SX-4478 TIMKEN Benz Rear Outer Differential Pinion Race

Review TIMKEN Rear Outer Differential Pinion Race For Mercedes-benz for MERCEDES 1965–1973

Introducing the Timken SX-4478 Rear Outer Differential Pinion Race, an essential upgrade for Mercedes-Benz vehicles from 1965 to 1973. Designed to provide superior performance and durability, this high-quality component is engineered to outlast the original equipment.

The Timken SX-4478 Rear Outer Differential Pinion Race is manufactured using Timken's advanced bearing technology. This technology ensures a precise fit, reducing the potential for play and noise in the differential. The raceway surface is treated with Timken's proprietary surface treatment, providing an increased load capacity and improved resistance to wear.

This race is specifically designed for the Mercedes-Benz rear differential application. It features a robust design with a diameter of 44.78mm and an outside length of 62mm. The raceway is machined to exacting specifications, ensuring a perfect fit with the differential pinion and ring gear.

The Timken SX-4478 Rear Outer Differential Pinion Race is made from a high-strength steel alloy, providing excellent load-carrying capacity and resistance to fatigue. The steel is heat-treated to ensure maximum strength and toughness. The race is also precision-machined to provide a smooth, even surface for the rolling elements, reducing friction and heat generation.

Installation of the Timken SX-4478 Rear Outer Differential Pinion Race is straightforward. It is designed to replace the worn-out or damaged original race in the differential. The replacement process involves removing the old race, cleaning the differential housing, and installing the new race. It is recommended to use a new pinion seal during installation to ensure a leak-free differential.

By upgrading to the Timken SX-4478 Rear Outer Differential Pinion Race, you can expect improved performance, durability, and reliability from your Mercedes-Benz vehicle. This race is an excellent investment for enthusiasts looking to maximize the potential of their classic car or for daily drivers seeking peace of mind on the road.

In summary, the Timken SX-4478 Rear Outer Differential Pinion Race is a high-performance, durable upgrade for the Mercedes-Benz rear differential application from 1965 to 1973. Manufactured using advanced bearing technology and heat-treated high-strength steel alloy, this race is designed to outlast the original equipment and provide superior performance. Installing the Timken SX-4478 Rear Outer Differential Pinion Race is a straightforward process and is an excellent investment for any Mercedes-Benz owner seeking improved reliability and performance.

Buying a Timken SX-4478 rear outer differential pinion race for a 1965-1973 Mercedes-Benz can be a good investment for several reasons. Here are some pros and cons to consider:

1. High-quality bearings: Timken is a well-known and reputable brand in the automotive industry. The SX-4478 pinion race is made of high-quality materials and is designed to provide excellent performance and durability.

2. Reduced wear and tear: The pinion race is a critical component of the differential system. Worn-out or damaged pinion races can cause excessive wear and tear on other components, leading to expensive repairs. Replacing the pinion race with a new one can help extend the life of the differential and other related components.

3. Improved performance: A new pinion race can lead to improved performance, as it ensures that the pinion shaft moves smoothly and evenly in the differential. This can result in better acceleration, smoother shifting, and improved fuel efficiency.

4. Peace of mind: By investing in a high-quality aftermarket part like the Timken SX-4478, you can have peace of mind knowing that you have a reliable and durable component installed in your vehicle.

1. Cost: The Timken SX-4478 rear outer differential pinion race can be an expensive investment, especially if you are not mechanically inclined and need to pay for labor costs.

2. Installation complexity: Installing a new pinion race can be a complex and time-consuming process, requiring specialized tools and expertise. If you are not confident in your ability to install the part yourself, you may need to pay for professional installation, which can add to the overall cost.

3. Potential for damage during installation: There is a risk of damaging other components during the installation process, especially if the installation is not done properly. This can result in additional repair costs.

The Timken SX-4478 rear outer differential pinion race is a high-quality aftermarket part that can provide several benefits for your 1965-1973 Mercedes-Benz. These benefits include reduced wear and tear, improved performance, and peace of mind. However, the cost and installation complexity are potential drawbacks.

If you are experiencing issues with your Mercedes-Benz differential and suspect that the pinion race may be the culprit, it may be worth considering the investment in a new Timken SX-4478 pinion race. However, it is important to weigh the potential benefits against the cost and installation complexity before making a decision. If you are not confident in your ability to install the part yourself, it may be best to hire a professional mechanic to do the job for you.

Details:

Timken rear outer differential pinion race for 1965-1973 Mercedes-benz zz: status: in stock.

specifications differentialsdepo:

• for makes: Mercedes
• for years: 1965–1973
• brand: Timken
• mpn: Sx-4478
• placement on vehicle: Driveline Axles Bearings
• type: Differential Pinion Race
• item length: 8.000
• manufacturer warranty: 1 Year
• ipn: C173 80-37
• compatible make: Mercedes-benz
• compatible model: 300sel
• compatible year: 1973 1972 1971 1970 1969 1968 1967 1966 1965
• core charge: Free No Core Charge
• position: Rear Outer
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Timken Differential Pinion Race

seller differentialsdepo:

• rating: 98.8%
• # reviews: 557788
• city: indianapolis, indiana

returns differentialsdepo:

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

offer differentialsdepo:

• prices: $17.42–$53.65
• item condition: New
• options: ship-to-home
• started: june 15, 2025
• in stock #: 3
• availability: in stock
• sold #: 18

shipping differentialsdepo:

• type: fixed
• transit: 5-9 days
• class: standard, expedited
• service: standard, expedited

payments differentialsdepo:

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

general differentialsdepo:

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