BMW 11121029764 Engine Cylinder Head N51B30 3.0L 94K

( Manufacturer Part Number: 11121029764 ), ( Type: Cylinder Head ), ( Material: Aluminum ), ( Vintage Part: No ), ( Country Of Origin: Germany )

Review BMW N51 3.0l Engine Cylinder Head Oem 94k Miles fits E90 328I 2007–2013

The **BMW 11121029764 cylinder head** is a precision-engineered component designed specifically for the **N51B30 3.0-liter inline-six engine** found in the **E90 328i (2007 2013)** and other models within the N51 engine family. This high-performance cylinder head is a critical part of the engine s combustion system, responsible for housing the intake and exhaust valves, spark plugs, and the camshaft mechanism, all of which work in unison to deliver the power and efficiency that BMW s 3.0L inline-six is renowned for. Crafted from **high-grade aluminum alloy**, the head is engineered to withstand the extreme heat and pressure generated during combustion while maintaining optimal thermal conductivity to prevent overheating. The **N51B30 engine** features a **double overhead camshaft (DOHC) design**, meaning each cylinder bank has its own intake and exhaust camshaft, allowing for precise valve timing and improved airflow key factors in achieving the engine s smooth, responsive performance. The **11121029764 part number** corresponds to the **original equipment (OEM) cylinder head**, which includes **four valves per cylinder (20 valves total)**, a **piston-driven variable valve timing (VANOS) system** for the intake camshaft, and **hydraulic lifters** that eliminate the need for manual adjustment, ensuring consistent valve clearance and quiet operation. This head is compatible with **N51B30 engines** across various BMW models, including the **E90 328i, E92 328i, E93 328i Touring, and E82 Z3**, making it a versatile and widely sought-after component for both restoration and performance upgrades. When installed correctly, this cylinder head contributes to the engine s **efficient fuel combustion, reduced emissions, and reliable long-term durability**, making it an essential replacement for engines experiencing wear, leaks, or performance degradation. Whether used in a **full engine rebuild, a valve cover replacement, or a cylinder head overhaul**, the **11121029764** ensures that the N51 s legendary inline-six character remains intact, delivering the **torque-rich, linear power delivery** that BMW enthusiasts have come to expect.

### **Pros and Cons of Buying a BMW E90 328i (N51B30 3.0L Engine, 2007 2013) with a Cylinder Head (Part Number: 11121029764)**

#### **Pros**

1. **Reliable Engine Core** The N51B30 is a robust inline-6 engine known for durability, especially when properly maintained. With a fresh cylinder head, the engine s performance and longevity can be significantly improved.

2. **Performance Potential** The 3.0L N51 is a high-revving engine that responds well to modifications, including forced induction (turbo/supercharger) or camshaft upgrades. A rebuilt cylinder head ensures better airflow and efficiency.

3. **Aftermarket Support** The N51 has a strong aftermarket presence, with readily available parts for upgrades, tuning, and maintenance. This makes long-term ownership more manageable.

4. **Classic E90 Appeal** The E90 328i is a highly sought-after model, especially in its later years (2009 2013), due to its balance of performance, comfort, and styling. A well-maintained example with a rebuilt head can be a great investment.

5. **Potential for High Value** If restored or modified correctly, an E90 328i can appreciate in value, particularly in the tuning and classic BMW communities.

6. **Lower Running Costs (Compared to Turbo Models)** Unlike the N54 (turbocharged), the N51 is naturally aspirated, meaning fewer issues with turbo lag, oil consumption, or carbon buildup. This makes it more reliable for daily driving.

7. **Customization Flexibility** The N51 s simplicity allows for easier modifications, such as intake/exhaust upgrades, suspension tuning, and interior enhancements without the complexity of a turbocharged engine.

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#### **Cons**

1. **Age and Wear** Even with a rebuilt cylinder head, the rest of the engine and drivetrain may show signs of wear after 15 17 years. Timing chain stretch, water pump failure, and transmission issues are common in older BMWs.

2. **Maintenance Costs** BMWs, especially E90s, require frequent and often expensive maintenance (valve cover gaskets, oil changes, suspension components, etc.). A rebuilt head helps, but other systems may still need attention.

3. **Rust and Structural Issues** Many E90s from this era suffer from rust, particularly in the subframe, wheel arches, and undercarriage. A thorough inspection is crucial before purchase.

4. **Depreciation** While some E90s hold value, others depreciate quickly if not well-maintained or modified. A stock example may not retain value as well as a restored or tuned version.

5. **Fuel Economy Limitations** The N51B30 is thirsty for a naturally aspirated engine, especially with modifications. Expect around **12 15 MPG** in daily driving, which can be costly over time.

6. **Resale Market Competition** The E90 platform is still popular, meaning competition for good examples can drive up prices. A well-documented, low-mileage car with a rebuilt head will be more desirable.

7. **Potential for Hidden Problems** Even with a fresh cylinder head, issues like a failing alternator, water pump, or transmission can arise. A pre-purchase inspection (PPI) is essential to avoid costly surprises.

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### **Ending Conclusion**

Buying an **E90 328i (N51B30) with a rebuilt cylinder head (11121029764)** can be a **great investment** if you prioritize **performance, reliability, and long-term enjoyment**. The N51 is a **strong, naturally aspirated engine** that benefits from modifications and has a **dedicated aftermarket**. However, it comes with the **typical challenges of an aging BMW**, including **maintenance costs, rust, and potential drivetrain issues**.

If you plan to **drive it daily, modify it, or keep it for the long term**, a well-sourced example with a fresh head can be an excellent choice. If you re looking for a **project car or a budget-friendly BMW**, weigh the costs of restoration against the potential rewards.

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### **Recommendation**

- **Buy a low-mileage (under 80,000 km) E90 328i (2009 2013) with a rebuilt cylinder head.**

- **Ensure the car has a full service history, no major rust, and a pre-purchase inspection (PPI).**

- **Consider a mild tune (e.g., MHD or BMS) for better throttle response.**

- **Budget for ongoing maintenance (timing chain, water pump, suspension).**

- **Target a higher-mileage example (100,000 km) but with a fresh head and no major rust.**

- **Be prepared for repairs (transmission, electrical, interior wear).**

- **Focus on cosmetic restoration (paint, interior) and engine upgrades first.**

- **Consider an E90 330i (N54) instead**, but be aware of its **higher maintenance needs** (carbon buildup, oil consumption, turbo reliability).

**Final Verdict:** The **E90 328i with a rebuilt N51B30 head is a strong choice for enthusiasts** who want **a balance of power, reliability, and mod potential**. Just **expect to invest in maintenance** and **inspect thoroughly** before buying. If you re willing to put in the work, it can be a **fantastic long-term BMW**.

Details:

Came front a 2011 BMW 328I drive SULEV N51 w/ 94k miles, Intake cam and other parts as pictured still installed, Engine had the intake gear bolts sheared off - therefore didn't move while engine rotated, The valves might have slightly hit head due to this although its not very obvious if so Recommend full check / rebuild naturally, Verify part number here matches what you are replacing that it fits your vehicle.

part #: 11121029764 prices

• $180.00-$1232.23

specifications cylinderheapar:

• for models: E90, 328i
• for makes: Bmw
• for years: 2007-2013
• mpn: 11121029764
• type: Cylinder Head
• material: Aluminum
• vintage part: No
• country of origin: Germany

general cylinderheapar:

• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: Used

seller cylinderheapar:

• # reviews: 2508
• city: Kingman, Arizona
• rating: 100.0%

payments cylinderheapar:

• wallet: Paypal
• other
• credit card: Discover

offer cylinderheapar:

• availability: In Stock
• best offers: True
• sold: 0
• started: February 23, 2026
• quantity: 1
• options: Ship-to-home

shipping cylinderheapar:

• class: Standard, Economy, Expedited
• carrier: USPS, UPS, FedEx
• transit: 4-11 Days
• service: USPS Ground Advantage, UPS Ground, FedEx Ground Economy, UPS 2nd Day Air
• cost: $151.74
• type: Calculated

returns cylinderheapar:

• policy: No Returns

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