78FC94H DORMAN Expansion Plug 200 Audi Quattro

Review DORMAN Expansion Plug Fits Audi for AUDI QUATTRO 200 1989–1991

The Dorman 78FC94H Expansion Plug is an essential replacement part designed specifically for select Audi 200 Quattro models produced between 1989 and 1991. This plug plays a crucial role in the cooling system, ensuring efficient engine operation and optimal temperature maintenance.

This expansion plug is manufactured with high-quality materials to provide durability and reliability. It features an oval shape and a threaded design, allowing it to securely connect to the engine block. The plug also includes a rubber gasket that seals the connection, preventing coolant leaks and ensuring a proper seal.

The Dorman 78FC94H Expansion Plug is engineered to meet or exceed OEM specifications, ensuring a perfect fit and reliable performance. The plug's design allows it to expand and contract with the cooling system as temperatures change, preventing damage to the engine and maintaining the optimal cooling system function.

Installing the Dorman 78FC94H Expansion Plug is a straightforward process. Simply remove the old plug, clean the threads, and apply a new sealant if necessary. Then, screw in the new expansion plug by hand, followed by tightening it with a wrench to the recommended torque specification.

By using the Dorman 78FC94H Expansion Plug, Audi 200 Quattro owners can maintain the reliability and performance of their vehicles while saving money compared to dealership prices for OEM parts. This expansion plug is a cost-effective solution for keeping your Audi running smoothly and efficiently.

The Dorman 78FC94H expansion plug is a replacement part designed for Audi 200 Quattro vehicles manufactured between 1989 and 1991. This part is essential for the cooling system as it allows the coolant to expand when the temperature rises. Here are some pros and cons of buying this specific expansion plug:

1. OEM Equivalent: The Dorman 78FC94H expansion plug is designed to be an OEM (Original Equipment Manufacturer) equivalent, ensuring a proper fit and function in the cooling system of the Audi 200 Quattro.

2. Cost-effective: Compared to purchasing an original Audi part, the Dorman expansion plug is often more cost-effective for vehicle owners seeking to save money on repairs.

3. High-quality materials: The expansion plug is made of high-quality materials to ensure durability and longevity, reducing the likelihood of needing future replacements.

1. Potential fitment issues: Although the Dorman 78FC94H expansion plug is designed to be an OEM equivalent, there have been reports of it not fitting perfectly in some vehicles. This could potentially lead to leaks or other issues.

2. Limited availability: Since the Dorman 78FC94H expansion plug is not a genuine Audi part, it may be less readily available at local dealerships or repair shops. Vehicle owners might need to order it online or from a specialty parts supplier.

3. Installation complexity: Installing the expansion plug may require some mechanical expertise, as it involves draining the coolant system and replacing the old expansion plug with the new one.

The Dorman 78FC94H expansion plug is a cost-effective and high-quality replacement option for the cooling system of Audi 200 Quattro vehicles manufactured between 1989 and 1991. However, potential fitment issues and limited availability are important considerations. If you are comfortable with the installation process and trust the reliability of Dorman parts, then this expansion plug could be a suitable choice for your vehicle repair needs. On the other hand, if you prefer an OEM part or are concerned about potential fitment issues, it may be worth considering purchasing an original Audi expansion plug or consulting with a trusted mechanic for their professional opinion.

Details:

Trustworthy quality - backed by team of product experts in the USA and more than a century automotive experience. Condition: new vehicle fitment, 1989 - 1991 Audi 200 Quattro. Durable construction - this part is made from quality materials to ensure reliable performance and long service life. Ideal solution - this plug is a reliable replacement for an original part that missing or has failed due to fatigue.

specifications engineblocksam:

• for models: 200, Quattro
• for makes: Audi
• for years: 1989–1991
• brand: Dorman
• mpn: 78fc94h
• part type: Plug
• part details: Engine Core Plug 36.5 Mm; As Required; Package Quantity
• fit model: 200 Quattro
• fit years: 1991 1989 1990
• cs-sku: 400

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• category: Auto Parts > Car Truck Accessories > Engines > Blocks

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• started: may 20, 2025
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