HomeEngine > Hardware, Fasteners and FittingsDorman 090-066CD Engine Oil Drain Plug
Part #: 090-066CD

Dorman 090-066CD Engine Oil Drain Plug

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12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick, Oldsmobile, and Pontiac, Skylark, Cutlass Calais, and Grand Am
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Reliable Engine Oil Drain Plug for Buick, Oldsmobile, and Pontiac

The Dorman 090-066CD engine oil drain plug is designed to provide a secure and leak-free seal for your vehicle's oil pan. Engineered for select Buick Cutlass Calais, Oldsmobile, and Pontiac Grand Am and Skylark models, this drain plug ensures proper oil drainage and maintenance without the need for special tools.

Key Features of the Dorman 090-066CD Oil Drain Plug

  • Constructed from durable carbon steel for strength and longevity
  • Metric M12x1.75 thread size with a 1.75 thread pitch for precise fitment
  • Flanged hex head design with a 13 mm hex drive for easy installation and removal
  • Includes a gasket to ensure a tight, leak-resistant seal
  • Compatible with conventional oil drain methods
  • No special tools required for installation
  • Silver color finish for corrosion resistance
  • Bolt grade 5.8 for reliable fastening

Detailed Description of the Dorman Engine Oil Drain Plug

This Dorman engine oil drain plug (part number 090-066CD) is specifically designed for metric-threaded oil pans found in various Buick, Oldsmobile, and Pontiac vehicles, including the Cutlass Calais, Grand Am, and Skylark. Made from carbon steel, it offers durability and resistance to wear under typical engine conditions. The flanged hex head with a 13 mm hex drive allows for straightforward installation and removal using standard hand tools. The included gasket provides a secure seal to prevent oil leaks, maintaining engine cleanliness and performance. Its conventional drain method design fits seamlessly with standard oil change procedures.

Common Applications and Issues Addressed

  • Replacement of worn or stripped oil drain plugs
  • Prevention of oil leaks caused by damaged or missing gaskets
  • Ensuring proper oil drainage during routine maintenance
  • Addressing cross-threading or damaged threads in the oil pan
  • Upgrading to a reliable OEM-quality drain plug for Buick Cutlass Calais, Oldsmobile, and Pontiac models

Installation Notes and Tips

  • Verify compatibility with your vehicle’s make, model, and year before installation
  • Use a 13 mm hex socket or wrench for proper torque application
  • Replace the gasket each time the drain plug is removed to maintain a leak-free seal
  • Do not overtighten to avoid damaging the oil pan threads
  • Inspect the drain plug and gasket for wear or damage during oil changes

Quality Assurance and Warranty Information

Dorman manufactures the 090-066CD engine oil drain plug to meet or exceed OEM specifications for fit, form, and function. The carbon steel construction and included gasket ensure reliable performance under normal operating conditions. While specific warranty details may vary, Dorman products typically come with a limited warranty against defects in material and workmanship, providing confidence in your replacement part.

BrandDorman
Part Number090-066CD
Bolt Grade5.8
ColorSilver
Describe TypeFlanged Hex
Drain MethodConventional
Gasket Or Seal IncludedYes
Gasket TypeGasket
Head Drive TypeHex
Head Size (SAE/Metric)13 mm
Length0.5
Length0.7
MagneticNo
MaterialCarbon Steel
Oversized ThreadNo
Package Contents1 Drain Plug; 1 Gasket
ProgramOil-Tite
SAE or MetricMetric
Socket Points6
Special Tool RequiredNo
Thread Diameter12
Thread Pitch1.75
Thread SizeM12x1.75
Thread TypeMetric
Threads Per Inch0

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991BuickSkylark2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1991OldsmobileCutlass Calais2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1991PontiacGrand Am2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1990BuickSkylark2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1990OldsmobileCutlass Calais2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1990PontiacGrand Am2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1989BuickSkylark2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1989OldsmobileCutlass Calais2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1989PontiacGrand Am2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1988BuickSkylark2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1988OldsmobileCutlass Calais2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit
1988PontiacGrand Am2.3LL4N/AM12 x 1.75 Thread; Shank Length (In): 0.5 in; Package Quantity: 1; Dorman - AutoGrade - Oil-Tite! - Clamshell; Packaging Type: Clamshell; Thread Size: M12x1.75; Head Size (SAE/Metric): 13 mm; Program: Oil-Tite; Direct Fit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

22535682

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.