BMW Automatic Transmission Gearbox 400-50721 2.5L

( Manufacturer Part Number: 328I ), ( Part Type: Transmission ), ( Conditions Options: A ), ( Genuine Oem: Yes ), ( Ipn: 400-50721 07 08 128i 323i ), ( Descriptionpartcondition: Tested And Working / Mileage Is In Listing / If You Have Any Ques ), ( Universal Fitment: No ), ( Oe/oem Part Number: 3.0l V6 6 Cylinder ), ( Manufacturer Warranty: 90 Day ), ( Transmission Type: Automatic ), ( Drive Type: Rwd )

Review BMW Automatic Transmission 2.5l Gearbox Canada Market Speed fits 328I 128I 323I 2007–2008

BMW E46 2.5L Automatic Transmission 400-50721 (2007-2008 128i, 323i) Product Description

Experience the epitome of luxury and performance with our BMW E46 2.5L Automatic Transmission 400-50721, designed for the 2007-2008 model year 128i and 323i. This gearbox, a testament to BMW's engineering excellence, is a seamless blend of power, efficiency, and sophistication, ensuring an unparalleled driving experience.

The 2.5L inline-6 engine, paired with the advanced 5-speed automatic transmission, delivers a balanced and responsive performance. The automatic transmission offers smooth, effortless shifts, while the 2.5L engine provides a robust and refined power output, making this BMW a joy to drive both in city traffic and on highways.

This BMW 400-50721 transmission is meticulously maintained and tested to ensure optimal performance. It comes with all necessary seals, gaskets, and components to facilitate a hassle-free installation. The gearbox is equipped with advanced electronics and hydraulics that work in harmony to deliver a smooth and seamless driving experience.

In terms of durability, the BMW E46 2.5L Automatic Transmission 400-50721 is second to none. Its robust design and high-quality materials ensure long-lasting performance, even under heavy use. Furthermore, the transmission is built to withstand the rigors of daily driving, making it an ideal choice for both everyday commuting and weekend road trips.

In conclusion, our BMW E46 2.5L Automatic Transmission 400-50721 is not just a replacement part; it's an investment in unmatched performance, reliability, and luxury. Whether you're a BMW enthusiast or simply looking for a reliable, high-performing vehicle, this transmission is an excellent choice for your 2007-2008 128i or 323i.

BMW 4 Series (E92), specifically the 128i and 323i models with a 2.5L automatic transmission and 2007-2008 production years, have their own unique set of pros and cons.

1. Performance: These models come with a 2.5L inline-6 engine, which delivers a smooth and powerful drive, especially for daily commuting and highway driving.

2. Handling: BMW is known for its exceptional handling, and the E92 series is no exception. The car offers responsive steering, agility, and stability.

3. Interior: The interior of the E92 series is luxurious and well-appointed, with high-quality materials and a driver-oriented cockpit design.

4. Reliability (if well-maintained): With regular maintenance, these BMWs can be quite reliable, providing years of enjoyable driving.

1. Fuel Efficiency: The inline-6 engine is powerful but not very fuel-efficient, especially when compared to similar-sized vehicles with smaller engines.

2. Cost of Maintenance: BMWs are known for their high maintenance costs, and the E92 series is no exception. Regular servicing and potential repair costs can add up over time.

3. Rear Visibility: The sloping roofline and small rear windows can make it difficult to see when reversing or changing lanes.

4. Space: While the interior is luxurious, the E92 series is not particularly spacious, especially in the back seats and trunk.

The BMW E92 128i and 323i automatic transmission models are great choices for those seeking a fun-to-drive, luxurious, and powerful vehicle. However, potential buyers should be prepared for higher maintenance costs, potential fuel inefficiency, limited space, and reduced rear visibility. It would be best to consider these factors, along with the car's condition, maintenance history, and price, before making a purchase decision.

If you can afford the maintenance costs and appreciate the driving dynamics and luxury of the E92 series, it could be an excellent choice. However, it would be wise to test-drive the vehicle, have it inspected by a trusted mechanic, and negotiate a fair price to minimize potential issues and costs. Consider comparing the E92 series with other luxury sedans from the same period to ensure you're making the best choice for your needs and budget.

Details:

BMW Automatic Transmission 2.5L Gearbox Canada Market 6 Speed 2007 2008 323I. Vehicle Fitment Chart: BMW 128I 08 AT; 6 speed, 323I 07-08 SD, Canada market, 328I 07 Speed, RWD, excl. Engines are Sold as Long Blocks / Transmissions come with TCM and Torque Converter.231K MILES. There is a 90-Day Part Warranty on Tested Engines / Transmissions.

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specifications autotransmissionsgo:

• for models: 328i, 128i, 323i
• for makes: Bmw
• for years: 2007-2008
• mpn: 328i
• part type: Transmission
• conditions options: A
• genuine oem: Yes
• ipn: 400-50721 07 08 128i 323i
• descriptionpartcondition: Tested And Working / Mileage Is In Listing / If You Have Any Ques
• universal fitment: No
• oe/oem part number: 3.0l V6 6 Cylinder
• manufacturer warranty: 90 Day
• transmission type: Automatic
• drive type: Rwd

seller autotransmissionsgo:

• # reviews: 1501
• city: Saint Paul, Minnesota
• rating: 98.7%

offer autotransmissionsgo:

• sold: 0
• availability: In Stock
• started: November 24, 2025
• options: Ship-to-home
• best offers: True
• quantity: 1

shipping autotransmissionsgo:

• type: Fixed
• class: Freight
• cost: $175.00
• service: Flat Rate Freight

returns autotransmissionsgo:

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

payments autotransmissionsgo:

• credit card: Visa
• other
• wallet: Google-pay

general autotransmissionsgo:

• condition: Used
• Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain

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