BMW 11-21-7-849-243 Engine Crankshaft Bearing M2-M4-M3-X4

( Model: M2 M4 M3 X4 ), ( Part Type: Bearing Engine Crankshaft ), ( Manufacturer Part Number: 11-21-7-849-243 ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Year: 2015 2016 2017 2018 2019 2020 2021 ), ( Parts Included: Only Part Reference 31 On The Diagram Is Included )

Review BMW Genuine Engine Crankshaft Main Bearing fits 2015–2021

The BMW 11-21-7-849-243 engine crankshaft bearing is a crucial component in the powertrain system of select BMW models produced between 2015 and 2021. This component is responsible for supporting the rotational motion of the crankshaft, which in turn transmits power from the engine to the transmission.

This BMW crankshaft bearing is meticulously engineered to provide exceptional durability and reliability. It is manufactured using high-quality materials, including a steel inner race and a brass outer race, which ensure robustness and resistance to wear and tear. The rolling elements are made of tempered steel, providing strength and the ability to withstand the heavy loads generated during engine operation.

The BMW 11-21-7-849-243 engine crankshaft bearing also features a sophisticated design that optimizes its lubrication system. This includes a deep groove design for the rolling elements, which helps maintain an even film of oil between the bearing surfaces, reducing friction and ensuring smooth engine operation. Additionally, the bearing is supplied with a thin film of high-quality grease for added protection during installation and initial operation.

This BMW crankshaft bearing is specifically designed to fit select BMW models, ensuring a precise and secure fit within the engine. It is important to note that using an incorrect or incompatible crankshaft bearing can lead to serious engine damage and potential safety hazards.

Installation of the BMW 11-21-7-849-243 engine crankshaft bearing requires expertise and precision, as it involves working in close proximity to moving engine components. It is highly recommended that this repair be performed by a qualified and experienced BMW technician to ensure proper installation and to minimize the risk of engine damage.

Overall, the BMW 11-21-7-849-243 engine crankshaft bearing is an essential component for maintaining the performance and longevity of select BMW models. Its robust design, optimized lubrication system, and precise fit make it a reliable choice for BMW owners seeking top-tier engine components.

Buying a BMW crankshaft bearing for a 11-21-7-849-243 engine from the years 2015 to 2021 involves consideration of several factors to help make an informed decision. Here are some potential pros and cons:

1. OEM (Original Equipment Manufacturer) Part: The BMW crankshaft bearing is an original part designed specifically for your BMW engine. This means it meets the original equipment specifications and should provide reliable performance.

2. Ensures Smooth Engine Operation: A worn-out crankshaft bearing can cause engine knocking, vibration, and other issues that can negatively impact engine performance. Replacing it with a new one can help restore smooth operation.

3. Maintains Engine Longevity: Regularly replacing worn-out engine components, such as crankshaft bearings, can help extend the life of your engine and prevent more extensive repairs or replacements down the line.

1. Cost: BMW parts can be quite expensive, and a crankshaft bearing is a significant component. The cost may be a deterrent for some buyers.

2. Installation Complexity: Installing a crankshaft bearing is a complex process that typically requires specialized tools and knowledge. If you're not comfortable performing the installation yourself, you'll need to pay for professional labor.

3. Potential for Additional Repairs: In some cases, a worn-out crankshaft bearing may indicate other underlying engine issues. Replacing the bearing could lead to the discovery of additional repairs that will add to the overall cost.

Considering the pros and cons, a BMW crankshaft bearing for the 11-21-7-849-243 engine is an essential investment to ensure the reliable operation and longevity of your BMW. The high cost and installation complexity are potential drawbacks, but the benefits of maintaining engine performance and preventing more extensive repairs in the future may outweigh these concerns for many BMW owners.

If you're experiencing issues related to a crankshaft bearing in your BMW engine, it's recommended to consult a professional mechanic to assess the condition of the engine and provide an accurate diagnosis. They can help you determine whether replacing the crankshaft bearing is the best course of action and guide you through the process.

Details:

Main bearings. Parts must be resalable and in the original packaging. Do not disseminate, distribute or copy through any medium whatsoever. Electrical parts are not returnable.

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. BMW Parts Hub support.

part #: 11217849243 prices

• $30.62-$367.99

specifications engibearing:

• for makes: Bmw
• for years: 2015-2021
• model#: M2 M4 M3 X4
• part type: Bearing Engine Crankshaft
• manufacturer part number: 11-21-7-849-243
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• year: 2015 2016 2017 2018 2019 2020 2021
• parts included: Only Part Reference 31 On The Diagram Is Included

shipping engibearing:

• transit: 4-11 Days
• class: Standard
• service: UPS Ground
• carrier: UPS
• type: Fixed
• cost: $12.32

returns engibearing:

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

offer engibearing:

• quantity: 4
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: February 7, 2026

payments engibearing:

• other
• credit card: Diners-club
• wallet: Apple-pay

general engibearing:

• Car Truck Parts Accessories > Engines Engine Parts > Engine Bearings
• condition: New

seller engibearing:

• city: West Chester, Pennsylvania
• rating: 99.1%
• # reviews: 530

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