BMW 11-21-7-849-235 Engine Crankshaft Bearing M2-M4-M3-X4

( Model: M2 M4 M3 X4 ), ( Part Type: Bearing Engine Crankshaft ), ( Manufacturer Part Number: 11-21-7-849-235 ), ( 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 11-21-7-849-235 engine crankshaft bearing is a crucial component of the BMW 4-cylinder N43 engine, found in various models such as the 1 Series and 3 Series vehicles produced between 2004 and 2013. This precision-engineered part is responsible for reducing friction between the crankshaft and the engine block, ensuring a smooth and efficient operation of the engine.

The crankshaft bearing is a part of the engine's rotating assembly, which includes the crankshaft, connecting rods, pistons, and bearings. This particular component is a deep-groove ball bearing, meaning it utilizes a series of balls arranged in races, which facilitate the bearing's ability to accommodate both radial and axial loads. The balls are held in place by a series of retaining rings and cage structures, ensuring proper alignment and maintaining the bearing's shape under heavy loads.

The BMW 11-21-7-849-235 engine crankshaft bearing is manufactured using high-quality materials such as steel and chrome steel for the races and balls, and brass for the retaining rings. The steel and chrome steel components are heat-treated to improve their strength and durability, while the brass rings are designed to provide a good fit and prevent any potential leaks.

The dimensions of this crankshaft bearing are as follows: outer diameter - 75.5mm, inner diameter - 65.5mm, and length - 71.5mm. The bearing's weight is approximately 325 grams, making it a substantial yet essential part of the engine system.

It is important to note that a faulty crankshaft bearing can lead to catastrophic engine failure. Symptoms of a failing crankshaft bearing may include a loud knocking or clattering sound coming from the engine, increased vibration, and a decrease in engine performance. Regular maintenance and timely replacement of worn-out parts, such as the crankshaft bearing, are essential for the longevity and optimal performance of the BMW engine.

Buying a BMW 11-21-7-849-235 engine crankshaft bearing involves considering several pros and cons before making a decision. This part is an essential component of the engine, and its failure can cause serious issues. Here are some potential advantages and disadvantages of purchasing this BMW crankshaft bearing.

1. OEM Quality: The BMW 11-21-7-849-235 engine crankshaft bearing is an original equipment manufacturer (OEM) part. This means it is designed, manufactured, and tested by BMW to meet their exacting standards. Using an OEM part ensures a proper fit, function, and durability.

2. Reliability: BMW is known for its engineering excellence and attention to detail. A BMW crankshaft bearing, being an OEM part, is likely to be reliable and long-lasting.

3. Warranty: BMW provides a warranty on its parts. Buying an OEM BMW crankshaft bearing guarantees that you will be covered under this warranty, giving you peace of mind.

1. Cost: BMW parts, including the 11-21-7-849-235 engine crankshaft bearing, are often more expensive than aftermarket alternatives. The higher cost may deter some buyers.

2. Availability: Depending on your location and the availability of BMW dealerships, it may take some time to source and receive an OEM BMW crankshaft bearing.

3. Installation: Installing an OEM BMW crankshaft bearing may require specialized tools and knowledge. A professional mechanic may need to be hired for the installation, adding to the overall cost.

The decision to buy a BMW 11-21-7-849-235 engine crankshaft bearing depends on your priorities, budget, and time constraints. If you value reliability, OEM quality, and the peace of mind that comes with a warranty, then purchasing an OEM BMW crankshaft bearing is the best choice. However, if cost is a significant concern, and you are willing to accept the potential risks associated with aftermarket parts, then exploring alternative options may be worthwhile. Ultimately, it's essential to weigh the pros and cons carefully before making your decision.

If you prioritize the longevity and reliability of your BMW engine, and you have the budget for it, purchasing an OEM BMW 11-21-7-849-235 engine crankshaft bearing is the recommended choice. This will ensure a proper fit, function, and durability, giving you confidence in your vehicle's performance. If cost is a concern, consider researching reputable aftermarket part suppliers and comparing their offerings with the OEM part. Be sure to carefully evaluate the quality, reliability, and warranty of any aftermarket alternatives before making your decision.

Details:

In-stock orders ship within 24 hours. Parts must be resalable and in the original packaging. Main bearings.

Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 11217849235 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: 11-21-7-849-235
• 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

payments engibearing:

• credit card: Discover
• other
• wallet: Paypal

general engibearing:

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

offer engibearing:

• quantity: 6
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: May 31, 2025

returns engibearing:

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

shipping engibearing:

• service: Standard, Expedited, Overnight
• type: Fixed
• class: Standard, Expedited, One-day
• cost: $8.95
• transit: 4-10 Days

seller engibearing:

• city: Irvine, California
• rating: 98.9%
• # reviews: 1095

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