What is the main function of an idler pulley?

An idler pulley's primary job is to guide the serpentine belt and maintain the correct tension on it. This ensures that all the accessories driven by the belt, like the alternator and power steering pump, receive consistent power.

What makes Gates a reputable brand for engine components?

Gates has a long-standing reputation for producing reliable and durable engine components. They are known for their expertise in belt drive systems and related parts, making them a trusted choice for many vehicle applications.

Does this idler pulley come with any mounting hardware?

This Gates DriveAlign Idler Pulley (38071) is sold individually and typically does not include mounting hardware. It is recommended to inspect your existing hardware during installation and replace it if necessary.

Gates DriveAlign Idler Pulley 38071 - BMW 3/5 Series, M3, X3

Name: Gates BMW 3/5 Series / M3 / X3 / X5 / Z3 (includes 318 Series) DriveAlign Idler Pulley
Brand: Gates
Price: 47.55 USD
Availability: InStock

Gates BMW 3/5 Series / M3 / X3 / X5 / Z3 (includes 318 Series) DriveAlign Idler Pulley

$47.55

In Stock

Gates is known for reliable engine components. This DriveAlign idler pulley fits many BMW 3/5 Series, M3, X3, X5, and Z3 models.

Key Features

Fits 26+ BMW vehicle make/model combinations.
Gates is known for reliable engine components.
Maintains proper serpentine belt tension.
Ensures smooth operation of accessory drive components.
Durable construction for engine bay conditions.
Designed for a direct fit installation.

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Product Details

Gates is a well-known name for reliable engine components, and their DriveAlign Idler Pulley is built to keep your BMW's accessory drive system running smoothly. This pulley is designed to replace the original idler pulley on a wide range of BMW models, including many 3 Series, 5 Series, M3, X3, X5, and Z3 vehicles. A properly functioning idler pulley is crucial for maintaining the correct tension on your serpentine belt, ensuring that components like your alternator, power steering pump, and air conditioning compressor operate as they should.

This DriveAlign idler pulley is constructed with durable materials to withstand the rigors of engine bay operation. It's designed to fit right, making installation straightforward for mechanics and DIYers alike. By ensuring consistent belt tension and smooth rotation, this pulley helps prevent premature belt wear and keeps your engine's accessories working efficiently. It's a solid option for restoring proper function to your BMW's accessory drive system.