Best Replacement Fuel Pumps for Mercedes-Benz W163 Models

Alright, fellow W163 owners! If you’ve been driving your Mercedes-Benz ML320, ML350, ML430, ML500, or ML55 AMG for a while, you know these SUVs are built like tanks. But even the most robust machines have their Achilles’ heel, and for our beloved W163, the fuel pump can often be a common culprit. I’ve been there myself, experiencing that familiar hesitation, rough idling, or even a complete no-start situation – all classic signs of a failing fuel pump. It’s frustrating, and finding the right replacement fuel pump for your Mercedes-Benz W163 model can feel like a maze with so many options out there. That’s why I put together this guide. I’ve dug into some of the most popular replacement options, looking at their features, build quality, and what real users are saying. My goal here is to help you cut through the noise, understand what to look for, and confidently choose a reliable fuel pump that’ll get your W163 running smoothly again without breaking the bank. We’ll dive deep into specific products, compare their pros and cons, and arm you with the knowledge to make the best decision for your ML-Class.

IMAGE	PRODUCT NAME	AMAZON LINK
	VANBOL Fuel Pump Assembly Compatible with Mercedes-Benz…	View on Amazon
	A-Premium Electric Fuel Pump Module Assembly with Sending…	View on Amazon
	YHTAUTO Electric Fuel Pump with Sending Unit Compatible…	View on Amazon
	Fuel Pump Replacement for Compatible with MERCEDES-BENZ…	View on Amazon
	SCITOO Fuel Pump Electrical Assembly High Performance for…	View on Amazon
	Electric Gas Fuel Pump assembly 2114704094 Replacement For…	View on Amazon
	Bomunik Fuel Pump For Mercedes Benz 1997-2016 W210 W463…	View on Amazon

Product Reviews: Finding the Right Fuel Pump for Your W163

Here’s a detailed look at some of the fuel pump options you might encounter. We’ll be paying close attention to which ones truly fit the Mercedes-Benz W163 models.

VANBOL Fuel Pump Assembly Compatible with Mercedes-Benz W163 Series

When your Mercedes-Benz W163 starts showing signs of fuel delivery issues, the VANBOL Fuel Pump Assembly aims to be a straightforward and effective solution. This assembly is designed as a direct replacement, meaning it should integrate seamlessly into your ML-Class without needing any complex modifications. It’s built with the intention of restoring your vehicle’s performance, potentially bringing back that smooth acceleration and reducing any annoying hesitations or vibrations you might be experiencing. The manufacturer highlights their rigorous testing process, which is always a good sign when it comes to critical components like fuel pumps. Plus, with a 1-year warranty and a focus on customer satisfaction, it offers a bit of peace of mind.

Key features:
– Direct fit for Mercedes-Benz W163 Series (1998-2005 ML320, ML350, ML430, ML500, ML55 AMG)
– Includes sending unit, seal, O-ring, and gasket
– Aims to enhance performance by improving acceleration and reducing engine issues
– Undergoes thorough testing for reliable operation
– Designed for quick and hassle-free installation
– Reference OEM Numbers: E8389M, FG1228, SP5051M, 1634703594, 1634702394, P76501M, FG1162
– 1-year warranty for customer satisfaction

Pros:
– Comprehensive fitment for various W163 models
– Includes necessary seals and gaskets for a complete install
– Focus on improving engine performance and fuel delivery
– Comes with a warranty for buyer confidence
– Often considered a good value for the price

Cons:
– Brand might be less recognized than some OEM alternatives
– Some users might still recommend professional installation for best results

Best for:
Mercedes-Benz W163 owners looking for a cost-effective and comprehensive replacement fuel pump assembly that offers a direct fit and a decent warranty.

User feedback summary: Many users appreciate the ease of installation and the immediate improvement in their vehicle’s performance. They often mention that it resolved common issues like hard starts and stalling, making their W163 run like new again.

A-Premium Electric Fuel Pump Module Assembly with Sending Unit

The A-Premium Electric Fuel Pump Module Assembly presents itself as a robust and reliable option for your Mercedes-Benz W163. This unit is designed to meet or exceed OEM specifications, aiming to deliver consistent fuel pressure and flow, which is crucial for your engine’s optimal performance. What’s great about this offering is that it typically comes as a complete assembly, meaning it includes the fuel pump itself, the fuel sending unit (which tells your fuel gauge how much gas you have), and crucial seal rings and a strainer. This completeness can save you time and hassle during installation. A-Premium also backs its product with a one-year unlimited-mileage guarantee, providing a good layer of assurance for your purchase.

Key features:
– Direct fit for Mercedes-Benz W163 Series (1998-2005 ML320, ML350, ML430, ML500, ML55 AMG)
– Includes fuel pump, fuel sending unit, 2 seal rings, and strainer
– Reference OEM Numbers: E8389M, FG1228, SP5051M, 1634703594, 1634702394
– One-year unlimited-mileage guarantee
– Crafted to high standards for peace of mind

Pros:
– Full assembly makes for a more straightforward replacement
– Specific compatibility with W163 models
– Strong warranty offering
– Reputable brand in the aftermarket parts sector
– Aims for OE-level performance

Cons:
– Price point might be slightly higher than some budget alternatives
– As with all electrical parts, quality control can vary among units

Best for:
Mercedes-Benz W163 owners seeking a complete fuel pump module assembly from a trusted aftermarket brand with a solid warranty and a focus on OEM-like performance.

User feedback summary: Owners often highlight the perfect fit and the comprehensive nature of the kit, with everything needed for the replacement included. Many report their W163 vehicles running significantly smoother after installation, with an accurate fuel gauge reading restored.

YHTAUTO Electric Fuel Pump with Sending Unit Compatible with Mercedes-Benz W163

The YHTAUTO Electric Fuel Pump is another strong contender for Mercedes-Benz W163 owners. This fuel pump assembly prides itself on delivering a consistent and powerful fuel flow, which translates directly to smoother acceleration and better engine responsiveness. A key highlight is its construction from POM material, known for its durability and fatigue resistance, suggesting a longer lifespan and reliable operation. The design also focuses on ease of installation and maintenance, featuring connectors that are simple to plug in and secure. Moreover, the manufacturer emphasizes its quiet running performance, an often-overlooked but appreciated benefit, making your driving experience more pleasant.

Key features:
– Specifically compatible with Mercedes-Benz W163 Series (1998-2005 ML320, ML350, ML430, ML500, ML55 AMG)
– Provides consistent and powerful fuel flow for smoother acceleration
– Precision-manufactured to factory standards; interchange part numbers E8389M, FG1228, 1634703594, 1634702394, SP5051M
– Made from durable and fatigue-resistant POM material
– Designed for easy plug-in installation and maintenance
– Promises quiet running performance

Pros:
– Excellent material quality (POM) for enhanced durability
– Focus on quiet operation, improving driving comfort
– Ensures proper fuel pressure for optimal engine performance
– Engineered for easy DIY or professional installation
– Direct fit for all specified W163 models

Cons:
– Warranty information isn’t as prominently featured as some competitors
– While robust, POM material can sometimes be perceived differently than metal components

Best for:
Mercedes-Benz W163 owners prioritizing durability, quiet operation, and straightforward installation in their replacement fuel pump assembly.

User feedback summary: Many reviews praise the noticeable quietness of this pump compared to their old, failing unit, along with the quick restoration of engine power and reliable starts. The quality of materials and the ease of connecting the assembly are also frequently mentioned positives.

Fuel Pump Replacement for Compatible with MERCEDES-BENZ C-Class (Not W163)

This fuel pump assembly from A ABIGAIL is designed to offer high-quality fuel delivery and stability, built and tested to meet rigorous OE standards. It comes as a complete package, including the module, sending unit, and all necessary components, aiming for a hassle-free replacement. The brand emphasizes their commitment to customer service and satisfaction.

Key features:
– High-quality construction aiming for OE standards
– Includes module, sending unit, and all necessary components
– Interchange Part No.s: E8475M P76499M FG1016 SP5056M 1520996 67974 2034702294 2034702394 A2034702394
– Customer service for troubleshooting, replacement, or refund

Pros:
– Complete assembly for easier installation
– Emphasis on high quality and OE matching
– Dedicated customer support

Cons:
– Crucially, this fuel pump is NOT compatible with Mercedes-Benz W163 models. Its application is for Mercedes-Benz C230, C240, C280, C320 (W203 Series) from 2001-2007. This makes it unsuitable for W163 owners.
– The general description does not highlight specific W163 benefits.

Best for:
Owners of Mercedes-Benz W203 C-Class models (C230, C240, C280, C320) looking for a complete and high-quality fuel pump replacement, NOT for W163 models.

User feedback summary: For its intended applications (W203 C-Class), users report satisfaction with the pump’s performance and the completeness of the package. However, this feedback is specific to W203 owners, not W163.

SCITOO Fuel Pump Electrical Assembly High Performance (Not W163)

SCITOO offers this electrical fuel pump module assembly as a high-performance alternative, promising precise fuel delivery, improved power, and balanced start-up akin to the original equipment. The brand highlights its rigorous inspection and quality control processes at every stage of production, aiming to provide a worry-free, out-of-the-box performance. Their innovative engineering is designed to meet or exceed OE performance.

Key features:
– Aims for precise fuel delivery, improved power, and balanced start-up
– Rigorous inspection and quality checks throughout production
– Innovative engineering and manufacturing technology
– 100% end-of-line inspected for reliable performance

Pros:
– Strong emphasis on quality control and performance
– Designed to match or exceed OE performance
– Ideal as a replacement for failing original pumps

Cons:
– This fuel pump is NOT compatible with Mercedes-Benz W163 models. Its fitment list includes much newer models like C300, C400, C450, E300, GLC300 from 2015-2018. This makes it unsuitable for W163 owners.
– The features are general and not specific to the W163 platform.

Best for:
Owners of certain modern Mercedes-Benz models like the C300, E300, or GLC300 (as specified in its fitment list) seeking a high-performance replacement, NOT for W163 models.

User feedback summary: For its specific, newer vehicle applications, users generally note the smooth operation and reliable starts this SCITOO pump provides. However, this is not feedback relevant to a Mercedes-Benz W163.

Electric Gas Fuel Pump assembly 2114704094 Replacement For Mercedes-Benz E/CLS-Class (Not W163)

Similar to the earlier A ABIGAIL offering, this electric gas fuel pump assembly also boasts high quality, aiming to improve the efficiency and stability of fuel delivery. It’s built and tested to the same rigorous quality standards as original equipment fuel pumps. The package includes the module, sending unit, and all necessary components for a complete and thorough replacement. The seller emphasizes their commitment to customer satisfaction and service.

Key features:
– High-quality assembly for improved fuel delivery efficiency
– Built and tested to OE quality standards
– Includes module, sending unit, and all necessary components
– Interchange Part No.s: A2114704094, 2114704094, 1521019, etc.
– Customer service for troubleshooting or returns

Pros:
– Comprehensive package for a complete replacement
– Focus on high quality and OE standards
– Good customer support

Cons:
– This fuel pump is NOT compatible with Mercedes-Benz W163 models. Its application is for Mercedes-Benz CLS500 (W203 Series) and E-Class models like E320, E350, E500 (W211 Series). This makes it entirely unsuitable for W163 owners.
– The general description does not apply to W163-specific performance or fitment.

Best for:
Owners of Mercedes-Benz CLS-Class and E-Class models (W211/C219) looking for a high-quality replacement, NOT for W163 models.

User feedback summary: When installed in its intended Mercedes-Benz E-Class or CLS-Class vehicles, users have found this pump to be a reliable and effective replacement, solving their fuel delivery problems. This feedback is specific to those models, not the W163.

Bomunik Fuel Pump For Mercedes Benz 1997-2016 W210 W463 (Unverified W163 Fitment)

The Bomunik fuel pump aims to provide a reliable replacement solution for various Mercedes-Benz models, as indicated by its broad fitment range (1997-2016). The manufacturer emphasizes rigorous process testing to ensure a high-quality product. They also highlight the ease of installation, suggesting it’s suitable for DIY enthusiasts, and back their product with a warranty service, promising support if any issues arise after use.

Key features:
– Broad stated compatibility (1997-2016 Mercedes Benz W210, W463, etc.)
– Process testing to ensure reliability and quality
– Designed for easy, self-installation
– Provides warranty service and customer assistance
– Interchange Part No.s: 0004705994, 0004706094, 0004706794, 0004707894, 0004709594

Pros:
– Focus on quality control and reliability
– Support for DIY installation
– Offers warranty service for peace of mind

Cons:
– Specific W163 compatibility is not clearly stated or easily verifiable by the provided OEM numbers, which don’t directly match the common W163 fuel pump numbers (like 1634703594). The listed compatible series (W210, W463) are not the W163 ML-Class. This raises a significant red flag for W163 owners.
– Very generic description, lacks specific details or benefits for W163.
– Requires careful verification of part numbers before purchasing for a W163.

Best for:
Owners of Mercedes-Benz W210 (E-Class) or W463 (G-Class) models who have carefully cross-referenced the provided OEM numbers. W163 owners should proceed with extreme caution and verify exact fitment as this is unlikely to be a direct replacement.

User feedback summary: With its very broad compatibility claims, user feedback would likely vary widely across different Mercedes-Benz models. Without specific W163 feedback, it’s hard to gauge its performance for the ML-Class, and W163 owners should be wary of general feedback when fitment is uncertain.

Comparison Insights: Making the Right Choice for Your W163

When it comes to picking a replacement fuel pump for your Mercedes-Benz W163, the most critical factor, by far, is correct vehicle fitment. As we’ve seen, not all Mercedes-Benz fuel pumps are created equal, and many are designed for entirely different chassis codes.

For our W163 models (ML320, ML350, ML430, ML500, ML55 AMG), the VANBOL, A-Premium, and YHTAUTO fuel pump assemblies are the clear front-runners in terms of direct compatibility. These three options explicitly state their fitment for the W163 series and list the correct OEM reference numbers (like 1634703594 and 1634702394). This is non-negotiable for a successful replacement.

Looking at these compatible options, the A-Premium and VANBOL units stand out for explicitly including all necessary components like seals, O-rings, and strainers as part of the package. This means fewer trips to the auto parts store and a more complete installation right out of the box. YHTAUTO also includes the sending unit, making it a full assembly as well.

In terms of build and materials, YHTAUTO highlights its use of durable POM material, which contributes to its quiet operation and resistance to fatigue. While VANBOL and A-Premium also promise high-quality construction and testing, YHTAUTO’s specific mention of POM might appeal to those looking for documented material strength.

Warranty and customer service are also important considerations. A-Premium offers a strong one-year unlimited-mileage guarantee, which provides substantial peace of mind. VANBOL also offers a 1-year warranty and prioritizes customer satisfaction. This kind of backing shows confidence in their products and can be invaluable if you encounter any issues.

The other listed products (from A ABIGAIL, SCITOO, and Bomunik) are simply not suitable for W163 models. While they might be excellent pumps for their intended applications (like C-Class, E-Class, or GLC models), installing them in a W163 would be a costly and frustrating mistake. Always double-check the specific application list and OEM cross-reference numbers against your vehicle’s requirements before making any purchase. Don’t assume a “Mercedes-Benz” part fits all Mercedes-Benz models!

Ultimately, for your W163, you’re looking for a direct bolt-on replacement that includes all necessary components, offers a reasonable warranty, and has positive feedback from other W163 owners.

Final Verdict: Powering Your W163 Forward

Choosing the best replacement fuel pump for your Mercedes-Benz W163 doesn’t have to be a guessing game. After sifting through the options and highlighting the critical fitment details, three clear contenders emerge for W163 owners: the VANBOL, A-Premium, and YHTAUTO fuel pump assemblies. These are the only options reviewed here that genuinely offer direct compatibility with your ML-Class.

If I had to pick a top overall performer, the A-Premium Electric Fuel Pump Module Assembly often hits a sweet spot. Its reputation as a complete, high-quality assembly, backed by a one-year unlimited-mileage guarantee, offers excellent value and reassurance. It’s a reliable choice that aims to meet or exceed OEM standards, which is exactly what you want for such a vital component.

For those looking for a slightly more budget-friendly option without sacrificing quality, the VANBOL Fuel Pump Assembly is a strong recommendation. It offers a comprehensive kit, good performance enhancements, and a decent 1-year warranty, making it a solid choice for restoring your W163’s fuel system.

And if durability and quiet operation are high on your list, the YHTAUTO Electric Fuel Pump with its POM material construction makes a compelling case. Its focus on smooth, quiet fuel delivery can significantly enhance your driving experience.

Ultimately, all three of these compatible options are designed to get your W163 back on the road reliably. The most important takeaway is to absolutely confirm the part numbers and explicit W163 fitment for any pump you consider. Avoid generic listings or pumps designed for other Mercedes-Benz models, no matter how good their reviews might be for those different vehicles. Your W163 deserves the right part!

Frequently Asked Questions about Mercedes-Benz W163 Fuel Pumps

Getting your Mercedes-Benz W163 fuel pump replaced can bring up a lot of questions. Here are some common ones to help you out:

Q1: What are the common signs of a failing fuel pump in a Mercedes-Benz W163?
A: Common symptoms include difficulty starting the vehicle, especially when the engine is warm, sputtering or stalling while driving, a noticeable loss of power or acceleration, a whining sound coming from the fuel tank area, or the engine misfiring. If you experience these, it might be time to look into a new replacement fuel pump for your Mercedes-Benz W163 model.

Q2: How often should I replace my W163 fuel pump?
A: There’s no fixed schedule for replacing a fuel pump. They’re generally designed to last the lifetime of the vehicle. However, factors like consistently running your fuel tank very low, using poor quality fuel, or simply age can cause them to fail prematurely. It’s typically replaced only when symptoms of failure become apparent.

Q3: Can I replace the fuel pump on my Mercedes-Benz W163 myself?
A: Replacing a fuel pump, especially the replacement fuel pump for Mercedes-Benz W163 models, can be a moderately challenging DIY task. It requires accessing the fuel tank, proper safety precautions (especially with fuel), and specific tools. Many W163 owners with mechanical experience do it themselves, but if you’re uncomfortable, it’s always best to consult a qualified mechanic. There are plenty of helpful installation videos on YouTube you can watch beforehand to gauge the complexity.

Q4: What’s the difference between a fuel pump and a fuel pump assembly?
A: A fuel pump is just the electric motor that pressurizes and moves fuel. A fuel pump assembly, on the other hand, is a complete unit that typically includes the fuel pump itself, a fuel sending unit (for your fuel gauge), a fuel filter/strainer, a float, and sometimes a housing or module. For a replacement fuel pump for Mercedes-Benz W163 models, it’s almost always recommended to buy a complete assembly for easier installation and to replace all wear components at once.

Q5: How do I ensure I’m buying the correct replacement fuel pump for my W163?
A: The most important step is to always double-check the product’s fitment list against your specific Mercedes-Benz W163 model, year, and engine size. Cross-reference the OEM part numbers (like 1634703594) provided in the product description with your vehicle’s original part number or a reliable parts catalog. Don’t rely solely on generic “Mercedes-Benz compatible” claims, as fitment varies widely between different models and generations.

Q6: What’s the typical cost for a Mercedes-Benz W163 fuel pump replacement?
A: The cost of the replacement fuel pump for Mercedes-Benz W163 models itself can range from $80 to $200+ for aftermarket assemblies. If you have a professional mechanic install it, labor costs can add another $200-$500, depending on your location and the shop’s rates, as it requires dropping the fuel tank in many cases. So, expect a total cost anywhere from $300 to $700+ for parts and labor.