CROWN AUTOMOTIVE L4304219 Rear Mainshaft Bearing

( Brand: Crown Automotive ), ( Manufacturer Part Number: L4304219 ), ( Part Type: Bearing ), ( Construction: Metal ), ( Axle: Any ), ( Color: Unpainted ), ( Transmission: T150.varies By Application.t90.t86.t85 ), ( Product Length: 3.25 ), ( Position: Rear ), ( Item Height: 1.25 ), ( Hardware Included: Use Existing Hardware ), ( Packaging: Box ), ( Fitment Type: Performance/custom )

Review CROWN AUTOMOTIVE Mainshaft Bearing Rear Fits Jeep fits FC150 1957–1964

Introducing the Crown Automotive L4304219 mainshaft bearing, specifically designed for the rear Jeep models from 1957 to 1964 with the FC150 transmission. This high-quality replacement part is engineered to provide reliable performance and extend the life of your vehicle's drivetrain.

The mainshaft bearing is a crucial component in the transmission system, responsible for supporting the mainshaft and allowing it to rotate smoothly. The Crown L4304219 bearing is manufactured using premium materials and advanced machining processes to ensure a perfect fit, optimal function, and enhanced durability.

This bearing features a robust design with a double-lipped seal that effectively prevents transmission fluid leakage, keeping your transmission system well-lubricated and protected from external contaminants. The seal is made of a durable, heat-resistant material that can withstand the high temperatures and heavy loads generated by the transmission.

The Crown L4304219 mainshaft bearing also comes with a precision-machined inner race that guarantees a snug fit on the mainshaft and minimizes any potential play or vibration. This results in a quieter and smoother operation of your vehicle.

Installation of this bearing is straightforward, with no need for any specialized tools or extensive mechanical knowledge. Simply remove the old bearing, clean the area, and install the new Crown L4304219 mainshaft bearing.

In conclusion, the Crown Automotive L4304219 mainshaft bearing is the ideal solution for Jeep owners looking to maintain or restore the drivetrain of their 1957 to 1964 FC150 rear models. This high-performance replacement part offers excellent fitment, durability, and functionality, making it a wise investment for those who value the longevity and reliability of their vehicles.

Pros and Cons of Buying a Crown MAINSHAFT BEARING (L4304219) for Rear Jeep FC150 (1957-1964)

The Crown MAINSHAFT BEARING (L4304219) is a replacement part designed for the rear Jeep FC150 (1957-1964). This bearing supports the mainshaft and ensures smooth operation of the drivetrain. In this article, we will discuss the advantages and disadvantages of purchasing this part.

1. Improved Performance: A new mainshaft bearing can lead to better drivetrain performance. It can reduce vibrations, noise, and harshness, making your Jeep feel smoother and more enjoyable to drive.

2. Longevity: Replacing a worn-out bearing with a new one can increase the longevity of your Jeep's drivetrain. A faulty bearing can cause damage to other components, leading to costly repairs.

3. Availability: The Crown MAINSHAFT BEARING (L4304219) is readily available from various automotive parts suppliers. This means that you can easily find and purchase the part when needed.

4. Relatively Affordable: The cost of the Crown MAINSHAFT BEARING (L4304219) is relatively affordable compared to other major drivetrain repairs. This makes it a cost-effective solution for maintaining your Jeep.

1. Installation Complexity: Installing a new mainshaft bearing can be a complex process. It requires specialized tools and knowledge, which may necessitate hiring a professional mechanic.

2. Time-Consuming: The installation process can take several hours, depending on the mechanic's experience and the complexity of the job.

3. Potential for Damage: During the installation process, there is a risk of damaging other drivetrain components. This can lead to additional repair costs.

4. Ongoing Maintenance: A new mainshaft bearing is not a permanent solution. It is a part of the drivetrain that wears out over time, and you may need to replace it again in the future.

The Crown MAINSHAFT BEARING (L4304219) for rear Jeep FC150 (1957-1964) offers several advantages, including improved performance, longevity, availability, and affordability. However, it also comes with some disadvantages, such as installation complexity, time-consuming installation, potential for damage, and ongoing maintenance.

If you are experiencing issues with your Jeep's drivetrain, it is essential to address them promptly. A worn-out mainshaft bearing can lead to costly repairs if left unattended. Considering the pros and cons discussed above, it is recommended to replace the Crown MAINSHAFT BEARING (L4304219) if you notice any symptoms of failure, such as noise, vibrations, or harshness. If you are not confident in your mechanical abilities, it is best to hire a professional mechanic to perform the installation.

Details:

part #: l4304219 price

• $41.27

specifications manutransmission:

• for models: Fc150
• for makes: Jeep
• for years: 1957-1964
• brand: Crown Automotive
• mpn: L4304219
• part type: Bearing
• construction: Metal
• axle: Any
• color: Unpainted
• transmission: T150.varies By Application.t90.t86.t85
• product length: 3.25
• position: Rear
• item height: 1.25
• hardware included: Use Existing Hardware
• packaging: Box
• fitment type: Performance/custom

shipping manutransmission:

• carrier: UPS
• class: Standard
• transit: 3-5 Days
• service: UPS Ground
• cost: $0.00
• type: Fixed

offer manutransmission:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 5
• started: July 19, 2025

seller manutransmission:

• rating: 98.4%
• city: Compton, California
• # reviews: 508

general manutransmission:

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

returns manutransmission:

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

payments manutransmission:

• wallet: Apple-pay
• other
• credit card: Mastercard

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