Dorman 090-066 oil drain plug for the 1988-1991 Buick Skylark 4-cylinder 2.3L and other vehicles closes the engine's oil drain opening so oil stays in until you drain it. It is engineered to replace a missing or damaged oil drain plug.
- Dorman Autograde line, standard replacement grade
- Steel plug with an M12-1.75 coarse metric thread, 17.8 mm long
- 6-point hex head that takes a 13 mm tool
- Gasket included to help give a secure seal at the drain opening
- Designed and made to strict specifications
Quick facts
- Part: Dorman 090-066 oil drain plug
- Also called: engine oil drain plug
- Fits: 1988-1991 Buick Skylark 4-cylinder 2.3L and other vehicles
- Material: Steel
- Condition: New
Oil dripping at the drain opening, a rounded hex head or damaged threads can mean the plug needs replacing. Before you replace it, rule out other oil leak sources nearby, such as the filter or the pan gasket. One plug goes in the drain opening of each engine.
Fits
This oil drain plug is a direct replacement for the 1988-1991 Buick Skylark 4-cylinder 2.3L, the 1988-1991 Oldsmobile Cutlass Calais 4-cylinder 2.3L and the 1988-1991 Pontiac Grand Am 4-cylinder 2.3L.
Specifications
Fit and size
- Thread: M12-1.75, coarse metric
- Thread diameter: 12 mm
- Length: 17.8 mm
- Head: hex, 13 mm tool size, 6 socket points
- Quantity per vehicle: 1
Build and materials
- Material: Steel
- Bolt grade: 5.8
- Grade: standard replacement
- Gasket: included
- Condition: New
- Country of origin: China
In the box
Five oil drain plugs and five gaskets.
Installation notes
- No special tool is required.
Interchange: DN090-066 · 78-24
22535682
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
DN090-066, 22535682, 78-24
Frequently Asked Questions
Is this Dorman engine oil drain plug the right one for the 1988-1991 Pontiac Grand Am 4-cylinder 2.3L?
Yes. Dorman 090-066 is a direct replacement for the 1988-1991 Pontiac Grand Am 4-cylinder 2.3L.
Does the Dorman drain plug come with a gasket?
Yes. The box holds five oil drain plugs and five gaskets.
What thread and head size does the Dorman Autograde oil drain plug use?
Dorman 090-066 has an M12-1.75 coarse metric thread, 12 mm across, and a hex head that takes a 13 mm tool.
Is the Dorman oil plug listed under number 22535682?
Yes. 22535682 is an interchange number for Dorman 090-066, along with DN090-066 and 78-24.
What signs can mean this oil drain plug is damaged?
Oil spots where the car parks, a rounded hex head or stripped threads seen at an oil change can mean the plug is damaged. A shop can confirm where a leak comes from.
