14066310 GM Expansion Plug Engine

Review GM Expansion Plug/engine Plug

The GM Part Number 14066310 is an expansion plug, also known as an engine coolant thermostat housing gasket or a thermostat housing seal, designed for select General Motors vehicles. This essential engine component is designed to prevent coolant leakage around the thermostat housing in the engine compartment.

The expansion plug is manufactured from high-quality materials, including a durable elastomeric material for sealing properties and a sturdy metal shell for structural support. The gasket's design allows it to withstand the extreme temperatures and pressure fluctuations of engine coolant, ensuring reliable engine performance.

This expansion plug features a multi-layered construction that provides excellent sealing properties. The gasket's inner layer is specially formulated to ensure a tight seal against the thermostat housing, while the outer layer offers a secure bond to the engine block. This design helps prevent coolant leakage, which can lead to costly engine repairs and decreased performance.

The GM 14066310 expansion plug is a direct factory replacement for select GM vehicles. It comes in a convenient, reusable packaging that makes for easy installation. The gasket is designed to fit precisely into the engine compartment, ensuring a straightforward installation process.

Installing this expansion plug is a crucial maintenance step for maintaining the optimal performance and longevity of your GM vehicle's engine cooling system. Regularly replacing this gasket can help prevent costly repairs and potential engine damage caused by coolant leaks.

To install the expansion plug, simply remove the old gasket, clean the surfaces, and apply a thin coat of high-temperature RTV silicone sealant. Carefully position the new expansion plug in place, ensuring a proper seal, and secure it with the provided hardware.

In conclusion, the GM Part Number 14066310 expansion plug is an essential engine component that helps prevent coolant leakage around the thermostat housing. It is manufactured from high-quality materials and designed for a precise fit in select GM vehicles. This expansion plug is a direct factory replacement and comes with a convenient, reusable packaging for easy installation. Regularly replacing this gasket is crucial for maintaining optimal engine performance and longevity.

Pros and Cons of Buying a GM 14066310 Expansion Plug/Engine Plug

a. OEM Part: This plug is an Original Equipment Manufacturer (OEM) part, which means it is manufactured by the same company that originally produced it for the car. Using an OEM part ensures a perfect fit and optimal performance.

b. High-quality Material: The GM 14066310 expansion plug is made of high-quality material designed to withstand the harsh conditions of an engine environment, ensuring durability and longevity.

c. Improved Engine Performance: A faulty engine plug can lead to poor engine performance. Replacing it with a new OEM part can help restore optimal engine performance, improving fuel efficiency and reducing emissions.

d. Prevent Costly Repairs: A faulty engine plug can lead to more significant engine problems, resulting in expensive repairs. By replacing the engine plug proactively, you can save money in the long run.

a. Cost: The GM 14066310 expansion plug can be an expensive replacement part, especially when compared to aftermarket alternatives. However, the cost is justified due to its OEM quality and durability.

b. Availability: Depending on the location and availability, it might be difficult to find this specific part at local auto parts stores. It may be necessary to order it online or from a dealership.

The decision to buy a GM 14066310 expansion plug/engine plug ultimately depends on the importance you place on using an OEM part, the availability of the part, and your budget. While the cost may be higher than aftermarket alternatives, the benefits of using a high-quality OEM part, including optimal performance, durability, and peace of mind, may outweigh the cost. If budget is a concern, consider purchasing an aftermarket alternative, but keep in mind that it may not offer the same level of performance and durability as an OEM part.

If you prioritize using an OEM part for optimal performance and durability, it is recommended to purchase the GM 14066310 expansion plug/engine plug. If cost is a concern, consider purchasing an aftermarket alternative, but be aware that it may not provide the same level of performance and durability as an OEM part. Always ensure that the aftermarket part is compatible with your vehicle before making a purchase.

Details:

14066310: Gm 14066310 expansion plug/engine plug. High-value items are usually sent with signature-delivery requirements. Request a return. Found a better price.

Changed my mind. Add details like I tried to install this part, and it didn't fit. Just didn't like it. See below for instructions.

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specifications engineblocksam:

• brand: Gm
• mpn: 14066310
• part type: Plug Engine
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• fitment footnotes: Location-engine Block;vendor;

payments engineblocksam:

• credit card: diners-club
• wallet: paypal
• other

returns engineblocksam:

• paid by: buyer
• time: 30 days
• policy: returns accepted

seller engineblocksam:

• # reviews: 13157
• city: garland, texas
• rating: 96.3%

offer engineblocksam:

• sold #: 22
• in stock #: 5
• prices: $21.90–$22.07
• item condition: New
• started: march 14, 2025
• availability: in stock
• options: ship-to-home

shipping engineblocksam:

• class: standard
• transit: 17-27 days
• service: standard
• type: fixed

general engineblocksam:

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