SX-8Y84 NATIONAL Front Engine Crankshaft Seal Da Mercury

Review NATIONAL Front Engine Crankshaft Seal For Mercury Da for MERCURY MOUNTAINEER 2002–2010

The National SX-8Y84 front engine crankshaft seal is a crucial component for maintaining the sealing integrity of your Mercury Mountaineer's engine from 2002 to 2010. This part is specifically designed to prevent oil leakage from the crankshaft area, ensuring proper engine lubrication and longevity.

This crankshaft seal is manufactured using high-quality materials, ensuring a long-lasting and reliable performance. The seal's outer diameter measures approximately 3.25 inches, and its thickness is around 0.375 inches. Its inner diameter is engineered to fit the crankshaft snugly, providing an effective seal against oil leakage.

The seal's lip is designed with an advanced extrusion process, ensuring a perfect seal against the engine block and crankshaft. The lip's design also incorporates a labyrinth design that helps prevent oil from entering the seal's interference fit area, minimizing the risk of oil leakage.

Installation of this National SX-8Y84 front engine crankshaft seal is a relatively straightforward process, but it does require some skill and experience. The seal is typically installed between the engine block and the crankshaft, and it may require the use of specialized tools to remove the old seal and install the new one.

It is essential to follow the manufacturer's instructions carefully when installing this seal to ensure proper fitment and sealing efficiency. It is also recommended to use a high-quality sealant or RTV (Room Temperature Vulcanizing) silicone to help prevent any potential leaks.

In summary, the National SX-8Y84 front engine crankshaft seal for Mercury Mountaineers from 2002 to 2010 is a vital component for maintaining engine performance and preventing oil leakage. Its advanced design, high-quality materials, and precise fit ensure reliable sealing and long-lasting performance. Proper installation is crucial for optimal results.

Buying a national SX-8Y84 front engine crankshaft seal for a 2002-2010 Mercury Mountaineer DA comes with both advantages and disadvantages. Let's examine each in detail.

1. Availability: National brand seals like SX-8Y84 are widely available at auto parts stores, online retailers, and even at some service centers. This makes it relatively easy to find and purchase the seal when needed.

2. Cost-effective: National brand seals typically cost less than OEM (original equipment manufacturer) seals. This can save you money, especially if you're working on your vehicle as a DIY project or if you're on a tight budget.

3. Functional equivalent: National brand seals are designed to be functional equivalents of OEM seals. They are engineered to meet the same specifications and perform the same function.

1. Durability: The durability of national brand seals may not be the same as that of OEM seals. They might not last as long, which could mean you'll need to replace them more frequently.

2. Fit and finish: While national brand seals are designed to be functional equivalents, they might not have the same fit and finish as OEM seals. This could lead to leaks or other issues.

3. Warranty: National brand seals usually don't come with the same level of warranty coverage as OEM seals. This means that if the seal fails prematurely, you might not be covered for replacement or repair.

When considering buying a national SX-8Y84 front engine crankshaft seal for your 2002-2010 Mercury Mountaineer DA, it's important to weigh the advantages and disadvantages carefully. National brand seals offer convenience, cost savings, and functional equivalence. However, they may not provide the same level of durability, fit and finish, or warranty coverage as OEM seals.

If you're looking for a cost-effective option and are confident in your installation abilities, a national brand seal could be a good choice. However, if you prioritize long-term durability and want the peace of mind that comes with a warranty, an OEM seal might be a better investment. Ultimately, the decision depends on your personal preferences, budget, and vehicle usage.

Details:

National front engine crankshaft seal for 2002 - 2010 Mercury Mountaineer da: status: in stock.

specifications differentialsdepo:

• for models: Mountaineer
• for makes: Mercury
• for years: 2002–2010
• brand: National
• mpn: Sx-8y84
• placement on vehicle: Engine Gaskets Sealing Systems
• type: Engine Crankshaft Seal
• item length: 2.750
• manufacturer warranty: 1 Year
• ipn: C580 53-49
• compatible year: 2010 2009 2008 2007 2006 2005 2004 2003 2002
• core charge: Free No Core Charge
• position: Front
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Engine Crankshaft Seal

returns differentialsdepo:

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

seller differentialsdepo:

• rating: 99.2%
• city: indianapolis, indiana
• # reviews: 598917

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials, Assemblies > Additional

shipping differentialsdepo:

• transit: 3-6 days
• service: standard, expedited
• class: standard, expedited
• type: fixed

offer differentialsdepo:

• sold #: 12
• availability: in stock
• price: $12.36
• item condition: New
• in stock #: 1
• options: ship-to-home
• started: november 30, 2025

payments differentialsdepo:

• wallet: paypal
• credit card: visa
• other