33107555728 BMW Rear Carrier Differential 550I

Review BMW Rear Carrier Differential 3.38 Ratio for 550I 2008–2010

The BMW 33107555728 rear carrier differential is a key component of the drivetrain system in BMW 550i models produced between 2008 and 2010. This differential is specifically designed for the rear axle and is responsible for transmitting engine power to the wheels while also facilitating a smooth and efficient transfer of torque.

The BMW 33107555728 rear carrier differential is a limited-slip unit, meaning that it can distribute power between the wheels more evenly during cornering or when one wheel encounters less traction than the other. This helps to improve stability and handling, making it an essential component for any high-performance vehicle.

The differential housing is made of strong and durable cast iron, while the internal gearing is composed of hardened steel. This combination of materials ensures that the differential can handle the high torque and power outputs of the BMW 550i engine, as well as the demanding driving conditions that this luxury vehicle is often subjected to.

The BMW 33107555728 rear carrier differential also features a sophisticated oil cooling system, which helps to maintain optimal operating temperatures even during prolonged periods of high-speed driving or heavy usage. This not only extends the life of the differential but also helps to ensure consistent performance and reliability.

The differential comes with a factory-installed limited slip differential lock, which provides additional traction and stability during aggressive driving maneuvers. This feature is particularly useful when driving on slippery or uneven road surfaces, such as during inclement weather or when navigating winding mountain roads.

Installation of the BMW 33107555728 rear carrier differential requires the removal of the rear axle assembly, and it is recommended that the installation be performed by a qualified technician to ensure proper alignment and adjustment of the new component. It is also essential to use the correct type and quantity of oil when filling the differential to ensure optimal performance and longevity.

Overall, the BMW 33107555728 rear carrier differential is a high-performance component that is essential for any BMW 550i produced between 2008 and 2010. Its robust design, advanced technology, and superior engineering make it a top choice for enthusiasts and performance drivers who demand the very best from their vehicles.

The BMW 550i (2008-2010) rear carrier differential with a ratio of 3.38 is a significant component of the vehicle's powertrain system. This differential facilitates the transfer of power from the engine to the wheels, especially during cornering and acceleration. Here are some potential pros and cons of buying this specific BMW differential.

1. Improved Performance: A high-performance differential like the 3.38 can enhance the driving experience by providing better traction and power delivery to the wheels. This results in improved acceleration, smoother power transfer, and better handling.

2. Durability: BMW is known for manufacturing high-quality parts, and this differential is no exception. It is designed to withstand the rigors of high-performance driving and is built to last.

3. Availability: Aftermarket availability is good for this differential, making it easier to find and purchase if needed. This can be especially beneficial for BMW owners who want a reliable and high-performing replacement.

1. Cost: The BMW 550i differential 3.38 is a high-performance part, and the cost reflects that. It may be more expensive than the stock differential, making it a significant investment for some BMW owners.

2. Installation: Installing a differential is a complex process that requires specialized knowledge and tools. It is not a DIY job for most people, and the cost of professional installation can add to the overall cost of the part.

3. Risk of Damage: Differentials are subjected to a lot of stress and wear during normal operation. Installing a high-performance differential like the 3.38 increases the risk of damage during aggressive driving or improper use.

The BMW 550i (2008-2010) rear carrier differential 3.38 is a high-performance component that can significantly improve the driving experience of the vehicle. However, it comes with a higher cost and the risk of damage during aggressive driving. If you are a BMW enthusiast who values performance and is willing to invest in a reliable and durable part, then this differential is a worthwhile consideration. However, if you are on a budget or prefer a more conservative driving style, then a stock differential may be a more suitable option.

If you are in the market for a high-performance differential for your BMW 550i and are willing to invest in a reliable and durable part, then the 3.38 rear carrier differential is a great option to consider. However, it is essential to ensure that you have the necessary knowledge, tools, and expertise to install it properly to avoid any potential damage. If you are unsure about the installation process, it is recommended that you seek professional help from a certified BMW mechanic.

Details:

Add $100 for residential delivery. If there has been any damage to the item during shipping inspect see if you can still use it or not. Bmw 550I 08-10 3.38 ratio. Please compare part numbers before purchasing.

Shipping most items ship via ups ground. There may be small nicks, scratches and fading, common occurrences on a used part. Warranty periods begin at date of purchase. Warranty all parts sold are covered with our standard 90 day.

If you can still use the item, notate damage on delivery ticket that driver is keeping then hand it back to them. Once an item is purchased extended warranty cannot be added to the order. All parts are guaranteed, including electrical. Add $85 for lift gate delivery.

specifications differentialsdepo:

• for models: 550i
• for years: 2008–2010
• brand: Bmw
• mpn: 33107555728
• country of origin: Germany
• genuine oem: Yes
• ipn: 440-50285
• descriptionpartcondition: Carrier Assembly 3.38 Ratio Interchange Notes
• universal fitment: No
• manufacturer warranty: 3 Months
• warranty: 90 Day
• placement on vehicle: Rear
• gear ratio: 3.38
• axle type: Rear Axle
• type: Differential Housing Assembly

offer differentialsdepo:

• options: ship-to-home
• best offers: true
• started: november 21, 2025
• prices: $410.08–$1750.00
• item condition:
  • Used
  • Remanufactured
• in stock #: 3
• availability: in stock
• sold #: 16

shipping differentialsdepo:

• class: standard
• transit: 3-7 days
• carrier: ups
• type: fixed
• service: ups ground

general differentialsdepo:

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

returns differentialsdepo:

• policy: returns accepted
• time: 60 days
• paid by: seller

seller differentialsdepo:

• city: haltom city, texas
• rating: 99.7%
• # reviews: 6219

payments differentialsdepo:

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