Dorman 090-066CD Engine Oil Drain Plug

Dorman Oil Drain Plug for M12x1.75 Applications

This Dorman 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 service on select Buick, Oldsmobile, and Pontiac models.

• Direct replacement engine oil drain plug
• Metric thread size: M12x1.75
• 13 mm hex head for standard service tools
• Carbon steel construction with silver finish
• Includes gasket for sealing at the oil pan
• Conventional drain method with flanged hex design
• Fits select 1988-1991 Buick Skylark, Oldsmobile Cutlass Calais, and Pontiac Grand Am applications

Product Details

Dorman part number 090-066CD is part of the Oil-Tite program and is engineered as an OE-style replacement for metric oil pan drain service. The plug uses a 12 mm thread diameter with 1.75 thread pitch, a 13 mm hex head, and a gasket seal to help restore proper closure at the drain point. It is a non-magnetic carbon steel drain plug with a flanged hex head and conventional drain design. This part cross-references 22535682 for the same application.

Common Repair Uses

• Replacing a stripped or rounded oil drain plug
• Restoring a leaking oil pan drain seal
• Correcting damaged threads at the drain opening
• Servicing vehicles that require an M12x1.75 drain plug
• Addressing oil seepage after prior drain service

Installation Notes

Verify the thread size and pitch before installation to confirm the correct fit. Clean the drain opening and sealing surface, then install the plug with the included gasket and tighten with a 13 mm hex socket. No special tool is required.

Quality Assurance

Dorman designs this replacement drain plug to match original equipment thread specifications for proper sealing and service fit. The Oil-Tite line focuses on direct-fit oil service hardware for common repair needs.

• Fits 1988-1991 Buick Skylark, N/A
• Fits 1988-1991 Oldsmobile Cutlass Calais, N/A
• Fits 1988-1991 Pontiac Grand Am, N/A