BMW 764325704 Engine Crankshaft 240 640 X3X5X6 B58

( Manufacturer Part Number: 764325704 ), ( Part Type: Engine Crankshaft ), ( Items Included: Bearing, Bolts, Seal ), ( Material: Cast Iron ), ( Vintage Part: Yes ), ( Ipn: 1212122 ), ( Manufacturer Warranty: 1 Month ), ( Finish: Polished ), ( Country Of Origin: Germany ), ( Item Weight: 10 Lb )

Review BMW 240 640 B58 Engine Crankshaft Oem fits 340 440 540 740 2016–2022

The **BMW B58 engine crankshaft (part number 764325704)** is a precision-engineered component designed to deliver uncompromising performance, durability, and reliability across BMW s high-performance lineup, including the **2016 2022 2 Series (240i/240d), 3 Series (340i/340d), 4 Series (440i/440d), 5 Series (540i/540d), 6 Series (640i/640d), 7 Series (740i/740d), X3 (x340i/x340d), X5 (x540i/x540d), and X6 (x640i/x640d)**. Engineered from **high-grade forged steel**, this crankshaft is machined to exacting tolerances to withstand the immense stresses of the **B58 twin-turbocharged inline-six engine**, which powers these vehicles with its signature blend of torque and efficiency. The crankshaft s **five main bearings** provide optimal load distribution, reducing friction and enhancing longevity, while its **counterweights** are meticulously balanced to minimize vibration, ensuring a seamless driving experience even at high RPMs. The **forged construction** not only improves strength but also allows for precise weight optimization, contributing to the B58 s reputation for smooth operation and responsiveness. Whether under the hood of a **sport-tuned 240i with M Performance Package** or the refined luxury of a **740i, this crankshaft is a critical backbone of BMW s modern powertrain architecture**, designed to handle the demands of both daily driving and spirited performance. Its compatibility with a range of **N63, N63A, and N63B engine variants** makes it an essential part for enthusiasts seeking to restore or upgrade their BMW s performance while maintaining factory-level reliability. Built to BMW s exacting standards, this crankshaft exemplifies the brand s commitment to engineering excellence, ensuring that every revolution of the engine delivers power with precision and endurance.

### **Pros and Cons of Buying a 2016 2022 BMW 7 Series (B58 Engine, X3/X5/X6, 240 740i)**

#### **Pros**

1. **Strong Performance and Driving Dynamics**

The B58 twin-turbo inline-6 engine (2.0L) delivers impressive power across the range, with outputs from **240 hp (240i) to 600 hp (740i)**. The engine is refined, responsive, and well-suited for both daily driving and spirited performance. The **xDrive all-wheel-drive system** enhances traction, especially in the X3/X5/X6 models.

2. **Luxury and Interior Quality**

The 7 Series is BMW s flagship sedan, offering one of the most luxurious and well-crafted interiors in the market. High-quality materials (Nappa leather, aluminum trim, ambient lighting), a **spacious cabin**, and **premium sound systems** (Bowers & Wilkins in higher trims) make it a standout in executive sedans.

3. **Advanced Technology and Infotainment**

The **iDrive 7 system** (with touchscreen and voice control) integrates seamlessly with **Apple CarPlay, Android Auto, and BMW s ConnectedDrive services**. Higher trims feature **head-up displays, adaptive cruise control, and advanced driver-assistance systems (e.g., BMW Safety Personal)**.

4. **Reliability of the B58 Engine**

The B58 is a robust engine with **low carbon buildup issues** compared to earlier BMW inline-6s. However, **timing chain maintenance** (every 60,000 100,000 miles) is critical to prevent premature wear. With proper maintenance, it is **more reliable than the N55/N63** engines found in older BMWs.

5. **Resale Value and Prestige**

The 7 Series holds its value well due to its **luxury status and desirability**. Owning a BMW 7 Series carries prestige, and the **X3/X5/X6 variants** offer SUV practicality without sacrificing luxury.

6. **Comfort and Ride Quality**

The **air suspension (optional on X5/X6, standard on 7 Series sedan)** provides a smooth, adaptive ride. The **sound insulation** is excellent, making it one of the quietest luxury sedans on the road.

7. **Customization and Aftermarket Support**

BMW s **M Division** offers performance upgrades (e.g., M Performance packages), and the aftermarket provides **tuning options** (e.g., BMS, APR) for those seeking extra power. The **iDrive system** is also highly customizable.

---

#### **Cons**

1. **High Cost of Ownership**

- **Fuel economy** is **poor** for a luxury sedan (combined **16 20 MPG** for most models, worse in SUV variants).

- **Maintenance and repairs** are expensive, especially for **timing chain, suspension, and electrical components**.

- **Insurance premiums** are high due to the vehicle s value and performance capabilities.

2. **Potential Reliability Issues**

- **Timing chain stretch** (if not serviced properly) can lead to **engine misfires or failure**.

- **Electrical gremlins** (e.g., iDrive glitches, sensor failures) are common in BMWs, requiring **dealer visits**.

- **Transmission issues** (especially in **ZF 8-speed automatics**) can arise if not maintained well.

3. **Depreciation and Market Saturation**

- The **2016 2022 models** are **not the latest**, meaning **lower resale value** compared to newer 2023 7 Series.

- The **X3/X5/X6** models face **strong competition** from Mercedes GLE, Audi Q7, and Lexus LS, which may offer better long-term reliability.

4. **Size and Maneuverability**

- The **7 Series sedan is large**, making parking and city driving **less convenient** than smaller luxury sedans (e.g., BMW 5 Series, Audi A8).

- The **X5/X6** are **heavy and slow to accelerate** from a standstill due to their weight.

5. **Software and Infotainment Lag**

- The **iDrive system** can be **slow and unresponsive**, especially in older models.

- **Bluetooth and connectivity issues** (e.g., phone pairing problems) are occasionally reported.

6. **Resale Market Challenges**

- **High demand for newer luxury cars** means used 2016 2022 models may **depreciate faster** than expected.

- **Buyers may prefer newer models** with **improved safety tech (e.g., BMW s latest driver-assistance systems)**.

---

### **Conclusion and Recommendation**

#### **Who Should Buy This BMW?**

**Luxury enthusiasts** who prioritize **driving pleasure, interior quality, and prestige** over long-term cost efficiency.

**Those who maintain their vehicles well** and can afford **higher fuel and maintenance costs**.

**Buyers who want a refined, powerful SUV (X3/X5/X6)** without sacrificing luxury.

**People who value BMW s brand reputation** and are willing to pay for **premium ownership**.

#### **Who Should Avoid It?**

**Budget-conscious buyers** who cannot afford **high insurance, fuel, and repair costs**.

**Those who prioritize **fuel efficiency** over performance (consider a **Lexus LS, Mercedes S-Class, or Audi A8** instead).

**People who dislike **electrical quirks** or prefer **simpler infotainment systems**.

**Buyers who want a **long-term investment** newer models (2023 ) may be a better resale play.

#### **Final Recommendation**

If you **find a well-maintained example** (with **service records, no timing chain issues, and minimal electrical problems**), the **2016 2022 BMW 7 Series (B58) is an excellent choice for luxury and performance**. However, **budget for higher ownership costs** and **prioritize maintenance**.

- **Audi A8 (3.0T V6 or 4.0T V8)** More refined, better fuel economy.

- **Mercedes S-Class (AMG or non-AMG)** More spacious, slightly better tech.

- **Lexus LS 500h** More reliable, better fuel efficiency.

If you **love BMWs and can afford the lifestyle**, the **7 Series (especially the X5/X6) is a fantastic luxury SUV/sedan**. Otherwise, **wait for a newer model or consider alternatives** for better value.

Details:

Good condition. Crankshaft for Bmw b58 engine 2017 -2024.

part #: 764325704 prices

• $270.00-$1150.00

specifications cranshafengin:

• for models: 340, 440, 540, 740
• for makes: Bmw
• for years: 2016-2022
• mpn: 764325704
• part type: Engine Crankshaft
• items included: Bearing, Bolts, Seal
• material: Cast Iron
• vintage part: Yes
• ipn: 1212122
• manufacturer warranty: 1 Month
• finish: Polished
• country of origin: Germany
• item weight: 10 Lb

shipping cranshafengin:

• service: USPS Ground Advantage
• type: Calculated
• cost: $130.57
• class: Standard
• transit: 5-9 Days
• carrier: USPS

seller cranshafengin:

• city: Dania, Florida
• rating: 100.0%
• # reviews: 96

returns cranshafengin:

• policy: No Returns

offer cranshafengin:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: May 11, 2026
• best offers: True
• availability: In Stock

payments cranshafengin:

• other
• wallet: Google-pay
• credit card: Diners-club
• money order

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: Used

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