SX-BEQ6 NATIONAL Transmission Shaft Seal International Xi

Review NATIONAL Transmission Input Shaft Seal For International Xi for A112 1957–1958

Introducing the National SX-BEQ6 Transmission Shaft Seal, specifically designed for International Harvester A112 XI trucks manufactured between 1957 and 1958. This premium seal is an essential component for maintaining the optimal performance and longevity of your vehicle's transmission system.

The SX-BEQ6 Transmission Shaft Seal is meticulously crafted using high-quality materials, ensuring superior sealing capabilities against transmission fluid and potential contaminants. Manufactured with a precise fit in mind, this seal effectively prevents leakage, reducing the need for frequent maintenance and potential damage caused by transmission fluid loss.

This seal boasts a robust design that is resilient to the harsh conditions often encountered in heavy-duty applications. Its flexible nature adapts to various shaft movements, allowing for seamless operation and reduced wear and tear. The SX-BEQ6 seal is also resistant to the corrosive effects of transmission fluid, ensuring long-lasting performance and reliability.

Installation of the National SX-BEQ6 Transmission Shaft Seal is straightforward and can be accomplished with basic hand tools. Each seal is sold individually, allowing you to replace only the faulty component, thereby saving you time and money. By choosing to upgrade your vehicle with this superior transmission shaft seal, you can enjoy the peace of mind that comes with enhanced performance and extended component life.

In summary, the National SX-BEQ6 Transmission Shaft Seal is an essential upgrade for International Harvester A112 XI truck owners from 1957 to 1958. Designed with superior sealing capabilities, robust construction, and ease of installation, this premium seal ensures optimal transmission system performance and longevity. Upgrade your vehicle today with the National SX-BEQ6 Transmission Shaft Seal.

Buying a National SX-BEQ6 transmission shaft seal for a 1957-1958 International A112 XI comes with both advantages and disadvantages. Here's a detailed analysis of each:

1. OEM Quality: The National SX-BEQ6 is an Original Equipment Manufacturer (OEM) seal. This means it is specifically designed and manufactured to meet the performance and durability standards of International Trucks.

2. Long Lasting: The OEM seal is engineered to provide reliable service for the life of the transmission, reducing the need for frequent replacements.

3. Proper Fit: Since it is the exact same seal used in the original transmission, it will fit perfectly and eliminate any potential leaks or issues related to a mismatched aftermarket part.

1. Cost: OEM parts, such as the National SX-BEQ6 transmission shaft seal, are typically more expensive than their aftermarket counterparts.

2. Availability: OEM parts may not always be readily available, especially for older models like the 1957-1958 International A112 XI.

3. Limited Warranty: While the OEM seal is designed to last, it may not always do so. In such cases, the warranty coverage for an OEM part may be more limited compared to aftermarket parts.

When it comes to choosing between an OEM National SX-BEQ6 transmission shaft seal and an aftermarket alternative for a 1957-1958 International A112 XI, it ultimately depends on your priorities. If you value the peace of mind that comes with the perfect fit, OEM quality, and long-term durability, the OEM seal is the way to go. However, if cost is a concern, or if the part is not readily available, an aftermarket seal may be a more practical alternative.

If you're looking for a reliable, long-lasting solution and are willing to pay a premium for OEM quality, the National SX-BEQ6 transmission shaft seal is the recommended choice for your 1957-1958 International A112 XI. However, if cost is a concern or if the seal is not readily available, consider exploring aftermarket options for a more budget-friendly alternative. Always ensure that the aftermarket part is compatible with your transmission and meets the required specifications before making a purchase.

Details:

specifications differentialsdepo:

• for models: A112
• for years: 1957–1958
• brand: National
• mpn: Sx-beq6
• placement on vehicle: Transmission Gaskets Sealing Systems
• type: Manual Transmission Input Shaft Seal
• item length: 3.250
• manufacturer warranty: 1 Year
• ipn: C366 86-58
• compatible make: International
• compatible year: 1958 1957
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Manual Transmission Input Shaft Seal

returns differentialsdepo:

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

seller differentialsdepo:

• rating: 98.8%
• city: indianapolis, indiana
• # reviews: 561422

offer differentialsdepo:

• options: ship-to-home
• availability: in stock
• sold #: 16
• in stock #: 1
• price: $17.98
• item condition: New
• started: july 29, 2025

payments differentialsdepo:

• credit card: discover
• wallet: google-pay
• other

general differentialsdepo:

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

shipping differentialsdepo:

• transit: 3-5 days
• service: standard, expedited
• class: standard, expedited
• type: fixed