SX-4F34 NATIONAL Transmission Shaft Bearing MX-5 Mazda Miata

Review NATIONAL Transmission Input Shaft Bearing For Mazda for MAZDA MIATA MX-5 PR 2006–2015

The National SX-4F34 transmission shaft bearing is a vital component for Mazda MX-5 Miata vehicles manufactured between 2006 and 2015. This bearing plays a crucial role in the transmission system by supporting the transmission shaft and reducing friction between moving parts.

This bearing is specifically designed and engineered to meet the OEM (original equipment manufacturer) specifications of Mazda. It features a high-quality steel housing that provides superior strength and durability. The inside surface of the housing is lined with a premium, pre-lubricated bronze bearing material. This material is known for its excellent load-carrying capacity and resistance to wear, ensuring a smooth and efficient operation of the transmission shaft.

The National SX-4F34 transmission shaft bearing is also designed to minimize noise and vibration. The precision-machined surface and the tight tolerances ensure a perfect fit between the bearing and the shaft, reducing the chances of unwanted noise and vibration.

Installation of this bearing is straightforward and can typically be completed as a DIY (do-it-yourself) project by an experienced home mechanic. However, if you prefer to have it installed by a professional, most auto repair shops will have the necessary tools and expertise to complete the job in a timely and efficient manner.

When it comes to maintenance, the National SX-4F34 transmission shaft bearing requires very little attention. The pre-lubricated bronze material provides long-lasting performance, and the housing is designed to protect the bearing from contaminants and moisture. However, it's always a good idea to check the transmission fluid level and condition regularly to ensure optimal performance of the transmission system.

In summary, the National SX-4F34 transmission shaft bearing is a high-quality, OEM-specification component designed to provide superior strength, durability, and smooth operation for Mazda MX-5 Miata vehicles manufactured between 2006 and 2015. With its precision engineering and premium materials, this bearing is an excellent choice for those seeking reliable and efficient transmission performance.

Buying a national SX-4F34 transmission shaft bearing for a 2006-2015 Mazda MX-5 Miata can be a crucial decision for maintaining the performance and longevity of your vehicle. Here are some pros and cons to consider before making a purchase:

1. OEM Quality: The National SX-4F34 transmission shaft bearing is an original equipment manufacturer (OEM) part, meaning it is specifically designed and manufactured to meet the original specifications of your Mazda Miata.

2. Enhanced Durability: A new transmission shaft bearing can help prevent common issues such as transmission slipping, noise, and vibration, which can save you from costly repairs down the line.

3. Peace of Mind: By using an OEM part, you can have confidence that the part is designed to work optimally with your vehicle and that it comes with a warranty.

4. Improved Performance: A new transmission shaft bearing can help improve the overall performance of your Mazda Miata by ensuring that power is transmitted smoothly from the engine to the transmission.

1. Cost: Replacing a transmission shaft bearing can be an expensive repair, especially when using an OEM part. The cost of the part alone can range from $150 to $300, and labor costs can add another $200 to $400 or more.

2. Time: Installing a new transmission shaft bearing can be a time-consuming process, especially if you're not experienced in automotive repair. It may take several hours or even a day to complete the repair.

3. Availability: Depending on where you live, it may be difficult to find a local parts supplier that carries the National SX-4F34 transmission shaft bearing. You may need to order the part online and wait for it to be shipped.

In conclusion, buying a National SX-4F34 transmission shaft bearing for your 2006-2015 Mazda MX-5 Miata can be a worthwhile investment to ensure the longevity and performance of your vehicle. While the cost and time involved in the repair may be a deterrent, the peace of mind and potential cost savings from avoiding more significant transmission repairs down the line can make it a wise decision. If you're experiencing transmission issues or simply want to prevent future problems, consider investing in a new OEM transmission shaft bearing.

If you decide to purchase a National SX-4F34 transmission shaft bearing for your Mazda Miata, it's recommended that you have the repair done by a professional mechanic to ensure that the part is installed correctly and that any related issues are addressed. You can also consider purchasing the part from a reputable auto parts supplier to ensure that you're getting an authentic OEM part.

Details:

National transmission input shaft bearing for 2006 - 2015 Mazda MX-5 Miata Pr: status: in stock.

specifications differentialsdepo:

• for models: Mx-5, Pr, Miata
• for makes: Mazda
• for years: 2006–2015
• brand: National
• mpn: Sx-4f34
• placement on vehicle: Transmission Bearings
• type: Manual Transmission Input Shaft Bearing
• item length: 3.190
• manufacturer warranty: 1 Year
• ipn: C154 80-6
• compatible model: Mx-5 Miata
• compatible year: 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine National Manual Transmission Input Shaft Bearing

returns differentialsdepo:

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

payments differentialsdepo:

• other
• credit card: visa
• wallet: apple-pay

seller differentialsdepo:

• # reviews: 581281
• city: indianapolis, indiana
• rating: 99.0%

offer differentialsdepo:

• in stock #: 4
• prices: $29.78–$51.72
• item condition: New
• started: october 17, 2025
• availability: in stock
• options: ship-to-home
• sold #: 13

shipping differentialsdepo:

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

general differentialsdepo:

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