Driveshaft BMW F30 F31 F32 F34 N20 N26 Rear Output Shaft Left N/S D=31mm 7637445

BMW F30 F31 F32 F34 N20 N26 Rear Left Driveshaft N/S D=31mm is an original drivetrain component from the Driveshafts group, designed for installation on the rear left side of BMW F-series vehicles with N20 and N26 engines. This used driveshaft is a functional service solution that allows for the restoration of correct drive operation while maintaining factory geometry and fit.

Specifications and technical data

• SKU: 7637445
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7637445
• Substitutable numbers: 7637445, 33207637445
• Location on the vehicle: Rear, Left
• Category: Driveshafts

Intended Use and Fitment for BMW Models

The presented driveshaft has been designed for the BMW F platform, encompassing sedan, wagon, coupe, and Gran Turismo body styles with N20 and N26 engines. Its placement on the vehicle is the rear left side, which is crucial for selecting parts within the rear axle. The 31mm working diameter ensures adequate torsional strength for the typical loads encountered in these models.

Technical Characteristics and Role in the Drivetrain

The driveshaft transmits torque from the differential to the wheel, therefore its correct selection directly impacts the stability of the drivetrain, driving comfort, and the durability of other components. The design dedicated to specific BMW models guarantees:

• maintenance of the correct length and working diameter,
• proper positioning of the joints relative to the differential and wheel hub,
• compatibility with the factory suspension system and axle geometry.

Consequently, replacing a damaged driveshaft with the correct component from the Driveshafts category allows for the reduction of vibrations, knocking, and uneven power delivery, which often occur with worn joints or shaft deformation.

Benefits of Using an Original BMW Driveshaft

Using an original driveshaft dedicated to BMW F-series with N20/N26 engines is a solution that helps maintain the factory drivetrain operating parameters. The most significant benefits include:

• factory fitment to the differential and wheel hub,
• maintenance of proper stiffness and resistance to dynamic loads,
• reduced risk of incorrect installation compared to universal aftermarket parts.

A used component allows for economical repair while maintaining the original BMW specification, which is particularly important in cars where driving precision and predictable behavior under load are paramount.

Vehicle Placement and Installation Aspects

The driveshaft's placement as rear left requires attention to the side of installation – swapping sides with other axle components is not permissible due to design differences and operational loads. When selecting parts, it is advisable to verify:

• compatibility with the specific body version within the F30/F31/F32/F34 family,
• the type of differential and drivetrain system used,
• the working diameter of the shaft to avoid installation problems.

A driveshaft selected in this manner allows for efficient installation in a workshop setting, without the need for modifications to other drivetrain components.

Technical Support and Additional Information

This component belongs to the Driveshafts group, which are key components responsible for power transmission in BMW vehicles. If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and require other elements from the same group, such as additional driveshafts, connecting shafts, or components working with the differential, check the available parts in the BMW Driveshafts category.

When selecting and assessing the condition of drivetrain components – including differentials, axles, and driveshafts – a practical guide describing how to analyze wear and avoid common mistakes when purchasing used components will be helpful. More information can be found in the article Used Differentials – What You Should Know About Used Differentials, Sensors, and Drivetrain Systems, which will help you better plan the rear-wheel drive service for your car.