wrench properly
• Incorrect replacement plug size on Jeep CJ5 or Wagoneer oil pans
• Routine oil service on older Jeep engines using a 7/8 in-18 drain plug

Installation Notes and Tips

Verify the oil pan thread size before installation and match the plug to the existing 7/8 in-18 specification. Clean the drain opening and sealing surface before tightening the plug with a 1-1/8 inch hex tool. For best results, replace the gasket during service and tighten to the vehicle manufacturer’s recommended torque specification.

Quality Assurance

Dorman manufactures this replacement drain plug as an OE-style service part for direct-fit repair on listed Jeep applications. Part number 090-011CD is engineered to match the original thread pitch and sealing requirements for dependable oil pan service.