81513GMMY DORMAN Expansion Plug Gto Pontiac

Review DORMAN For Pontiac Expansion Plug for PONTIAC GTO 1964–1973

Introducing the Dorman 81513GMMY Expansion Plug, an essential replacement part designed specifically for Pontiac GTO vehicles manufactured between 1964 and 1973. This expansion plug is a crucial component of the cooling system, responsible for sealing the connection between the cylinder head and the engine block.

The Dorman 81513GMMY is an exact fit for the engine years 1965, 1966, 1967, and 1968. Its high-quality construction ensures a precise fit and reliable performance. Made from durable materials, this expansion plug is designed to withstand the rigors of regular use in a high-performance engine.

The Dorman 81513GMMY expansion plug features a gasket design that creates a tight seal between the engine components. This seal is essential for maintaining the cooling system's efficiency and preventing coolant leaks. The plug's design also allows for easy installation, ensuring that the replacement process is as straightforward as possible.

This expansion plug is manufactured to meet or exceed OE specifications, ensuring that it provides the same level of performance and reliability as the original part. Installing the Dorman 81513GMMY expansion plug is an excellent way to restore your Pontiac GTO to its original condition and maintain its long-term performance.

In conclusion, the Dorman 81513GMMY Expansion Plug is a high-quality replacement part designed specifically for Pontiac GTO vehicles manufactured between 1964 and 1973. Its precise fit, durable construction, and efficient design make it an essential component for any restoration or maintenance project. By choosing the Dorman 81513GMMY expansion plug, you can trust that you are investing in a reliable and effective solution for your classic Pontiac GTO.

Dorman 81513GMMY Expansion Plug for 1964-1973 Pontiac GTO: A Comprehensive Analysis

The Dorman 81513GMMY is an aftermarket expansion plug designed for use in 1964-1973 Pontiac GTO engines. This part replaces the original equipment (OE) expansion plug. In this analysis, we will discuss the potential benefits and drawbacks of purchasing this part to help you make an informed decision.

1. Cost-Effective: Aftermarket parts, like the Dorman 81513GMMY, are generally more affordable than OE parts. This can be an attractive option for those working on a budget.

2. Availability: Aftermarket parts are often more readily available than OE parts, especially for older vehicles like the 1964-1973 Pontiac GTO.

3. Performance: The Dorman 81513GMMY is designed to meet or exceed the performance of the OE expansion plug. This can result in improved engine performance and longevity.

4. Easy Installation: The Dorman 81513GMMY is a direct replacement for the OE expansion plug, making installation straightforward and hassle-free.

1. Quality Concerns: Some customers have reported issues with the quality of the Dorman 81513GMMY, such as the plugs not seating properly or leaking.

2. Potential Fitment Issues: While the Dorman 81513GMMY is designed to be a direct replacement, some users have reported issues with the plugs fitting correctly in their engines.

3. Lack of OEM Warranty: Aftermarket parts, like the Dorman 81513GMMY, do not come with the same level of warranty coverage as OE parts. This can be a concern for those who want the peace of mind that comes with an OEM warranty.

The Dorman 81513GMMY expansion plug offers several benefits, including cost-effectiveness, availability, performance, and easy installation. However, it also comes with potential drawbacks, such as quality concerns and fitment issues. Ultimately, the decision to purchase the Dorman 81513GMMY comes down to your individual needs, budget, and tolerance for potential risks.

If you are working on a budget and need a reliable replacement for your Pontiac GTO's expansion plug, the Dorman 81513GMMY is a solid choice. However, if you prioritize OEM quality and warranty coverage, you may want to consider purchasing an OE expansion plug instead. Regardless of your decision, be sure to carefully follow the installation instructions to ensure proper fitment and function.

Details:

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. Trustworthy quality - backed by team of product experts in the USA and more than a century automotive experience. 12 month warranty fitment notes: vehicle: engine: 1970-1973 Pontiac Gto7.5l v8, 1967-1973 Gto6.6l 1964-1966 Gto6.4l v8.

specifications engineblocksam:

• for models: Gto
• for makes: Pontiac
• for years: 1964–1973
• brand: Dorman
• mpn: 81513gmmy
• part type: Plug
• manufacturer warranty: 12 Month Warranty
• notes: Engine Core Plug Package Quantity
• years: 1966 1964 1965 1967 1968 1969 1970 1971 1972 1973
• application: Pontiac Gto Expansion Plug
• product name 2: Engine Core Plug
• cs-sku: 400

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• started: april 11, 2026
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• category: Auto Parts > Car Truck Accessories > Engines > Blocks