SX-V78K NATIONAL Front Engine Crankshaft Seal Gaskets 2500

Review NATIONAL Front Engine Crankshaft Seal For Gmc Gaskets Ao for GMC SIERRA 2500 1999–2004

Introducing the National SX-V78K Front Engine Crankshaft Seal, specifically designed for the 1999-2004 GMC Sierra 2500 models. This crankshaft seal is an essential component of your engine's sealing system that prevents oil leakage from the crankshaft.

Crafted from high-quality materials, the National SX-V78K Front Engine Crankshaft Seal ensures a reliable seal against the engine block. It is designed to fit perfectly, providing an airtight seal to prevent oil loss. The seal is engineered with an advanced lip design that provides an excellent seal against the crankshaft.

The SX-V78K seal is also engineered to withstand the high pressures and temperatures inside the engine. Its robust construction ensures that it can withstand the rigors of daily driving, even in the toughest conditions.

Installing the National SX-V78K Front Engine Crankshaft Seal is a straightforward process. It comes with all necessary installation hardware, making it a hassle-free replacement. The seal is also backed by a comprehensive warranty, giving you peace of mind and protection against any manufacturing defects.

In summary, the National SX-V78K Front Engine Crankshaft Seal is a high-performance, reliable, and durable solution for your 1999-2004 GMC Sierra 2500 models. It is specifically designed to provide an airtight seal against the engine block, preventing oil leakage and ensuring optimal engine performance. With its robust construction and comprehensive warranty, this seal is the perfect choice for keeping your engine running smoothly and efficiently.

Buying a National SX-V78K front engine crankshaft seal for a 1999-2004 GMC Sierra 2500 involves considering both its advantages and potential drawbacks.

1. OEM Equivalence: This seal is an OEM (Original Equipment Manufacturer) equivalent, which means it is designed and manufactured to meet or exceed the performance standards of the original part.

2. Durability: The National SX-V78K seal is engineered to provide a long service life, preventing leaks and reducing the need for frequent replacements.

3. Seal Material: This seal is made of high-quality material, such as viton or silicone, which provides excellent sealing capabilities and resists the effects of harsh engine conditions.

4. Availability: This seal is widely available from various auto parts retailers, both in-store and online, making it convenient to purchase and have it shipped to your location.

1. Price: The National SX-V78K front engine crankshaft seal may be more expensive than aftermarket alternatives, which could be a concern for budget-conscious consumers.

2. Installation: Installing the seal yourself can be a complex process, requiring specialized tools and knowledge. Hiring a professional mechanic to install the seal may add to the overall cost.

In conclusion, the National SX-V78K front engine crankshaft seal offers several advantages, including its OEM equivalence, durability, seal material, and availability. However, its higher price compared to aftermarket alternatives and the potential complexity of installation may be drawbacks for some consumers.

If you are looking for a high-quality, long-lasting seal that meets or exceeds the performance standards of the original part, the National SX-V78K front engine crankshaft seal is a good investment. However, if you are on a tight budget or are comfortable with the installation process, an aftermarket seal may be a more cost-effective option. Ultimately, the decision depends on your individual needs and preferences.

Details:

National front engine crankshaft seal for 1999 - 2004 Gmc Sierra 2500 gaskets ao: status: in stock.

specifications differentialsdepo:

• for models: 2500, Sierra
• for makes: Gmc
• for years: 1999–2004
• brand: National
• mpn: Sx-v78k
• placement on vehicle: Engine Gaskets Sealing Systems
• type: Engine Crankshaft Seal
• item length: 3.250
• manufacturer warranty: 1 Year
• ipn: C436 76-20
• compatible model: Sierra 2500
• compatible year: 2004 2003 2002 2001 2000 1999
• core charge: Free No Core Charge
• position: Front
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Engine Crankshaft Seal

payments differentialsdepo:

• credit card: visa
• other
• wallet: paypal

returns differentialsdepo:

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

offer differentialsdepo:

• prices: $23.59–$30.15
• item condition: New
• in stock #: 2
• availability: in stock
• sold #: 7
• options: ship-to-home
• started: april 18, 2026

seller differentialsdepo:

• # reviews: 646701
• rating: 99.6%
• city: indianapolis, indiana

shipping differentialsdepo:

• transit: 4-7 days
• class: standard, expedited
• service: standard, expedited
• type: fixed

general differentialsdepo:

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