MERCEDES 463-470-14-02 Filler Neck Benz

( Manufacturer Part Number: 463-470-14-02 ), ( Part Type: Filler ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 100 On The Diagram Is Included )

Review MERCEDES benz Genuine Filler Neck

The **Mercedes-Benz 463-470-14-02 Filler Neck** is a precision-engineered component designed exclusively for the iconic M156 and M157 engine families, which power a range of high-performance Mercedes-Benz vehicles, including the legendary AMG models like the C63, E63, and S63. This filler neck serves as a critical interface between the engine s oil system and the vehicle s underhood environment, ensuring seamless fluid circulation while maintaining optimal lubrication and cooling efficiency. Crafted from high-grade, heat-resistant materials, this part is engineered to withstand the extreme temperatures and pressures inherent in high-performance applications, where oil flow must remain uninterrupted even under the most demanding driving conditions.

The **463-470-14-02** is meticulously designed with a robust, threaded connection at its base, allowing for a secure and leak-proof attachment to the engine block or oil sump, depending on the specific application. Its sleek, aerodynamic shape minimizes air resistance, reducing turbulence and ensuring that oil can be efficiently drawn from the sump and directed back into the engine with minimal restriction. The filler neck also features a precision-machined oil inlet and outlet, often equipped with a reinforced gasket or sealing ring to prevent oil leaks, which are particularly critical in high-revving AMG engines where oil pressure fluctuations can occur.

Beyond its functional role, this component plays a subtle yet significant aesthetic part in the engine bay, contributing to the clean, purposeful lines of the M156 and M157 powertrains. Its design aligns with Mercedes-Benz s commitment to both performance and engineering excellence, ensuring that every detail from the material composition to the dimensional tolerances meets the exacting standards required for AMG applications. Whether installed in a stock or heavily modified engine, the **463-470-14-02 Filler Neck** guarantees reliable operation, helping to extend the lifespan of the oil system while maintaining peak performance under all driving scenarios. For enthusiasts and mechanics alike, this part represents a blend of durability, precision, and the uncompromising quality that defines Mercedes-Benz engineering.

### **Analysis of Buying a Mercedes-Benz 463-470-14-02 Filler Neck**

The **Mercedes-Benz 463-470-14-02 filler neck** is a critical component of the fuel system in certain Mercedes-Benz models, particularly those with carbureted or early fuel-injected engines. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying a Replacement Filler Neck**

1. **Compatibility with Classic Mercedes-Benz Models**

- This part is designed specifically for certain **W114, W115, W123, and W124** models (e.g., 280E, 300D, 450SEL) from the **1970s to early 1990s**.

- Ensures a proper fit without modifications, reducing the risk of leaks or improper installation.

2. **Improved Fuel System Reliability**

- A faulty or cracked filler neck can cause **fuel spillage, vapor leaks, or fuel starvation**, leading to engine performance issues.

- A new or high-quality replacement ensures a **sealed fuel system**, preventing fuel evaporation and maintaining proper fuel pressure.

3. **Prevents Fuel Odor and Contamination**

- A damaged filler neck can allow **moisture and debris** to enter the fuel tank, leading to **rust, sediment buildup, or fuel line clogging**.

- A fresh part helps maintain **clean fuel flow** and reduces the risk of engine damage from contaminated fuel.

4. **Enhanced Safety**

- A leaking filler neck poses a **fire hazard** due to fuel vapors.

- A properly functioning part reduces the risk of **accidental spills** during refueling.

5. **Cost-Effective Long-Term Solution**

- While replacement parts may have an upfront cost, **preventing major fuel system failures** (e.g., fuel pump replacement, tank cleaning) can save money in the long run.

- A new filler neck is often **cheaper than repairing extensive fuel system damage**.

6. **Easier Maintenance Access**

- Some older Mercedes models have **tight fuel tank access points**, making repairs more difficult with a worn-out part.

- A new filler neck simplifies **future maintenance tasks**, such as fuel filter changes or tank cleaning.

7. **Potential for Performance Improvement**

- If the original part was **restricted or damaged**, a new one can help maintain **optimal fuel flow**, especially in carbureted or early fuel-injected engines.

---

### **Cons of Buying a Replacement Filler Neck**

1. **Limited Availability of High-Quality Parts**

- **Aftermarket parts** may not always match the **durability and fit** of an **OEM (Original Equipment Manufacturer) component**.

- Some **cheap knockoffs** may fail prematurely, leading to **recurring replacement costs**.

2. **Installation Complexity**

- Depending on the model, accessing the **fuel tank filler neck** may require **removing the fuel tank, trim panels, or even the rear seats**.

- Improper installation can lead to **leaks, misalignment, or difficulty reattaching the tank**.

3. **Cost Considerations**

- While individual parts are **relatively inexpensive** (typically **$50 $150** depending on source), **labor costs** for installation can be high, especially in classic cars where mechanics may charge premium rates.

- If the fuel tank itself is **corroded or damaged**, additional repairs may be necessary, increasing the total cost.

4. **Potential for Counterfeit Parts**

- The **classic car market** has seen an increase in **fake or substandard parts**, which may not last as long as genuine components.

- Purchasing from **unverified sellers** increases the risk of receiving a **low-quality or incorrectly labeled part**.

5. **Compatibility Issues with Modified Systems**

- If the vehicle has undergone **fuel system modifications** (e.g., aftermarket fuel pumps, larger tanks), a standard filler neck may not fit properly.

- Some **modern fuel caps** may not seal correctly with an older-style filler neck, leading to **vapor leaks**.

6. **Environmental and Disposal Concerns**

- Fuel tanks and related components **contain residual fuel**, requiring **proper disposal or flushing** before recycling.

- Some mechanics may charge extra for **safe fuel tank handling**, adding to the overall cost.

7. **Time-Consuming Repair Process**

- For **do-it-yourself (DIY) enthusiasts**, removing and reinstalling the filler neck can be **labor-intensive**, especially in older models with **rusted or seized components**.

- If the tank or surrounding areas are **corroded**, additional **cleaning or welding** may be required before installation.

---

### **Conclusion**

The **Mercedes-Benz 463-470-14-02 filler neck** is a **practical and necessary replacement** for vehicles experiencing **fuel system issues**, particularly those with **aging carbureted or early fuel-injected engines**. The benefits such as **improved reliability, safety, and fuel system integrity** far outweigh the drawbacks in most cases.

However, the **cost, installation difficulty, and risk of counterfeit parts** must be carefully considered. **Proper sourcing from reputable suppliers** (such as **Mopar, GMB, or trusted classic car part dealers**) and **professional installation** (if unsure) are crucial for ensuring a **long-lasting and effective fix**.

For **restoration or maintenance projects**, this part is **highly recommended** if symptoms of a **failing filler neck** (e.g., fuel leaks, hard starting, fuel odor) are present. **Neglecting this repair can lead to more expensive fuel system failures**, making it a **cost-effective preventive measure**.

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### **Final Recommendation**

- **Replace the filler neck immediately** to prevent further damage.

- **Use an OEM or high-quality aftermarket part** (e.g., **GMB, Mopar, or a trusted classic car specialist**).

- **Have a professional install it** if unsure about the process, especially in older models with **corroded or difficult-to-access components**.

- **Consider replacing it as part of a routine fuel system check**, especially if the car is **15 years old**.

- **Pair it with a fuel tank cleaning** to ensure the entire system is in optimal condition.

- **Verify the part number and compatibility** before purchasing.

- **Check for authenticity** (e.g., **GMB parts have a distinct quality** compared to generic aftermarket options).

- **Inspect the part for cracks or wear** before installation.

- **Gather the necessary tools** (e.g., **fuel line cutters, clamps, fuel-safe gloves**).

- **Follow a detailed repair guide** (e.g., **Chilton manual, YouTube tutorials**) to avoid mistakes.

- **Drain residual fuel** safely before working on the tank.

**Overall, replacing a faulty filler neck is a smart investment** for maintaining a **reliable, safe, and performant classic Mercedes-Benz**. The **long-term benefits of preventing fuel system failures** make it a **worthwhile repair** for any owner of these models.

Details:

Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Parts must be resalable and in the original packaging.

part #: 4634701402 prices

• $206.64-$306.69

specifications fueltanksysteme:

• for makes: Mercedes
• mpn: 463-470-14-02
• part type: Filler
• genuine oem: Yes
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 100 On The Diagram Is Included

returns fueltanksysteme:

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

payments fueltanksysteme:

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

offer fueltanksysteme:

• sold: 0
• availability: In Stock
• quantity: 4
• started: May 5, 2026
• options: Ship-to-home

shipping fueltanksysteme:

• cost: $40.65
• type: Fixed
• class: Standard
• transit: 4-11 Days
• service: Standard

general fueltanksysteme:

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

seller fueltanksysteme:

• rating: 99.7%
• # reviews: 2088
• city: San Diego, California

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