SX-T7XM NATIONAL Transmission Shaft Seal International Jl

Review NATIONAL Transmission Output Shaft Seal For International Jl for R112 1953–1955

Introducing the National SX-T7XM Transmission Shaft Seal, specifically designed for 1953-1955 International Harvester R112 JL trucks. This seal is an essential component of your vehicle's transmission system, responsible for preventing the leakage of transmission fluid and ensuring a smooth operation of the powertrain.

The SX-T7XM seal is manufactured using high-quality materials that offer superior sealing performance. The seal's exterior is made of a durable, reinforced rubber compound that can withstand the harsh conditions of continuous transmission fluid exposure. The interior, on the other hand, features a precision-molded, polymeric material that provides an exact fit and seals tightly against the transmission shaft.

The seal's design incorporates an innovative lip shape that creates a positive seal against the shaft, minimizing the risk of leaks and ensuring an airtight seal. The lip is also angled to accommodate for the natural movement of the shaft during operation, allowing for flexibility while maintaining the seal's integrity.

Installing the National SX-T7XM Transmission Shaft Seal is a straightforward process. The seal comes in a kit that includes all necessary hardware, making it a convenient one-stop solution for your sealing needs. The kit includes new gaskets and sealing compound to ensure a proper and long-lasting installation.

By upgrading your vehicle with the National SX-T7XM Transmission Shaft Seal, you'll enjoy improved transmission performance and peace of mind knowing that your powertrain is well protected against potential leaks. This seal is a worthy investment for any International Harvester R112 JL owner seeking to maintain the optimal performance of their truck.

Buying a national SX-T7XM transmission shaft seal for a 1953-1955 International Harvester R112 JL tractor can be a necessary maintenance task to prevent transmission fluid leakage and ensure the longevity of the transmission system. Here are some pros and cons to consider before making a purchase.

1. Prevents Transmission Fluid Leakage: A worn-out or damaged seal can cause transmission fluid to leak out, leading to costly repairs and potential transmission damage. Replacing the seal with a new one can prevent this issue.

2. Enhances Transmission Performance: A properly sealed transmission system ensures that the transmission fluid remains contained, preventing contamination from external elements and maintaining optimal operating conditions.

3. Improves Transmission Efficiency: A leaking seal can cause the transmission to work harder, leading to increased wear and tear and decreased efficiency. Replacing the seal can help improve overall transmission performance.

1. Cost: Replacing a transmission shaft seal can be an expensive repair, especially for older tractors like the International Harvester R112 JL. The cost of the seal itself may not be high, but labor costs and potential additional parts needed for the repair can add up.

2. Complexity of Repair: Installing a transmission shaft seal can be a complex repair, especially for those without experience working on tractors. It may require specialized tools and knowledge to complete the job correctly.

3. Availability: Finding a suitable transmission shaft seal for an older tractor like the International Harvester R112 JL can be a challenge, as they may no longer be in production or readily available from dealerships.

In conclusion, purchasing a national SX-T7XM transmission shaft seal for a 1953-1955 International Harvester R112 JL tractor can be a necessary investment to prevent transmission fluid leakage and ensure the long-term performance of the transmission system. However, the cost, complexity of repair, and availability of the seal should be carefully considered before making a purchase. If you are not confident in your ability to complete the repair yourself, it may be best to seek the help of a professional mechanic.

If you decide to proceed with the repair, it is recommended to thoroughly research the repair process, gather all necessary tools and parts, and ensure that you have a suitable replacement seal on hand before beginning the repair. It may also be worth considering purchasing a high-quality seal from a reputable manufacturer to ensure its durability and longevity. Additionally, if you are unsure about your ability to complete the repair yourself, consider seeking the help of a professional mechanic to ensure the job is done correctly and efficiently.

Details:

specifications differentialsdepo:

• for models: R112
• for years: 1953–1955
• brand: National
• mpn: Sx-t7xm
• placement on vehicle: Transmission Gaskets Sealing Systems
• type: Manual Transmission Output Shaft Seal
• item length: 3.250
• manufacturer warranty: 1 Year
• ipn: C832 44-21
• compatible make: International
• compatible year: 1955 1954 1953
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Manual Transmission Output Shaft Seal

shipping differentialsdepo:

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

general differentialsdepo:

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

offer differentialsdepo:

• availability: in stock
• sold #: 7
• prices: $17.98–$23.48
• item condition: New
• options: ship-to-home
• in stock #: 2
• started: april 13, 2026

seller differentialsdepo:

• # reviews: 644232
• city: indianapolis, indiana
• rating: 99.6%

payments differentialsdepo:

• wallet: paypal
• other
• credit card: diners-club

returns differentialsdepo:

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