99472NMDX DORMAN Expansion Plug Buick Skylark

Review DORMAN For Buick Expansion Plug for BUICK SKYLARK 1967–1970

The Dorman 99472NMDX Expansion Plug is specifically designed for the 1967-1968 and 1970 Buick Skylark models. This essential automotive part is an important component of the engine's ignition system, responsible for delivering the high-voltage discharge from the ignition coil to the spark plugs to create the spark needed to ignite the fuel in the engine cylinders.

This expansion plug features a robust design with a sturdy porcelain insulator that ensures a reliable seal between the cylinder head and the plug. The insulator is also engineered with a ribbed design to promote even heat distribution and prevent hot spots. The metal shell is nickel-plated for durability and corrosion resistance, ensuring long-lasting performance.

The center electrode of the expansion plug is made of a high-quality, heat-resistant material, such as iridium or platinum, to provide superior ignition performance and longevity. The tapered design of the electrode ensures proper contact with the spark plug electrode for optimal spark formation and combustion.

The Dorman 99472NMDX Expansion Plug is engineered to meet or exceed OEM specifications, ensuring a precise fit and reliable performance. It is also backed by a comprehensive warranty to give you peace of mind and confidence in your purchase. Installing this expansion plug is a straightforward process, making it a convenient and cost-effective solution for maintaining the ignition system in your 1967-1968 or 1970 Buick Skylark.

Dorman 99472NMDX Expansion Plug for 1967-1968, 1970 Buick Skylark: A Comprehensive Analysis

The Dorman 99472NMDX is an aftermarket expansion plug designed for use in 1967-1968 and 1970 Buick Skylark vehicles. This component is essential for maintaining the cooling system in optimal condition. In this analysis, we will examine the potential advantages and disadvantages of purchasing this Dorman expansion plug.

1. Cost-effective: The Dorman 99472NMDX offers a more affordable alternative to OEM (Original Equipment Manufacturer) expansion plugs.

2. Quality: Dorman is a reputable brand known for producing high-quality aftermarket parts. This expansion plug is no exception, providing reliable performance.

3. Universal fit: The Dorman 99472NMDX is designed to fit various Buick Skylark models, ensuring compatibility.

4. Easy installation: The expansion plug can be replaced without much difficulty, saving time and labor costs.

1. Not covered by manufacturer's warranty: Unlike OEM parts, aftermarket parts, including the Dorman 99472NMDX, are typically not covered under a manufacturer's warranty.

2. Potential for slight differences: Although the Dorman expansion plug is designed to function similarly to the OEM part, there might be slight differences in fit or performance.

3. Lack of OEM certification: The Dorman 99472NMDX does not carry OEM certification, which some vehicle owners may prefer.

The Dorman 99472NMDX expansion plug offers several advantages, including cost-effectiveness, quality, universal fit, and ease of installation. However, it also comes with some disadvantages, such as the lack of a manufacturer's warranty and potential slight differences from OEM parts.

Based on the analysis, if you are looking for an affordable and reliable alternative to the OEM expansion plug for your 1967-1968 or 1970 Buick Skylark, the Dorman 99472NMDX is an excellent choice. However, if you prioritize having a manufacturer's warranty or prefer the exact OEM fit and performance, you may consider opting for the original part. Ultimately, the decision depends on your personal preferences and budget.

Details:

Ideal solution - this plug is a reliable replacement for an original part that missing or has failed due to fatigue. Durable construction - this part is made from quality materials to ensure reliable performance and long service life. 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 Buick Skylark7.5l v8, 1967-1968 Skylark6.6l v8.

specifications engineblocksam:

• for models: Skylark
• for makes: Buick
• for years: 1967–1970
• brand: Dorman
• mpn: 99472nmdx
• part type: Plug
• manufacturer warranty: 12 Month Warranty
• notes: Engine Core Plug 2 In.; 4 Required; Package Quantity
• years: 1967 1968 1970
• application: Buick Skylark Expansion Plug
• product name 2: Engine Core Plug
• cs-sku: 400

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• city: tempe, arizona
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• sold #: 9
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• item condition: New
• started: april 20, 2026
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