BMW Water Pump Engine

( Manufacturer Part Number: 11518482744 ), ( Part Type: Pump Engine )

Review BMW Auxiliary Water Pump Engine 1151 8482744 Oem fits 750 740 540 2017–2020

The **BMW N57/N63 750i/740i/540i Water Pump (Part Number: 11518482744)** is a precision-engineered component designed to maintain optimal cooling efficiency and engine performance in BMW s high-performance V8 models from the 2017 through 2020 model years. This water pump is a critical part of the engine s cooling system, circulating coolant through the radiator, engine block, and cylinder heads to prevent overheating and ensure consistent power delivery. Crafted from high-quality materials, including a durable aluminum housing and a sealed mechanical seal, this water pump is engineered to withstand the demanding thermal and mechanical stresses of BMW s twin-turbocharged V8 engines, which are found in the **7 Series (750i/740i), 5 Series (540i), and X5/X6 (550i/540i)** variants.

The **11518482744** water pump features an integrated **thermostat housing**, which regulates coolant flow based on engine temperature, ensuring efficient warming during cold starts and preventing excessive heat buildup under high-load conditions. Its **impeller-driven design** provides consistent fluid circulation, reducing the risk of air pockets that could lead to overheating or cooling system inefficiencies. Additionally, this water pump is compatible with BMW s **EfficientDynamics cooling system**, which optimizes fuel efficiency and performance by dynamically adjusting coolant flow based on driving conditions.

For reliability and longevity, this water pump is equipped with a **high-performance mechanical seal**, resistant to coolant degradation and temperature fluctuations, which are common in turbocharged applications. The **OEM-grade gasket** ensures a secure seal between the pump and engine block, preventing leaks that could compromise cooling performance. Whether installed in a **2017 750i with a 4.4L twin-turbo V8, a 2019 540i with the same engine architecture, or a 2020 X5 550i**, this water pump delivers the durability and precision expected from BMW s high-performance lineup.

Replacing a failing water pump is a critical maintenance task, as a seized or leaking pump can lead to catastrophic engine damage due to overheating. This **direct-fit OEM replacement** eliminates the need for aftermarket compromises, ensuring seamless integration with BMW s cooling system components, including the **thermostat, radiator, and coolant hoses**. With its **robust construction and BMW-certified engineering**, this water pump is the ideal choice for enthusiasts and professionals seeking to restore or enhance the performance and reliability of their **N57/N63-powered BMW**. Proper installation, using the correct torque specifications and coolant, will maximize its service life, ensuring your vehicle remains in peak condition for thousands of miles.

### **Pros and Cons of Buying a BMW N55/N63 (2017 2020) with the Water Pump Engine Code (1151 8482744)**

This water pump engine code (1151 8482744) applies to **BMW B58 (N55) and B57 (N63) engines** in **2017 2020 models**, including the **7 Series (740i/750i), 5 Series (540i/550i), X5 (xDrive50i/xDrive60i), and others**. Below is a detailed breakdown of the advantages and disadvantages of purchasing one of these engines, followed by a conclusion and recommendation.

---

### **Pros**

1. **High Performance and Power**

- The **N55 (B58) and N63 (B57)** are BMW s most powerful inline-6 engines of their generation, producing **300 400 horsepower** (depending on tuning and model).

- The **N63 twin-turbo setup** delivers exceptional low-end torque, making it ideal for towing and spirited driving.

- **Direct injection and high compression ratios** (10.5:1) contribute to strong performance, especially when tuned.

2. **Turbocharged Efficiency (Compared to Older V8s)**

- Unlike the previous **N63 V8 (pre-2017)**, the **N63 B57 is a 3.0L twin-turbo inline-6**, which is more efficient in terms of fuel economy and emissions compliance.

- The **N55 (B58) is a naturally aspirated twin-turbo 3.0L**, offering a balance between power and efficiency (though less efficient than the N63 in some cases).

3. **Modern BMW Technology**

- **Double-VANOS variable valve timing** improves efficiency and power delivery.

- **High-pressure direct injection** enhances performance and fuel economy.

- **Integrated starter-generator (ISG)** in some models improves fuel efficiency in hybrid systems (though not all N55/N63 cars have this).

- **Advanced turbocharger wastegate control** reduces lag compared to older BMW turbos.

4. **Aftermarket Support and Tuning Potential**

- These engines are **highly tunable**, with options ranging from **stage 1 (200 300 HP)** to **stage 3 (500 HP)**.

- **Common Rail (CR) tuning** (for diesel N63) allows for massive power gains with minimal drivability loss.

- **Wide availability of parts** (turbochargers, injectors, fuel pumps, etc.) makes maintenance and upgrades easier than on older BMW engines.

5. **Durability (When Properly Maintained)**

- The **N63 B57** is known for **lasting 200,000 miles** if **oil changes are done on time (every 5,000 7,500 miles)** and **coolant is flushed regularly**.

- The **N55 B58** is also robust but **more prone to carbon buildup** due to direct injection, requiring periodic **carbon cleaning**.

- **Turbochargers are high-quality** (Garrett GTX or BorgWarner) and last longer than some competitors.

6. **Luxury and Comfort**

- BMW s **7 Series, 5 Series, and X5** platforms offer **premium interiors, advanced driver aids, and refined ride quality**.

- **Quiet cabin** (especially in newer models) and **high-end materials** make ownership enjoyable.

7. **Resale Value (Compared to Older BMWs)**

- While not as high as a **BMW M5 or M7**, these engines still hold **better resale value than older V8 or V10 BMWs** due to their efficiency and modern tech.

---

### **Cons**

1. **Carbon Buildup (N55 B58)**

- **Direct injection causes carbon deposits** on intake valves, leading to **rough idle, misfires, and loss of power** over time.

- **Solution:** Requires **carbon cleaning every 60,000 100,000 miles** (expensive if done professionally).

- **Workaround:** Running **leaner (higher octane fuel) or using fuel additives** can help, but cleaning is often necessary.

2. **Oil Consumption (N63 B57)**

- The **N63 is notorious for burning oil**, especially in **high-mileage examples**.

- **Symptoms:** Blue smoke from exhaust, low oil levels despite regular top-ups.

- **Solution:** **Oil catch can installation** helps, but **some engines still burn oil excessively**.

- **Worse in:** **Diesel N63 (2017 2019)** petrol N63 (2020 ) has **reduced oil consumption** due to minor engine tweaks.

3. **Coolant System Issues**

- **Water pump failures** (hence the **1151 8482744 code**) are a known issue, especially in **2017 2019 models**.

- **Symptoms:** Overheating, coolant leaks, **ECU error codes (P0171, P0174, P0128)**.

- **Solution:** **Replace the water pump and thermostat housing** (a **$500 $1,200 repair**).

- **Prevention:** **Regular coolant flushes (every 60,000 miles)** reduce risk.

4. **Turbocharger and Wastegate Failures**

- **N63 turbos (especially early 2017 2018) have failed due to wastegate issues**.

- **Symptoms:** **Whining noise, loss of boost, excessive lag**.

- **Solution:** **Replace turbos (Garrett GTX) or upgrade to aftermarket turbos (BorgWarner, Garrett GTX 2876)**.

- **Cost:** **$1,500 $3,000 per turbo** (often both sides fail).

5. **High Maintenance Costs**

- **BMW dealership labor rates** are **expensive** (often **$120 $150/hour**).

- **Aftermarket parts (turbochargers, injectors, fuel pumps) are costly** compared to mass-market brands.

- **Specialized knowledge required** many mechanics are unfamiliar with these engines.

6. **Fuel Economy Trade-offs**

- While **better than a V8**, the **N55/N63 still drinks fuel** ( 12 16 MPG in a 7 Series, 15 18 MPG in a 5 Series).

- **Diesel N63 (2017 2019) is more efficient ( 20 25 MPG)**, but **diesel parts are harder to find** post-2020.

7. **Electrical and Software Quirks**

- **ISG (integrated starter-generator) issues** in some models cause **starting problems or false error codes**.

- **ECU glitches** (especially in early 2017 models) can lead to **random misfires or drivability issues**.

- **Software updates** are sometimes needed to fix minor bugs.

8. **Depreciation and Market Saturation**

- **High-performance BMWs depreciate quickly**, especially in **used markets**.

- **Many tuners and modified examples** flood the market, **lowering value of stock engines**.

- **Not as "collectible" as an M5 or M7** better for performance than investment.

9. **Noise and Vibration (N63)**

- The **N63 is louder than the N55**, with **more turbo whine and engine noise**.

- **Vibration can be noticeable at certain RPMs** (especially in manual models).

- **Solution:** **Sound deadening and suspension tuning** can help.

10. **Recall and Warranty Issues**

- **Some 2017 2018 N63 models had recalls** for **turbo wastegate failures and oil consumption**.

- **If buying used, check for unresolved recalls** (BMW may still cover some costs).

- **Extended warranties are expensive** ( $3,000 $5,000 for full coverage).

---

### **Conclusion**

The **BMW N55 (B58) and N63 (B57) engines (2017 2020)** are **powerful, modern, and capable of handling heavy modifications**, but they come with **significant maintenance challenges**, particularly:

- **Carbon buildup (N55)**

- **Oil consumption (N63, especially diesel)**

- **Water pump and turbo failures**

- **High repair costs**

- **Enthusiasts who want a high-performance BMW and are willing to invest in maintenance.**

- **Those who

Details:

Part number must match. Please compare this item with yours before buying also please do your research to make sure will fit vehicle. American Express.

part #: 11518482744 prices

• $70.76-$151.64

specifications ocoosys:

• for models: 750, 740, 540
• for makes: Bmw
• for years: 2017-2020
• mpn: 11518482744
• part type: Pump Engine

shipping ocoosys:

• type: Fixed
• transit: 4-10 Days
• service: UPS Ground
• cost: $19.00
• carrier: UPS
• class: Standard

general ocoosys:

• Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
• condition: Used

returns ocoosys:

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

payments ocoosys:

• other
• credit card: Discover
• cash
• wallet: Apple-pay

seller ocoosys:

• rating: 100.0%
• # reviews: 8765
• city: San Fernando, California

offer ocoosys:

• quantity: 1
• best offers: True
• started: February 28, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0

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