BMW 11-14-1-745-093 Rear Crankshaft Cover

( Manufacturer Part Number: 11-14-1-745-093 ), ( Part Type: Cover Crankshaft ), ( Part Description: Set Of Covers ), ( Items Included: As Pictured ), ( Other Name: Rear Main Seal Retainer, Retainer ), ( Universal Fitment: No ), ( California Prop 65 Warning: This Product Contains A Chemical Known To The State Of California To Cause Cancer And Reproductive Harm. )

Review BMW Rear Crankshaft Cover And More fits 530I 540I 740I 740IL

The **BMW N54/N55/N63/N63A rear crankshaft cover (part number 11-14-1-745-093)** is a precision-engineered component designed specifically for BMW s high-performance inline-six engines, including the **530i, 540i, 740i, and 740iL** models equipped with the N54 (turbocharged), N55 (direct-injection turbo), and N63 (high-performance twin-turbo) engine variants. This cover serves as a critical sealing barrier between the crankshaft s rotating assembly and the engine bay s internal environment, ensuring optimal lubrication retention, minimizing oil consumption, and preventing contamination from external debris or moisture. Crafted from high-grade cast aluminum, the cover is engineered to withstand the extreme thermal and mechanical stresses inherent in BMW s turbocharged powerplants, where elevated oil temperatures and high-pressure turbocharging systems demand robust durability. Its design incorporates precision-machined gaskets and mounting points to guarantee a perfect seal, reducing the risk of oil leaks a common issue in high-mileage or modified engines. Beyond its functional role, this component also contributes to the engine s overall efficiency by maintaining proper crankshaft alignment and reducing parasitic drag, which is particularly vital in performance-oriented applications. Whether installed in a stock or modified setup, the **11-14-1-745-093** ensures reliable operation, making it an essential replacement for engines requiring a fresh seal, whether due to wear, maintenance, or aftermarket modifications. Its compatibility with a range of BMW models underscores its versatility, providing a seamless fit for both original equipment and performance-focused builds.

### **Pros and Cons of buying a BMW Part Number 11-14-1-745-093 (Rear Crankshaft Cover) for 530i, 540i, 740i, 740iL**

1. **OEM Quality and Fit** This is a genuine BMW part, meaning it is designed to match the exact specifications of your vehicle s engine bay. It ensures proper sealing, alignment, and functionality, reducing the risk of leaks or misalignment issues.

2. **Long-Term Reliability** BMW s original components are built to last, especially when sourced from authorized dealers or reputable suppliers. A properly installed crankshaft cover helps maintain engine integrity and prevents oil leaks or contamination.

3. **Compatibility with Aftermarket Mods** If you plan to modify your engine (e.g., forced induction, turbo upgrades, or performance tuning), an OEM crankshaft cover ensures compatibility with aftermarket parts without compromising fitment.

4. **Warranty Coverage** Purchasing from an authorized BMW dealer or a trusted supplier may include warranty protection, offering peace of mind in case of defects or premature failure.

5. **Prevents Future Issues** A worn or damaged crankshaft cover can lead to oil leaks, crankshaft damage, or even engine failure. Replacing it proactively can save you from costly repairs down the line.

6. **Professional Installation Support** If buying from a BMW specialist or dealership, you may receive expert advice on installation, ensuring it is done correctly the first time.

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1. **High Cost** OEM BMW parts are significantly more expensive than aftermarket alternatives. The price can range from **$200 $400 **, depending on the supplier and region, which may be a barrier for budget-conscious buyers.

2. **Limited Availability Outside Dealerships** While BMW dealerships stock this part, independent mechanics or online retailers may not always have it in stock, requiring extra time or shipping delays.

3. **Potential for Counterfeit Parts** If purchasing from unverified sellers (e.g., eBay, random online marketplaces), there is a risk of receiving a **fake or low-quality replica**, which could fail prematurely or not fit properly.

4. **Installation Complexity** Replacing a crankshaft cover requires removing the engine bay components (e.g., intake manifold, oil filter housing, or timing cover in some cases). If not done carefully, it can lead to **damage to gaskets, seals, or even the crankshaft itself**.

5. **No Immediate Performance Gain** Unlike performance parts, this is a **maintenance/replacement item** it does not improve power, efficiency, or drivability. The benefit is purely **preventative and reliability-focused**.

6. **Depreciation Concerns** If your BMW is older and has significant mileage, the cost of an OEM part may not justify the long-term value, especially if the vehicle is not worth much in resale.

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### **Conclusion**

The **BMW 11-14-1-745-093 rear crankshaft cover** is a **high-quality, necessary replacement part** for maintaining engine health, especially if your vehicle is showing signs of wear (oil leaks, rattling, or visible cracks). The **pros outweigh the cons** if you prioritize **reliability, longevity, and OEM fitment**, but the **high cost and potential installation challenges** must be considered.

If your budget allows and you have access to a **trusted mechanic or BMW specialist**, this is the **best long-term solution**. However, if you are on a tight budget and the part is not urgently needed, a **high-quality aftermarket alternative** (e.g., from **Fel-Pro, Felgen, or Motul**) could be a cost-effective compromise though always verify compatibility and reviews before purchasing.

- **Best Option:** Buy from an **authorized BMW dealer or a reputable BMW parts supplier** (e.g., **RockAuto, BMW Parts USA, or local BMW specialists**) to ensure authenticity and warranty coverage.

- **Budget Alternative:** If the part is not critical, consider a **premium aftermarket brand** (e.g., **Fel-Pro, Motul, or Bosch**) that offers similar sealing performance at a lower cost. Always check for **positive reviews and compatibility** before buying.

- **Installation:** If you lack mechanical experience, **have a professional install it** to avoid damaging surrounding components.

- **Prevention:** If your current cover is still functional but showing signs of wear, **monitor it closely** replacement may not be urgent unless leaks or noise occur.

**Final Verdict:** For most owners, the **OEM part is worth the investment** if the vehicle is well-maintained and valued. If cost is a concern, weigh the risks of delaying replacement against the potential for future engine damage.

Details:

These parts are NOS which is New Part - Old Stock, They may have some minor blemishes and / or discoloration from long-term storage. This has no negative effect on the parts or their performance. This is not acceptable. Part Template BMW Rear Crankshaft Cover - 11-14-1-745-093 For 530I, 540I, 740I, 740IL More.

Part numbers are from the actual packaging and may not have a make/ model reference. Please verify with your local dealer before purchasing. All costs have to be included in the delivered price. Everyone pays the price for this.

part #: 11141745093 prices

• $24.99-$69.38

specifications cranshafengin:

• for models: 530i, 540i, 740i, 740il
• for makes: Bmw
• mpn: 11-14-1-745-093
• part type: Cover Crankshaft
• part description: Set Of Covers
• items included: As Pictured
• other name: Rear Main Seal Retainer, Retainer
• universal fitment: No
• california prop 65 warning: This Product Contains A Chemical Known To The State Of California To Cause Cancer And Reproductive Harm.

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: New other see details

payments cranshafengin:

• credit card: Mastercard
• wallet: Google-pay
• other

offer cranshafengin:

• started: May 4, 2026
• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home

seller cranshafengin:

• city: Bakersfield, California
• # reviews: 2423
• rating: 99.9%

shipping cranshafengin:

• carrier: USPS
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail
• transit: 4-10 Days
• type: Calculated
• cost: $9.35

returns cranshafengin:

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

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