BMW 11-31-1-747-017 Engine Timing Chain Tensioner

( Manufacturer Part Number: 11-31-1-747-017 ), ( Model: 750IL 850CI 850CSI ), ( Part Type: Timing Engine Chain ), ( Genuine Oem: Yes ), ( Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 1994 1995 1996 1997 1998 1999 2000 2001 ), ( Parts Included: Only Part Reference 21 On The Diagram Is Included )

Review BMW Genuine Engine Timing Chain Tensioner fits 750IL 1994–2001

The BMW 11-31-1-747-017 engine timing chain tensioner is an essential component of the BMW's 4-cylinder N20 engine, found in various models such as the 1 Series, 3 Series, and X1 between the years 2009 and 2015. This tensioner's primary function is to maintain the proper tension of the engine's timing chain, ensuring optimal engine performance and longevity.

The BMW 11-31-1-747-017 engine timing chain tensioner is a complex assembly consisting of a pulley, a tensioner arm, and a hydraulic actuator. The tensioner arm is connected to the engine's timing chain and moves in response to variations in engine speed, ensuring that the chain remains properly tensioned at all times. The hydraulic actuator utilizes engine oil pressure to adjust the tensioner arm, providing the necessary force to keep the timing chain in place and running smoothly.

The BMW 11-31-1-747-017 engine timing chain tensioner is precision-engineered using high-quality materials to ensure durability and reliability. The pulley is machined from a single piece of aluminum, while the tensioner arm and hydraulic actuator are made from robust steel components. The tensioner's design allows for efficient and effective operation, minimizing energy loss and maximizing power delivery to the wheels.

This BMW timing chain tensioner is an OEM (Original Equipment Manufacturer) part, meaning it is a direct replacement for the original component that came with your BMW vehicle. Installing this new tensioner ensures that your engine continues to operate at its peak performance and reduces the risk of costly repairs or breakdowns caused by a worn-out or failing tensioner.

In summary, the BMW 11-31-1-747-017 engine timing chain tensioner is a crucial component that keeps your BMW's engine running efficiently and reliably. This precision-engineered part utilizes a hydraulic actuator to maintain proper tension of the timing chain, ensuring optimal engine performance and longevity. As an OEM part, it is a direct replacement for the original component and is essential for maintaining your BMW's overall health and driving experience.

1. Reliability: A faulty timing chain tensioner can cause timing chain issues, leading to engine misfires, rough idling, or even complete engine failure. By replacing the faulty tensioner with a new one, you can ensure the reliability and longevity of your engine.

2. Smooth Engine Performance: A properly functioning timing chain tensioner is crucial for maintaining consistent engine performance. By addressing this component, you can improve your vehicle's overall driving experience.

3. Peace of Mind: Replacing a faulty timing chain tensioner can provide peace of mind, knowing that you've addressed a potential issue before it causes more extensive damage.

1. Cost: The cost of purchasing and installing a new BMW 11-31-1-747-017 engine timing chain tensioner can be significant, depending on labor costs and the availability of the part.

2. Installation Complexity: The installation process for this component can be intricate and time-consuming, requiring specialized tools and knowledge. Attempting an installation without the proper resources can lead to complications or even damage to other components.

3. Potential for Additional Repairs: Once you've identified the need for a new timing chain tensioner, it's essential to consider that other related components may also require attention. For instance, if the timing chain itself is worn, it might need to be replaced as well.

The decision to buy and install a BMW 11-31-1-747-017 engine timing chain tensioner depends on various factors, including the current condition of your engine, your budget, and your willingness to invest time and resources into the repair. While the upfront cost and potential for additional repairs can be daunting, addressing this issue proactively can save you from more extensive engine damage and costlier repairs down the line.

If you suspect that your BMW's engine timing chain tensioner is faulty or worn, it's recommended that you consult a trusted mechanic for an inspection and repair estimate. They can help you determine the extent of the issue and provide you with an accurate cost breakdown, allowing you to make an informed decision about whether to proceed with the repair. In the long run, addressing this problem will help ensure your engine's reliability and longevity.

Details:

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Accurate fitment for all BMW model's. Genuine BMW Parts. Parts must be resalable and in the original packaging.

We proudly support BMW drivers, independent repair facilities, and DIY enthusiasts throughout the Chicago land area across country. Electrical parts are not returnable.

part #: 11311747017 prices

• $122.79-$235.60

specifications tensionpull:

• for makes: Bmw
• for years: 1994-2001
• mpn: 11-31-1-747-017
• model: 750il 850ci 850csi
• part type: Timing Engine Chain
• genuine oem: Yes
• warranty: 1 Year
• fitment type: Direct Replacement
• year: 1994 1995 1996 1997 1998 1999 2000 2001
• parts included: Only Part Reference 21 On The Diagram Is Included

seller tensionpull:

• # reviews: 0
• city: Elmhurst, Illinois
• rating: 0.0%

offer tensionpull:

• sold: 0
• availability: In Stock
• started: December 18, 2025
• options: Ship-to-home
• quantity: 3

payments tensionpull:

• credit card: Visa
• wallet: Paypal
• other

general tensionpull:

• condition: New
• Engines Engine Parts > Timing Components Kits > Tensioners Pulleys

shipping tensionpull:

• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air Saver
• type: Fixed
• carrier: UPS
• class: Standard, Expedited, One-day
• transit: 4-8 Days
• cost: $0.00

returns tensionpull:

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

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