44694RMTZ DORMAN Somerset Expansion Plug Rear Buick

Review DORMAN For Buick Somerset Expansion Plug Rear 3.0l V6 for BUICK 1986–1987

The Dorman 44694 RMTZ Expansion Plug for the 1986-1987 Buick Somerset with a 3.0L V6 engine is an essential component of your vehicle's ignition system. This expansion plug is meticulously designed to deliver optimal performance and reliability, ensuring that your engine runs smoothly and efficiently.

The RMTZ expansion plug is a direct replacement for the original part and is engineered to fit perfectly in your engine. It features a robust and durable design, with a high-temperature ceramic insulator that ensures even heat distribution and longer service life. The insulator is also coated with a high-temperature silicone seal to prevent leakage and ensure a secure seal.

The Dorman 44694 RMTZ expansion plug comes with a new, high-performance spark plug center electrode that delivers a strong, dependable spark for efficient combustion. The electrode is made of premium material, ensuring excellent conductivity and longevity. The plug also features a corrosion-resistant plating on the ground electrode to protect against the damaging effects of moisture and other contaminants.

This expansion plug is easy to install, and Dorman provides clear, easy-to-follow instructions to ensure a hassle-free experience. The plug is also backed by Dorman's standard one-year limited warranty, giving you peace of mind and confidence in your purchase.

If you're looking for a reliable, high-quality expansion plug for your 1986-1987 Buick Somerset with a 3.0L V6 engine, the Dorman 44694 RMTZ is an excellent choice. It's designed to meet or exceed OEM specifications, ensuring that your engine runs at its best and that you can enjoy a smooth, worry-free driving experience.

Dorman 44694RMtz for 1986-1987 Buick Somerset: A Worthy Expansion Plug Upgrade?

The Dorman 44694RMtz is a replacement expansion plug designed for the rear 3.0L V6 engines in 1986 and 1987 Buick Somerset vehicles. Like all automotive components, this part comes with its advantages and disadvantages. In this analysis, we will discuss these pros and cons to help you make an informed decision about whether to invest in this upgrade.

1. Enhanced Performance: The Dorman 44694RMtz expansion plug is designed to provide improved combustion efficiency, leading to better engine performance and increased power output.

2. Durability: This replacement plug is engineered to withstand the harsh operating conditions of an internal combustion engine, ensuring a long service life.

3. OEM-equivalent Quality: Dorman is a reputable manufacturer known for producing high-quality aftermarket parts, making this expansion plug a reliable alternative to the original equipment.

4. Cost-Effective: The Dorman 44694RMtz is often more affordable than the original equipment, providing a cost-effective solution for vehicle owners.

1. Installation Complexity: Installing the new expansion plug may require some mechanical expertise, as accessing the rear cylinder head can be a challenging task.

2. Potential for Damage: The process of removing and installing the expansion plug can potentially cause damage to the cylinder head or other engine components.

3. Availability: Depending on the location and specific availability, it may take some time to source and receive the replacement plug.

The Dorman 44694RMtz expansion plug offers several advantages, including enhanced performance, durability, OEM-equivalent quality, and cost-effectiveness. However, it also comes with some potential drawbacks, such as installation complexity, the risk of damage during installation, and potential availability issues.

If you're comfortable with the installation process or have access to a professional mechanic, the Dorman 44694RMtz expansion plug can be a worthwhile upgrade for your 1986-1987 Buick Somerset. The potential performance gains, coupled with the cost savings, make this an attractive option for those seeking to optimize their vehicle's engine. However, if you're uncertain about your mechanical abilities or prefer a more straightforward solution, it may be worth considering other options or consulting a professional for advice.

Details:

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: 1986 - 1987 Buick somerset 3.0l v6. Condition: new.

Ideal solution - this plug is a reliable replacement for an original part that missing or has failed due to fatigue.

specifications engineblocksam:

• for makes: Buick
• for years: 1986–1987
• brand: Dorman
• mpn: 44694rmtz
• part type: Plug
• placement on vehicle: Rear
• manufacturer warranty: 12 Month Warranty
• notes: Engine Core Plug 1.218 In.; 6 Required; Package Quantity
• years: 1986 1987
• application: Buick Somerset Expansion Plug
• product name 2: Engine Core Plug
• cs-sku: 400

seller engineblocksam:

• rating: 98.8%
• # reviews: 329022
• city: berkley, massachusetts

shipping engineblocksam:

• service: fedex ground / fedex home delivery
• type: fixed
• class: standard
• transit: 4-7 days
• carrier: fedex

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

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general engineblocksam:

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

offer engineblocksam:

• sold #: 9
• price: $20.10
• item condition: New
• in stock #: 1
• started: april 18, 2026
• options: ship-to-home
• availability: in stock