Dorman - Autograde Engine Oil Drain Plug Standard M12-1.75 Head Size 13mm for Buick Skylark 1991-88 Oldsmobile Cutlass Calais 1991-88 Pontiac Grand Am 1991-88

Engine oil drain plug for Buick Skylark 1991-88, Oldsmobile Cutlass Calais 1991-88, Pontiac Grand Am 1991-88 that replaces a missing or damaged factory plug.

Built to meet the manufacturer’s design intent for reliable service.

Key Features

• M12-1.75 thread size
• Head size 13mm
• Standard design matches OEM plug
• Compatible with Buick Skylark, Oldsmobile Cutlass Calais, Pontiac Grand Am (1991‑88)

Benefits

• Ensures a secure seal to prevent oil leaks
• Restores engine performance by maintaining proper oil pressure
• Easy installation with standard tools
• Reduces risk of costly repairs from oil loss

Application

This part is ideal for owners who need a reliable replacement for their 1991‑88 Buick Skylark, Oldsmobile Cutlass Calais or Pontiac Grand Am to keep the engine running smoothly.

Fitment Notes

• Fits Buick Skylark 1991-88
• Fits Oldsmobile Cutlass Calais 1991-88
• Fits Pontiac Grand Am 1991-88

Why Choose Dorman - Autograde?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct‑fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What’s in the Box

• 2 PC Engine Oil Drain Plug

Item Dimensions

• 4.6in x 1.8in x 1.0in, 0.1lbs