1. Car & Truck Manual Transmission Parts Deals
  2. sku: 8818520959565603
  3. NATIONAL SX-J6W7

NATIONAL SX-J6W7 Transmission Shaft Seals International

fits year: 1968–1971.

Sx-j6w7 National 2 Pc Transmission Shift Shaft Seals For 1968-1971 International Cu

( Brand: National ), ( Manufacturer Part Number: SX-J6W7 ), ( Type: Manual Transmission Shift Shaft Seal ), ( Ipn: C477 51-33 ), ( Item Length: 2.000 ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Transmission Gaskets Sealing Systems ), ( Compatible Make: International ), ( Compatible Model: M800 ), ( Compatible Year: 1971 1970 1969 1968 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 2 Pc Genuine National Manual Transmission Shift Shaft Seal Kit )

Review NATIONAL Pc Transmission Shift Shaft Seals For International Cu fits 1968–1971

Introducing the National SX-J6W7 transmission shaft seals, specifically designed for International Harvester trucks produced between 1968 and 1971. These seals play a crucial role in maintaining the optimal performance and longevity of your vehicle's transmission system.

The SX-J6W7 transmission shaft seals are engineered using high-quality materials that ensure a perfect fit and exceptional sealing ability. Each seal features a durable, reinforced rubber design that effectively prevents transmission fluid leakage, thus preserving the overall health of your vehicle's powertrain.

These seals are meticulously manufactured to precisely match the contours and dimensions of the original equipment, ensuring seamless integration and hassle-free installation. By using OEM-grade materials and manufacturing processes, National ensures that the SX-J6W7 seals meet or even exceed the original equipment specifications for superior reliability and durability.

The seals are designed to accommodate the specific wear patterns and stresses that are common in vehicles of this age, making them an ideal choice for those seeking to keep their classic or vintage International Harvester trucks in top condition.

Installing the SX-J6W7 transmission shaft seals is a straightforward process that can be completed in a relatively short amount of time, even for those without extensive mechanical experience. Each seal comes complete with comprehensive installation instructions, ensuring that the replacement process is as smooth and stress-free as possible.

In summary, the National SX-J6W7 transmission shaft seals are a must-have for any International Harvester truck owner seeking to keep their vehicle's transmission system in peak condition. These high-quality seals offer a perfect fit, exceptional sealing ability, and hassle-free installation, making them an indispensable addition to your vehicle's maintenance regime.

Buying National SX-J6W7 transmission shaft seals for a 1968-1971 International Harvester truck can be a crucial decision for maintaining the proper functioning of your vehicle's transmission system. Here are some potential pros and cons to consider before making a purchase:

Pros:

1. OEM (Original Equipment Manufacturer) part: National is an original equipment supplier for International Harvester, ensuring a precise fit and function.

2. Durability: These seals are designed to withstand the rigors of heavy-duty commercial use, providing long-lasting protection against leaks.

3. Reduced downtime: By using genuine OEM parts, you can minimize the likelihood of needing repeated repairs or replacements, saving time and money in the long run.

4. Peace of mind: Buying from a reputable and trusted supplier like National will give you confidence that the parts you are buying are of high quality and will perform as intended.

Cons:

1. Cost: Original equipment parts can be more expensive compared to aftermarket alternatives.

2. Availability: These seals may not be readily available at local parts stores, so you may need to order them online or through a dealer.

3. Installation: The installation process for transmission shaft seals can be complex, and it may be necessary to remove the transmission to access and replace the seals.

In conclusion, while the decision to buy National SX-J6W7 transmission shaft seals for a 1968-1971 International Harvester truck may come with some costs and potential challenges, the benefits of using genuine OEM parts, such as durability, reduced downtime, and peace of mind, can outweigh the cons. Ultimately, the choice depends on your budget, availability, and personal preferences. If you prioritize the highest level of quality and performance, then purchasing these seals from a reputable supplier like National is a worthwhile investment.

Details:

part #: sxj6w7 price

  • $21.76

specifications manutransmission:

  • for years: 1968-1971
  • brand: National
  • mpn: Sx-j6w7
  • type: Manual Transmission Shift Shaft Seal
  • ipn: C477 51-33
  • item length: 2.000
  • manufacturer warranty: 1 Year
  • placement on vehicle: Transmission Gaskets Sealing Systems
  • compatible make: International
  • compatible model: M800
  • compatible year: 1971 1970 1969 1968
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 2 Pc Genuine National Manual Transmission Shift Shaft Seal Kit

general manutransmission:

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

shipping manutransmission:

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

offer manutransmission:

  • availability: In Stock
  • quantity: 2
  • sold: 0
  • options: Ship-to-home
  • started: October 24, 2025

returns manutransmission:

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

payments manutransmission:

  • wallet: Apple-pay
  • credit card: Diners-club
  • other

seller manutransmission:

  • rating: 99.0%
  • city: Indianapolis, Indiana
  • # reviews: 583865
for years: 1968-1971, type: manual transmission shift shaft seal, item length: 2.000, manufacturer warranty: 1 year, placement on vehicle: transmission gaskets sealing systems, compatible make: international, compatible model: m800, compatible year: 1971 1970 1969 1968, core charge: free no core charge, fitment type: direct replacement, bundle description: 2 pc genuine national manual transmission shift shaft seal kit,
category: auto parts > car truck parts accessories > transmission drivetrain > manual transmission parts, sku: 8818520959565603,

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