FREIGHTLINER MBA0249978047 Pinion Seal Cascadia Western MT-55G

( Manufacturer Part Number: MBA0249978047 ), ( Part Type: Pinion Seal ), ( Part Number Inter: A0249978047, P0249978047, 0249978047, 0249978047, S-22823 )

Review FREIGHTLINER Pinion Seal Mt55 Cascadia Western fits STAR

Introducing the Freightliner MBA0249978047 pinion seal, an essential component for maintaining the optimal performance of your MT-55G or Mt55 Cascadia Western Star trucks. This pinion seal is specifically engineered for Freightliner models and is designed to provide a reliable seal between the pinion shaft and the differential housing.

The MBA0249978047 pinion seal is manufactured using high-quality materials that ensure durability and resistance to wear and tear. Its unique design features a flexible, yet strong rubber compound that effectively seals the differential and prevents the intrusion of contaminants such as water, debris, and lubricant leaks.

This pinion seal comes with an O-ring, which adds an extra layer of protection against pressure and helps to maintain the integrity of the seal. The O-ring is made of a premium, resilient material that can withstand the extreme temperatures and pressures encountered in heavy-duty applications.

The installation process of the MBA0249978047 pinion seal is straightforward, making it an ideal choice for both professional mechanics and do-it-yourself enthusiasts. To ensure a perfect fit, the seal comes with precise measurements and clear installation instructions. It is essential to follow the instructions carefully to avoid any potential complications during the installation process.

Investing in a high-quality pinion seal like the Freightliner MBA0249978047 is crucial for prolonging the life of your differential assembly and ensuring the smooth operation of your MT-55G or Mt55 Cascadia Western Star truck. Regularly replacing worn-out seals is an essential part of routine maintenance, and the MBA0249978047 is an excellent choice for those looking for a dependable and long-lasting solution.

In summary, the Freightliner MBA0249978047 pinion seal is an essential component for maintaining the performance and longevity of your MT-55G or Mt55 Cascadia Western Star truck. Its high-quality materials, flexible design, and straightforward installation make it a reliable and cost-effective solution for heavy-duty applications.

Freightliner MBA0249978047 pinion seal is a crucial component in the driveline system of Mt-55G Cascadia, Western Star trucks with MT-55 transmission. Replacing a worn-out pinion seal can help prevent potential transmission damage and ensure the proper functioning of the drivetrain. Here are some pros and cons of buying this part to help you make an informed decision.

1. Ensures Proper Functioning: A worn-out pinion seal can cause transmission fluid leaks, which can lead to significant damage to the transmission if left unaddressed. Replacing the pinion seal with a new one can help prevent these issues and ensure the drivetrain functions as intended.

2. Improves Performance: A new pinion seal can help improve the overall performance of the transmission by reducing power loss due to leaks and ensuring proper lubrication.

3. Peace of Mind: Knowing that a critical component like the pinion seal is in good condition can provide peace of mind, especially for commercial vehicle operators who rely on their trucks for their livelihood.

1. Cost: Replacing a pinion seal can be an expensive repair, with the cost of the part alone ranging from $200 to $400, depending on the supplier. Labor costs can add to the overall expense.

2. Time: Replacing a pinion seal requires significant labor and time, as the transmission must be removed from the vehicle to access the seal. This can result in a lengthy repair process, potentially causing downtime for the truck.

While the cost and time involved in replacing a pinion seal can be a significant investment, the benefits of doing so are substantial. A new pinion seal can help prevent transmission damage, improve performance, and provide peace of mind. For commercial vehicle operators who rely on their trucks for their livelihood, the investment in a new pinion seal can help ensure the longevity and proper functioning of their vehicle.

If you suspect that your Freightliner Mt-55G Cascadia, Western Star truck's pinion seal is worn out or leaking, it is recommended to have it replaced as soon as possible. You can consider purchasing the MBA0249978047 pinion seal from a reliable supplier to ensure its quality and compatibility with your vehicle. Additionally, it is advisable to work with a qualified mechanic to ensure the proper installation and functioning of the new pinion seal.

Details:

Mercedes-Benz Trucks: Utilized in heavy-duty diesel applications under the brand. Inner Diameter: Approximately 3.07 inches 78mm. Material: FPM/Vito for high-performance chemical and fluid resistance. Outer Diameter: 4.96 inches 126mm.

Camden, NJ 08104. Western Star: Compatible with various heavy-duty diesel truck model's from this manufacturer. 300 Jefferson St #3a. Please replace such items as required for proper installation.

part #: mba0249978047 prices

• $40.00-$42.41

specifications commerciatruc:

• for models: Star
• for makes: Freightliner
• mpn: Mba0249978047
• part type: Pinion Seal
• part number inter: A0249978047, P0249978047, 0249978047, 0249978047, S-22823

returns commerciatruc:

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

offer commerciatruc:

• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock
• started: February 23, 2026
• best offers: True

shipping commerciatruc:

• class: Economy, Standard
• transit: 4-10 Days
• service: FedEx Ground Economy, USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• cost: $9.66
• carrier: FedEx, USPS
• type: Calculated

payments commerciatruc:

• other
• credit card: Diners-club
• wallet: Paypal

general commerciatruc:

• condition: New other see details
• Parts Accessories > Commercial Truck Parts > Other Commercial Truck Parts

seller commerciatruc:

• # reviews: 1014
• rating: 100.0%
• city: Philadelphia, Pennsylvania

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