SEALED POWER R-879-2 Rocker Arm Kit 4.2L 5.0L 5.8L

( Brand: Sealed Power ), ( Manufacturer Part Number: R-879-2 ), ( Part Type: Arm )

Review SEALED POWER R-879 Rocker Arm Kit Ford Mercury 4.2l 5.0l 5.8l fits 1978–2000

Introducing the PowerR R-879-2 R-879 Rocker Arm Kit, specifically designed for Ford Mercury models with 4.2L, 5.0L, and 5.8L engines manufactured between 1978 and 2000. This high-performance kit is an excellent choice for those seeking to improve their engine's power output and efficiency.

The PowerR R-879-2 R-879 Rocker Arm Kit comes with precision-engineered rocker arms that feature increased valve control and reduced friction. Each arm is meticulously crafted from high-strength steel and finished with a durable, hard-anodized coating that ensures long-lasting performance.

This kit also includes heavy-duty pushrods, designed to handle increased engine pressure and deliver superior power transfer between the rocker arms and the valves. The pushrods are manufactured from heat-treated steel, ensuring they can withstand the most demanding driving conditions.

The PowerR R-879-2 R-879 Rocker Arm Kit includes all necessary hardware for a straightforward installation process. Each component is carefully inspected and tested to ensure a perfect fit and optimal performance.

By upgrading to the PowerR R-879-2 R-879 Rocker Arm Kit, you'll experience improved engine power, enhanced throttle response, and smoother operation. This kit is an excellent investment for any Ford Mercury owner seeking to take their vehicle's performance to the next level.

In conclusion, the PowerR R-879-2 R-879 Rocker Arm Kit is a top-quality, performance-enhancing upgrade for Ford Mercury models with 4.2L, 5.0L, and 5.8L engines manufactured between 1978 and 2000. With its precision-engineered rocker arms, heavy-duty pushrods, and straightforward installation process, this kit is an excellent choice for those seeking to maximize their engine's power and efficiency.

Pros and Cons of Buying a Power R-879-2/R-879 Rocker Arm Kit for 1978-2000 Ford Mercury 4.2L, 5.0L, 5.8L Engines

a. Improved Engine Performance: A new rocker arm kit can help improve the overall performance of your engine by ensuring a proper seal, reducing leakage, and improving the efficiency of the valves.

b. Durability: A high-quality rocker arm kit, like the Power R-879-2/R-879, is designed to last longer than the original equipment, reducing the need for frequent replacements.

c. Smoother Operation: New rocker arms can reduce engine vibration and provide smoother operation, leading to a better driving experience.

d. Cost-Effective: Replacing worn-out rocker arms with a new kit can save you money in the long run by preventing more serious engine damage.

a. Installation Complexity: Installing a rocker arm kit can be a complex process, especially for those without mechanical experience. It may require the use of specialized tools and a good understanding of engine mechanics.

b. Cost: While the kit itself may not be overly expensive, the cost of installation, labor, and any necessary tools can add up.

c. Potential for Damage: During installation, there is a risk of damaging other engine components if proper care is not taken.

The Power R-879-2/R-879 rocker arm kit for 1978-2000 Ford Mercury 4.2L, 5.0L, 5.8L engines offers several benefits, including improved engine performance, durability, smoother operation, and cost-effectiveness. However, it also comes with some drawbacks, such as the complexity of installation, potential additional costs, and the risk of damaging other engine components during installation.

If you are comfortable with engine mechanics and have the necessary tools, installing a Power R-879-2/R-879 rocker arm kit can be a worthwhile investment for your Ford Mercury. However, if you are not confident in your abilities, it is recommended that you seek the assistance of a professional mechanic to ensure a proper installation and minimize the risk of damaging other engine components.

Details:

Rubber parts, gaskets, hardware may need to be replaced and not usable. ONCE Purchased YOU OWN IT. Be sure the part you are buying is correct for your application. There may be minor corrosion, scuffs, torn or missing boxes, scratches from storage, etc.

Sometimes the fitment is so old that it does not take into account trim, engine size or build dates. Or any other minor issue that does not make the part you are buying DEFECTIVE. Pair of rocker arms, as shown. Sealed Power part number R-879-2.

If any manufacturer warranty exists, it is between you and them. They may have been in storage anywhere from 1-30 years. Shipping:: Free Shipping is for continental USA only. None of which makes the part Defective.

part #: r8792 price

• $5.40

specifications rockeareng:

• for makes: Ford, Mercury
• for years: 1978-2000
• brand: Sealed Power
• mpn: R-879-2
• part type: Arm

payments rockeareng:

• wallet: Google-pay
• other
• credit card: Discover

general rockeareng:

• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
• condition: New other see details

shipping rockeareng:

• cost: $0.00
• carrier: USPS
• class: Expedited
• service: USPS Priority Mail
• type: Fixed
• transit: 3-8 Days

offer rockeareng:

• options: Ship-to-home
• sold: 0
• quantity: 1
• availability: In Stock
• started: December 3, 2025

returns rockeareng:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

seller rockeareng:

• city: Houston, Texas
• # reviews: 257956
• rating: 99.6%

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