Dorman 785-072D Pipe Plug

Overview of Dorman 785-072D Brass Pipe Plug

The Dorman 785-072D pipe plug is a durable brass component designed for reliable sealing in automotive applications. Engineered with coarse outside threads and a square head drive, this pipe plug is compatible with various Buick, Chevrolet, Oldsmobile, and Pontiac models.

• Material: Brass for corrosion resistance and durability
• Thread Type: Coarse outside thread with 18 threads per inch
• Thread Size: 3/8 inch MNPT (Male National Pipe Thread)
• Head Drive Type: Square head with 0.44 inch tool size
• Dimensions: 0.67 inch outer diameter and 0.75 inch overall length
• Grade: Standard, non-heat hardened
• Package includes one pipe plug

Detailed Product Description

The Dorman 785-072D pipe plug is crafted from brass, providing excellent resistance to corrosion and wear in automotive environments. Its coarse outside threads (3/8 inch MNPT) ensure a secure fit in compatible threaded ports. The square head drive allows for easy installation and removal using standard tools sized at 0.44 inches. With an overall length of 0.75 inches and a thread depth matching the length, this pipe plug is designed to seal openings effectively without the need for additional coatings or heat treatment. This part is SAE standard and suitable for use in a variety of hardware, fasteners, and fittings applications.

Compatible Vehicles and Applications

This pipe plug is compatible with multiple GM makes and models, including Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Specific models include the Buick LeSabre and Century, Chevrolet Caprice and Malibu, Oldsmobile Cutlass and Delta 88, and Pontiac Firebird and Grand Prix, among others. The Dorman 785-072D is ideal for sealing threaded ports in fuel, oil, or coolant systems on these vehicles.

Common Uses and Problem Solving

• Sealing unused or damaged threaded ports in engine or transmission systems
• Preventing fluid leaks in fuel, oil, or coolant lines
• Replacing worn or corroded pipe plugs in Buick, Chevrolet, Oldsmobile, and Pontiac models
• Maintaining system pressure by securely closing off openings
• Providing a reliable seal in coarse-threaded SAE applications

Installation Notes and Tips

• Use a properly sized square drive tool (0.44 inch) for installation to avoid damaging the head
• Apply thread sealant or Teflon tape as needed to ensure leak-free sealing
• Do not overtighten to prevent thread damage or deformation of the brass plug
• Inspect the threaded port for debris or damage before installation
• Compatible with SAE coarse threaded ports sized 3/8 inch MNPT

Quality Assurance and Warranty

Dorman manufactures the 785-072D pipe plug to meet standard automotive hardware specifications. The brass construction ensures corrosion resistance and durability under normal operating conditions. While this part is not heat hardened or zinc coated, it is engineered for reliable performance in compatible GM vehicles. Warranty coverage details should be confirmed through the original product documentation or supplier.