SX-RE78 NATIONAL Front Engine Crankshaft Seal Gaskets Yj Gmc

Review NATIONAL Front Engine Crankshaft Seal For Gmc Gaskets Yj for GMC C3500 1979–2000

Introducing the National SX-RE78 Front Engine Crankshaft Seal, specifically designed for 1979-2000 GMC C3500 models with YJ engines. This high-quality crankshaft seal is an essential component for maintaining the integrity of your engine's oil system.

The National SX-RE78 Crankshaft Seal is manufactured using advanced materials, ensuring a perfect seal against engine crankshaft rotating components. The seal is designed to withstand the rigors of continuous engine operation, providing reliable protection against oil leaks and contamination.

This crankshaft seal features an O-ring design, which provides an extra layer of sealing performance. The O-ring is made of a high-quality, resilient material that offers excellent sealing properties, even under extreme temperatures and pressures.

The National SX-RE78 Crankshaft Seal is easy to install, ensuring that you can get your vehicle back on the road as quickly as possible. The seal comes complete with all necessary hardware, and installation instructions are included to make the process as straightforward as possible.

In addition, this crankshaft seal is backed by National's industry-leading warranty, which guarantees your peace of mind. National is committed to providing you with top-quality products that meet or exceed OEM specifications, ensuring that your vehicle remains in optimal condition.

By choosing the National SX-RE78 Front Engine Crankshaft Seal, you can trust that you are investing in a reliable and durable solution for your GMC C3500. This seal is designed to provide long-lasting protection against oil leaks and contamination, ensuring that your engine runs smoothly and efficiently.

In summary, the National SX-RE78 Front Engine Crankshaft Seal is an essential component for maintaining the performance and reliability of your 1979-2000 GMC C3500 with a YJ engine. It is manufactured using advanced materials, features an O-ring design for reliable sealing, and is easy to install. Plus, it comes with National's industry-leading warranty, making it a smart investment for any vehicle owner.

Buying a National SX-RE78 front engine crankshaft seal for a 1979-2000 GMC C3500 or YJ (Jeep Wrangler) comes with both advantages and disadvantages. Here's a brief overview:

1. OEM Equivalent: This National seal is an OEM (Original Equipment Manufacturer) equivalent, which means it is designed to fit and function similarly to the original seal that came with the vehicle.

2. Reliable: National is a trusted brand in the automotive aftermarket. This seal is engineered to provide a reliable seal, preventing oil leaks and ensuring proper engine performance.

3. Easy Installation: The National SX-RE78 seal is designed for easy installation, saving you time and effort compared to other repairs.

4. Affordable: Compared to the cost of buying a new vehicle or even a remanufactured engine, replacing the crankshaft seal is a cost-effective solution.

1. Potential for Multiple Leaks: Replacing just the crankshaft seal may not fix all oil leaks. Other seals or gaskets in the engine may also need to be replaced.

2. Labor Costs: While the seal itself is relatively affordable, the labor costs for installation can add up, especially if you choose to have a professional do the job.

3. Availability: Depending on your location and the availability of parts at local auto stores, you may need to order the seal online and wait for it to be delivered.

Buying a National SX-RE78 front engine crankshaft seal for a 1979-2000 GMC C3500 or YJ is a cost-effective and reliable solution for preventing oil leaks and maintaining proper engine performance. However, it's essential to consider the potential for multiple leaks and labor costs. If you're comfortable with the installation process or have access to a mechanic who can do it for a reasonable price, this is a good option. If you're not confident in your abilities or resources, you may want to consider having a professional diagnose and repair all oil leaks at once to avoid future issues.

I would recommend purchasing the National SX-RE78 front engine crankshaft seal as a part of a comprehensive engine repair plan. This includes having the vehicle inspected by a trusted mechanic to identify any other potential leaks and addressing those issues as well. This approach will ensure that your engine is in good working order and prevent future oil leaks. If you're comfortable with the installation process, you can save on labor costs by doing it yourself. Otherwise, consider having a professional do the job to ensure a proper and long-lasting repair.

Details:

National front engine crankshaft seal for 1979 2000 Gmc C3500 gaskets yj: status: in stock.

specifications differentialsdepo:

• for models: C3500
• for makes: Gmc
• for years: 1979–2000
• brand: National
• mpn: Sx-re78
• placement on vehicle: Engine Gaskets Sealing Systems
• type: Engine Crankshaft Seal
• item length: 3.250
• manufacturer warranty: 1 Year
• ipn: C271 83-64
• compatible year: 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988
• 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: diners-club
• wallet: apple-pay
• other

shipping differentialsdepo:

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

seller differentialsdepo:

• # reviews: 598526
• rating: 99.2%
• city: indianapolis, indiana

general differentialsdepo:

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

returns differentialsdepo:

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

offer differentialsdepo:

• sold #: 12
• availability: in stock
• options: ship-to-home
• started: november 29, 2025
• prices: $18.03–$22.34
• item condition: New
• in stock #: 2