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  3. NATIONAL SX-8K9N

NATIONAL SX-8K9N Transmission Shaft Seal Manual

fits model: P1500. make: Gmc. year: 1979–1980.

Sx-8k9n National Transmission Shift Shaft Seal For 1979-1980 Gmc P1500 Manual Ul

( Brand: National ), ( Manufacturer Part Number: SX-8K9N ), ( Type: Manual Transmission Shift Shaft Seal ), ( Ipn: C496 58-67 ), ( Item Length: 2.000 ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Transmission Gaskets Sealing Systems ), ( Compatible Year: 1980 1979 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine National Manual Transmission Shift Shaft Seal )

Review NATIONAL Transmission Shift Shaft Seal For Gmc Manual Ul fits P1500 1979–1980

Introducing the National SX-8K9N Transmission Shaft Seal, a critical component designed specifically for 1979 and 1980 GMC P1500 manual transmission vehicles. This seal is essential for maintaining the integrity of your vehicle's transmission system, ensuring a reliable and efficient driving experience.

The SX-8K9N Transmission Shaft Seal is meticulously engineered using high-quality materials, including a durable, compression-molded rubber compound for superior sealing ability. It is designed to fit snugly into the transmission shaft housing, creating a tight seal that prevents transmission fluid from leaking out. This seal is also resistant to the harsh conditions of transmission fluid, ensuring long-lasting performance and reliability.

The design of the National SX-8K9N Transmission Shaft Seal incorporates a specialized lip that provides an additional barrier against fluid loss. This lip is angled to direct fluid flow away from the seal, preventing wear and tear caused by constant fluid contact. The seal's outer diameter is also precision-engineered to match the transmission shaft housing, ensuring a perfect fit every time.

Installing the National SX-8K9N Transmission Shaft Seal is a straightforward process. Simply remove the old seal and the surrounding gasket material, clean the area thoroughly, and then install the new seal. It is recommended that a high-quality sealant is used during installation to ensure a strong, leak-free bond.

In conclusion, the National SX-8K9N Transmission Shaft Seal is an essential component for any 1979 or 1980 GMC P1500 manual transmission vehicle. Its high-quality design, superior sealing ability, and resistance to the harsh conditions of transmission fluid make it an ideal choice for those seeking reliable and efficient transmission performance. With easy installation and long-lasting durability, this seal is an investment that will pay off in the long run.

Buying a National SX-8K9N transmission shaft seal for a 1979-1980 GMC P1500 manual transmission vehicle can be a worthwhile investment for those experiencing leaks in their transmission system. Here are some pros and cons to consider before making a purchase.

Pros:

1. OEM (Original Equipment Manufacturer) Replacement: The National SX-8K9N is an original equipment manufacturer (OEM) seal, which means it is the same seal that came with the vehicle from the factory. Using an OEM seal ensures a proper fit and function, and it may prevent future leaks.

2. High-Quality Material: The National SX-8K9N seal is made of a high-quality material, such as a synthetic rubber compound. This material can offer better resistance to wear, tear, and the effects of various fluids, which can extend the life of the seal and the transmission system as a whole.

3. Easy Installation: The seal is relatively easy to install, typically requiring only basic hand tools and some patience. The installation process can usually be completed in a few hours, making it a cost-effective solution for addressing transmission leaks.

4. Preventive Maintenance: Replacing the transmission shaft seal as a preventive measure can help avoid more extensive and costly repairs down the line. If a leak is left unattended, it could lead to further damage to the transmission system.

Cons:

1. Cost: While the OEM seal may be the best option for ensuring a proper fit and function, it can also be more expensive than aftermarket seals. The cost of the National SX-8K9N seal may be a significant consideration for some vehicle owners.

2. Availability: Depending on the location and the availability of parts from local dealerships or suppliers, it may take some time to source and receive the National SX-8K9N seal. Online retailers may offer a more convenient option for purchasing and having the seal shipped directly to the customer.

3. Installation Complexity: While the installation process is generally straightforward, there may be some challenges in accessing the transmission shaft seal and removing the old seal without causing damage to the transmission system. Careful preparation and attention to detail during the installation process can help minimize potential issues.

Conclusion:

In summary, purchasing a National SX-8K9N transmission shaft seal for a 1979-1980 GMC P1500 manual transmission vehicle can offer several benefits, such as a proper fit, high-quality material, and easy installation. However, it may come with some drawbacks, including cost, availability, and installation complexity. Ultimately, the decision to purchase this seal depends on the individual's priorities, budget, and the urgency of the repair.

Recommendation:

If a transmission leak is causing concern, it is recommended to consider purchasing a National SX-8K9N transmission shaft seal as a solution. Weighing the pros and cons, this OEM seal can provide peace of mind knowing that a proper fit and high-quality material are being used to address the issue. However, it is essential to ensure that the seal is obtained from a reputable source and that the installation process is carried out carefully to minimize potential complications.

Details:

National Transmission Shift Shaft Seal for 1979 1980 GMC P1500 Manual ul: Status: In Stock.

part #: sx8k9n price

  • $12.21

specifications manutransmission:

  • for models: P1500
  • for makes: Gmc
  • for years: 1979-1980
  • brand: National
  • mpn: Sx-8k9n
  • type: Manual Transmission Shift Shaft Seal
  • ipn: C496 58-67
  • item length: 2.000
  • manufacturer warranty: 1 Year
  • placement on vehicle: Transmission Gaskets Sealing Systems
  • compatible year: 1980 1979
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine National Manual Transmission Shift Shaft Seal

returns manutransmission:

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

general manutransmission:

  • Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
  • condition: New

seller manutransmission:

  • city: Indianapolis, Indiana
  • # reviews: 630260
  • rating: 99.5%

offer manutransmission:

  • options: Ship-to-home
  • quantity: 3
  • availability: In Stock
  • started: March 8, 2026
  • sold: 0

shipping manutransmission:

  • class: Standard, Expedited
  • transit: 3-6 Days
  • cost: $0.00
  • service: Standard, Expedited
  • type: Fixed

payments manutransmission:

  • wallet: Paypal
  • credit card: Discover
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for models: p1500, for makes: gmc, for years: 1979-1980, type: manual transmission shift shaft seal, item length: 2.000, manufacturer warranty: 1 year, placement on vehicle: transmission gaskets sealing systems, compatible year: 1980 1979, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine national manual transmission shift shaft seal,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 11539715964727721,

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