BMW 16-11-7-704-799 Fuel Tank

( Manufacturer Part Number: 16-11-7-704-799 ), ( Type: Parts )

Review BMW Fuel Tank New Oem

The **BMW 16-11-7-704-799 Fuel Tank** is a high-quality, direct-fit replacement component designed specifically for select BMW models, ensuring optimal performance and compatibility with the vehicle s original fuel system. Manufactured to meet stringent automotive industry standards, this fuel tank is crafted from durable, corrosion-resistant materials that guarantee longevity and resistance to environmental degradation, including exposure to moisture, chemicals, and temperature fluctuations. Its precise engineering adheres to BMW s original specifications, including the correct capacity, mounting points, and fuel line connections, ensuring seamless integration with the engine bay and fuel delivery system without the need for modifications or additional adapters. The tank s robust construction minimizes the risk of leaks, cracks, or deformation over time, which is particularly critical for maintaining fuel efficiency and preventing potential fire hazards. Whether installed in a classic BMW or a modern variant, this fuel tank is engineered to uphold the vehicle s performance standards while offering a reliable, long-term solution for fuel storage. Its compatibility extends to certain models within the 7 Series, 5 Series, and other high-end BMW applications, making it a versatile choice for enthusiasts and mechanics seeking authenticity and dependability. By choosing this fuel tank, owners can restore or enhance their vehicle s original functionality while benefiting from the peace of mind that comes with a premium, aftermarket part designed to exceed OEM expectations.

### **Pros and Cons of Buying a BMW 16-11-7-704-799 Fuel Tank**

The **BMW 16-11-7-704-799** fuel tank is a common replacement part for older BMW models, particularly the **E30, E36, and E38 series** (3 Series, 5 Series, and 7 Series from the late 1980s to early 1990s). Below is a detailed analysis of its advantages and disadvantages.

---

### **Pros**

1. **Compatibility with Classic BMW Models**

- This fuel tank is designed for **E30 3 Series (1982-1994), E36 3 Series (1990-1999), and E38 5 Series (1990-1996)**.

- It fits **M3, M5, and other high-performance variants** of these models, making it a reliable choice for restorations and modifications.

- Many aftermarket and OEM suppliers stock this part, ensuring availability.

2. **Durability and Longevity**

- Made from **high-quality steel or reinforced plastic**, it is designed to withstand standard fuel pressures without leaking.

- Unlike some modern fuel tanks, it is less prone to corrosion if properly maintained, especially in older BMWs that may have had rust issues in the past.

- The **welded seams** (if steel) provide structural integrity, reducing the risk of fuel leaks over time.

3. **Cost-Effective Replacement**

- Compared to **OEM BMW fuel tanks**, this aftermarket part is often **significantly cheaper**, making it a budget-friendly option for restorers.

- Pricing varies, but it typically costs **$150 $400**, depending on the seller and material (plastic vs. steel).

- Replacing a damaged or leaking original tank can be **far more expensive** if sourcing an OEM part or dealing with rusted-out sections.

4. **Ease of Installation**

- Designed to **drop-in replace** the original tank in most cases, requiring minimal modifications.

- Comes with **mounting brackets and necessary fittings**, reducing the need for custom fabrication.

- Many mechanics and DIY enthusiasts report **straightforward installation** with basic tools.

5. **Fuel Efficiency and Performance Benefits**

- A **properly sealed fuel tank** ensures no fuel evaporation, maintaining **engine performance and fuel economy**.

- Reduces the risk of **vapor lock** in high-performance applications, which can cause stalling or hesitation.

- Some owners report **better cold-start reliability** when switching to a new, leak-free tank.

6. **Aftermarket Support and Customization**

- Available in **different sizes and configurations**, including **extended-capacity versions** for modified engines.

- Some suppliers offer **custom paint or anodizing** to match the vehicle s aesthetic.

- Easily compatible with **aftermarket fuel pumps, senders, and fuel lines**.

7. **Prevents Future Issues**

- Replacing a **leaking or corroded tank** before it fails prevents **fuel spills, fire hazards, and engine damage** from fuel contamination.

- Extends the **lifespan of the fuel system**, including the **fuel pump and lines**.

---

### **Cons**

1. **Potential Quality Variations**

- **Not all aftermarket tanks are equal** some cheaper versions may have **poor welding, thin material, or weak seals**, leading to leaks.

- **Counterfeit or low-grade parts** can be sold under the same part number, risking premature failure.

- **Plastic tanks** (common in some aftermarket options) may degrade over time if exposed to **UV light or extreme temperatures**.

2. **Compatibility Issues with Modified Vehicles**

- If the vehicle has **aftermarket fuel injection, turbocharging, or large fuel pumps**, the **original tank capacity may be insufficient**.

- Some **extended-capacity tanks** are needed, which may not be available for this exact part number.

- **Fuel line routing** may require adjustments if the new tank sits differently than the original.

3. **Installation Challenges in Some Cases**

- **Rust or corrosion** in the **mounting brackets or frame rails** may require additional welding or reinforcement.

- **Electrical connections** (fuel sender unit) must be **properly tested** to avoid false fuel readings.

- **Vapor recovery systems** (if applicable) may need modification if the new tank lacks the proper fittings.

4. **Potential for Improper Sealing**

- If **gaskets or clamps are not replaced**, fuel leaks can occur at the **flanges or connections**.

- **Improper welding** (if using a steel tank) can lead to **weak spots** that crack under pressure.

- Some owners report **squeaking or rattling** if the tank is not securely mounted.

5. **Limited Longevity Compared to OEM**

- While durable, **aftermarket tanks may not last as long as OEM parts** in extreme conditions (e.g., high-mileage daily drivers).

- **Plastic tanks** are more prone to **cracking from impact** than steel tanks.

- **Corrosion can still occur** if the tank is not properly grounded or if fuel additives are not used.

6. **Mixed Reviews on Supplier Reliability**

- Some buyers report **receiving damaged or incorrect parts** from certain sellers.

- **No-name brands** may lack proper certifications, leading to **poor fitment or early failure**.

- **Shipping damage** is a risk if the tank is not properly packaged.

7. **Potential for Overpaying for "Premium" Parts**

- Some sellers market **high-end aftermarket tanks** at **OEM-like prices**, which may not justify the cost.

- **Branded BMW parts** (e.g., from **BMW M Parts or Genuine BMW**) are more expensive but may offer **better quality control**.

---

### **Conclusion**

The **BMW 16-11-7-704-799 fuel tank** is a **solid aftermarket replacement** for older BMW models, offering **cost savings, durability, and ease of installation** in most cases. It is particularly well-suited for **restorations, modifications, and vehicles with original tanks showing signs of wear**.

However, **quality varies by supplier**, and **poor installation or low-grade materials** can lead to **leaks, failures, or compatibility issues**. Buyers should:

- **Purchase from reputable suppliers** (e.g., **BMW M Parts, ECS, or trusted aftermarket brands**).

- **Inspect the tank for defects** before installation (check welds, seals, and material thickness).

- **Use proper gaskets and clamps** to prevent leaks.

- **Consider a steel tank** if the vehicle sees **high mileage or aggressive driving**.

- **Test the fuel system** after installation to ensure no leaks or electrical issues.

For **most E30, E36, and E38 owners**, this tank is a **worthwhile upgrade** especially if the original is **rusted, leaking, or difficult to source**. However, those seeking **long-term reliability** may prefer **OEM or high-end aftermarket alternatives** if budget allows.

---

### **Final Recommendation**

You need a **budget-friendly, widely available replacement** for an older BMW.

Your vehicle is an **E30, E36, or E38** with a **damaged or failing original tank**.

You plan to **restore or modify** the car and want a **drop-in solution**.

You purchase from a **trusted supplier** and **inspect the part before installation**.

You require **extended fuel capacity** for a heavily modified engine.

You suspect **counterfeit or low-quality parts** from an unknown seller.

Your vehicle has **unique fuel system modifications** that may conflict with the standard tank.

You prioritize **long-term warranty coverage**, as aftermarket parts typically lack this.

- **Compare prices** from multiple sellers (eBay, ECS, local BMW parts shops).

- **Check reviews** for the specific supplier s track record.

- **Consider a steel tank** if your climate is **humid or corrosive**.

- **Have a mechanic inspect the installation** to ensure proper sealing.

For **most DIY enthusiasts and restorers**, this tank provides an **excellent balance of cost and performance**, making it a **strong recommendation** for the right application.

Details:

Buyer should verify this is the exact part needed before purchasing.

part #: 16117704799 price

• $1009.00

specifications fueltanksysteme:

• for makes: Bmw
• mpn: 16-11-7-704-799
• type: Parts

general fueltanksysteme:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

payments fueltanksysteme:

• credit card: Discover
• other
• wallet: Paypal

returns fueltanksysteme:

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

seller fueltanksysteme:

• # reviews: 15500
• city: Columbus, Wisconsin
• rating: 99.8%

shipping fueltanksysteme:

• transit: 2-4 Days
• cost: $0.00
• class: Standard
• type: Fixed
• service: Standard

offer fueltanksysteme:

• sold: 0
• options: Ship-to-home
• best offers: True
• started: April 14, 2026
• availability: In Stock
• quantity: 2

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