Dorman - HELP Automatic Transmission Oil Cooler Gasket with Leak Prevention for 2020-21 Buick, 2006-21 Cadillac, 2007-21 GMC PN 66219

Automatic Transmission Oil Cooler Gasket for 2020-21 Buick, 2006-21 Cadillac, 2007-21 GMC that eliminates leaks where the oil cooler line connects to the transmission.

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

Key Features

• Eliminates leaks at oil cooler line connection
• Designed for Automatic Transmission Oil Cooler Gasket
• On-vehicle tested for proper fit and performance
• Part number 66219

Benefits

• Restores transmission cooling system integrity
• Prevents costly transmission repairs from leaks
• Ensures consistent oil temperature control
• Easy installation with OEM fitment

Application

Ideal for vehicle owners experiencing cooler line leaks or preventive maintenance to avoid future failures.

Fitment Notes

• 2020-21 Buick
• 2006-21 Cadillac
• 2007-21 GMC

Why Choose Dorman - HELP?

• 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

• 1 PC

Item Dimensions

• 4.8in x 2.5in x 2.5in, 0.1lbs