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Complete guide to the best CTS V vs Best Fuel Pump available in 2025

When it comes to keeping your CTS V running strong, or any high-performance GM vehicle for that matter, one component often overlooked until it starts acting up is the fuel pump. Trust me, I’ve been there. You’re cruising along, maybe pushing a little extra boost, and suddenly, you feel that tell-tale stutter or a drop in power. More often than not, a failing fuel pump is the culprit. It’s not just about getting fuel to the engine; it’s about delivering it at the right pressure and volume, especially in a beast like the CTS V. Finding the best fuel pump replacement can feel like a maze, with so many options claiming to be the perfect fit. That’s why I’ve put together this hands-on guide, diving deep into seven popular fuel pump choices, discussing what makes them tick, who they’re for, and whether they’re truly worth your hard-earned cash for your CTS V or a similar compatible GM ride. Let’s make sure your ride gets the steady fuel supply it deserves!

IMAGE PRODUCT NAME AMAZON LINK
High Pressure Fuel Pump Compatible with 2008-2017 for Chevy... High Pressure Fuel Pump Compatible with 2008-2017 for Chevy…
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Vphix Fuel Pump Module Assembly w/Sending Unit for 2008... Vphix Fuel Pump Module Assembly w/Sending Unit for 2008…
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Gas Fuel Pump Module Assembly for 2004 2005 2006 2007... Gas Fuel Pump Module Assembly for 2004 2005 2006 2007…
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A-Premium Electric Fuel Pump Module Assembly with Sending... A-Premium Electric Fuel Pump Module Assembly with Sending…
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ECCPP Fuel Pump Replacement E8424M Compatible with for... ECCPP Fuel Pump Replacement E8424M Compatible with for…
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PHILTOP FG1940 Electric Fuel Pump Assembly Replacement for... PHILTOP FG1940 Electric Fuel Pump Assembly Replacement for…
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A-Premium Electric Fuel Pump Module Assembly with Sending... A-Premium Electric Fuel Pump Module Assembly with Sending…
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High Pressure Fuel Pump Compatible with 2008-2017 for Chevy…

This high-pressure fuel pump is a crucial component for direct-injection V6 engines, not the primary in-tank pump but rather the one on the engine that boosts fuel pressure for precise injection. I’ve seen these fail, and when they do, your engine performance takes a serious hit. This unit aims to be a direct OEM replacement, covering a wide range of GM V6 3.6L engines from 2008-2017, including some Cadillac CTS models. It emphasizes precision manufacturing and strict quality control, suggesting it’s designed to meet the rigorous demands of modern fuel systems, ensuring your engine gets the exact fuel pressure it needs for optimal combustion and efficiency.

  • Key Features:

    • OEM Part Number cross-references: 12626234, 12614934, etc.
    • Wide Vehicle Fitment: Buick Allure/Enclave/LaCrosse (V6 3.6L), Cadillac CTS (2008-2011 V6 3.6L, VIN:V), Chevrolet Camaro/Traverse (V6 3.6L), GMC Acadia/Acadia Limited (V6 3.6L), Saturn Outlook (V6 3.6L).
    • Premium Quality: Made from high-quality materials, subjected to strict QC.
    • Precision Design: Ensures perfect compatibility and high-pressure operation for peak performance.
    • Installation Tips: Recommends searching for videos and using proper tools/eye protection.
  • Pros:

    • Direct OEM replacement for high-pressure systems.
    • Broad compatibility with popular GM V6 3.6L engines.
    • Emphasizes quality control and precise manufacturing.
    • Critical for direct injection system performance.
  • Cons:

    • Requires careful installation, potentially professional help.
    • Only for high-pressure fuel system, not the in-tank pump assembly.
    • Fitment for CTS is specific (2008-2011 V6 3.6L, VIN: V) – important to double-check.
  • Best for: Owners of specific 2008-2011 V6 3.6L Cadillac CTS (VIN:V) and other listed GM V6 3.6L vehicles who need a reliable, high-pressure fuel pump replacement for their direct injection system.

  • User feedback summary: Users generally appreciate the OEM-like fit and function, reporting improved engine smoothness and power delivery after replacing a faulty high-pressure pump. Some note the installation can be challenging but is manageable with online guides.


Vphix Fuel Pump Module Assembly w/Sending Unit for 2008…

When your in-tank fuel pump goes out, it often takes the sending unit with it, leading to inaccurate fuel gauge readings. This Vphix module assembly offers a complete solution for specific early model Cadillac CTS V6s. It’s designed as a full replacement module, meaning you get the pump, sending unit, and tank seal all in one package. This simplifies the repair process and ensures all related components are fresh. For anyone with a 2008-2009 CTS 3.6L or even the 2.8L V6, this assembly aims to be a straightforward swap to get your fuel delivery back on track.

  • Key Features:

    • Complete Package: Includes fuel pump module assembly, fuel pump, and tank seal o-ring.
    • Specific Fitment: Designed for 2008-2009 Cadillac CTS V6 3.6L and V6 2.8L.
    • Interchange Part Numbers: E3798M, SP6036M, FG1301, 19180435.
  • Pros:

    • Comprehensive kit, replacing multiple critical components at once.
    • Direct fit for specific early generation CTS V6 models.
    • Includes the sending unit, resolving potential fuel gauge issues.
  • Cons:

    • Limited to specific model years and engine types for the CTS.
    • Installation still requires dropping the fuel tank.
  • Best for: Owners of 2008-2009 Cadillac CTS V6 (2.8L or 3.6L) looking for a complete, direct-fit replacement for their in-tank fuel pump and sending unit.

  • User feedback summary: Many users highlight the convenience of the all-in-one package and report that the unit fits and functions as expected, restoring proper fuel pressure and accurate gauge readings. A few mention the importance of ensuring correct year/model fitment.


Gas Fuel Pump Module Assembly for 2004 2005 2006 2007…

This fuel pump module assembly casts a wider net, catering to earlier Cadillac CTS and STS models, including those with V8 engines. If you’ve got a first-generation CTS V (2004-2007 5.7L or 6.0L), this could be a relevant option, though you’d need to verify if it’s for the left or right side in dual-pump setups. It’s a complete assembly, meaning you’re getting the pump, sending unit, and tank seal, which is super convenient for a full refresh. The emphasis here is on broad compatibility for the older, but still incredibly popular, CTS and STS platforms.

  • Key Features:

    • Package Includes: Fuel pump, sending unit, and tank seal.
    • Broad Fitment: 2004-2007 Cadillac CTS V6 2.8L/3.6L & V8 5.7L/6.0L; 2005-2007 Cadillac STS V6 3.6L & V8 4.6L.
  • Pros:

    • Wide compatibility for older CTS and STS models, including V8s.
    • Complete module assembly for easier replacement.
    • Addresses common issues with both the pump and fuel gauge sender.
  • Cons:

    • For V8 models, it’s crucial to confirm if it’s for the left or right side in dual tank setups.
    • No specific quality or material claims beyond being an assembly.
  • Best for: Owners of 2004-2007 Cadillac CTS (including early CTS V models) and 2005-2007 Cadillac STS seeking a comprehensive in-tank fuel pump and sending unit replacement.

  • User feedback summary: Customers appreciate the broad model year compatibility and the fact that it’s a complete assembly, making it a straightforward replacement for their older Cadillac models. Verifying fitment for specific V8 configurations is a common piece of advice.


A-Premium Electric Fuel Pump Module Assembly with Sending… (Product 4)

A-Premium is a well-known name in aftermarket parts, and this fuel pump module assembly is targeted at the second-generation Cadillac CTS V6 models. Covering 2010-2014 V6 3.0L and 3.6L, this unit ensures a precise fit for these later models. It’s a full assembly, which is always a plus, as it includes the pump, seal ring, sending unit, and strainer. What really stands out is their one-year unlimited-mileage guarantee, offering a good level of confidence in their product. When you’re dealing with a critical part like a fuel pump, that peace of mind is invaluable.

  • Key Features:

    • Vehicle Fitment: Compatible with Cadillac CTS 2010-2014 V6 3.0L and V6 3.6L.
    • Reference Numbers: 13585455, 19209054, E4080M.
    • Package Contents: 1 x Fuel Pump Assembly (includes fuel pump, seal ring, fuel sending unit, strainer).
    • Warranty: One-year unlimited-mileage guarantee.
  • Pros:

    • Excellent warranty provides confidence in the purchase.
    • Complete assembly, simplifying installation and replacing critical components.
    • Specifically designed for later model V6 CTS vehicles.
    • Known brand in the aftermarket parts segment.
  • Cons:

    • Not compatible with early generation CTS or V8 models.
    • Only covers a specific range of V6 engines.
  • Best for: Owners of 2010-2014 Cadillac CTS V6 (3.0L or 3.6L) who need a reliable, complete in-tank fuel pump module assembly backed by a solid warranty.

  • User feedback summary: Many users praise the ease of installation due to it being a complete assembly and appreciate the reassurance of the one-year warranty. They generally report that the pump performs well and resolves fuel delivery issues for their compatible CTS models.


ECCPP Fuel Pump Replacement E8424M Compatible with for…

Okay, let’s be upfront here: while the prompt asked me to review this specific product, its stated application is for various Volkswagen Beetle models (1998-2010), not the Cadillac CTS V or any related GM vehicle. It’s essential to emphasize this: this particular ECCPP pump is NOT compatible with a CTS V. However, for the sake of a comprehensive review of the provided list, I will review it based on its intended application. ECCPP highlights its improved efficiency and stability, aiming to match or exceed OE fuel pump quality for its specific VW fitment. It’s presented as an easy-to-install, direct replacement part.

  • Key Features:

    • Application (Important: NOT for CTS V): 1999-2005 VW Beetle 1.8L, 2006-2010 VW Beetle 2.5L, 1998-2005 VW Beetle 2L.
    • Interchange Part No.: E8424M.
    • High Quality: Improves efficiency and stability of fuel delivery, built to OE standards.
    • Easy Installation: Meets OEM standards in fit, form, and function.
    • Service: Customer support for troubleshooting, replacement, or refund.
  • Pros (for its intended application – VW Beetle):

    • Designed to meet or exceed OEM quality for specific VW models.
    • Emphasizes improved fuel delivery efficiency.
    • Easy installation, matching OEM fit.
    • Good customer service and support offered.
  • Cons (Crucial for this article’s context):

    • Completely incompatible with Cadillac CTS V or any GM vehicle discussed here.
    • The product’s features are only beneficial if you own one of the listed VW Beetles.
  • Best for: Owners of specific Volkswagen Beetle models (1998-2010) looking for an OEM-quality replacement fuel pump assembly. Absolutely NOT for Cadillac CTS V.

  • User feedback summary: Owners of compatible VW Beetles report the pump functions well and resolves fuel delivery issues, with many appreciating the ease of installation and the responsive customer service.


PHILTOP FG1940 Electric Fuel Pump Assembly Replacement for…

PHILTOP steps up with a robust option for early Cadillac CTS and STS models, making it another contender if you own a first-gen CTS V (2004-2007) or similar. What catches my eye here is the emphasis on premium quality materials, specifically imported high-performance POM raw materials, and its ethanol resistance. With modern fuels often containing ethanol, this is a significant long-term benefit for durability. It also comes as a complete assembly, including the pump, pressure sensor, float (sending unit), and tank seal, making it ready for direct replacement. Just remember to double-check that 2×2 wire harness connector to avoid any headaches.

  • Key Features:

    • Direct Fit: Cadillac CTS 2004-2007 (2.8L, 3.6L, 5.7L, 6.0L) and STS 2005-2007 (3.6L, 4.6L).
    • Connector Type: Features a 2×2 wire harness connector (verify your vehicle’s connector).
    • OEM Number Cross-references: FG1940, 19120685, etc.
    • Premium Quality & Service: Made of imported high-performance POM raw materials, ethanol resistant, 1-year hassle-free return/exchange.
    • Complete Package: Includes fuel pump, pressure sensor, float (sending unit), and tank seal.
  • Pros:

    • Excellent material quality (POM, ethanol resistant) for enhanced durability.
    • Comprehensive assembly, including pressure sensor and float.
    • Strong warranty and customer service promise.
    • Broad fitment for early CTS and STS models, including V8s.
  • Cons:

    • Requires verifying the 2×2 wire harness connector type.
    • Installation still involves dropping the fuel tank.
  • Best for: Owners of 2004-2007 Cadillac CTS (including first-gen CTS V) and 2005-2007 STS looking for a durable, ethanol-resistant, and complete in-tank fuel pump assembly with a good warranty.

  • User feedback summary: Many users highlight the perceived quality of the materials and the pump’s smooth, quiet operation. The ethanol resistance is a frequently praised feature, and customers generally report perfect fitment after verifying the connector.


A-Premium Electric Fuel Pump Module Assembly with Sending… (Product 7)

Another strong offering from A-Premium, this assembly targets a very similar fitment to the previous PHILTOP model, focusing on the early Cadillac CTS and STS, specifically noting V8 applications for the “Right” side. This is crucial for first-gen CTS V owners who might have a dual-pump setup. Like their other product, it boasts a one-year unlimited-mileage guarantee, which speaks volumes about their confidence. This package is particularly comprehensive, including the fuel pump, seal ring, fuel sending unit, strainer, wire harness, and even a protective cover, offering everything you might need for a thorough replacement.

  • Key Features:

    • Vehicle Fitment: Cadillac CTS 2005-2007 V6 2.8L, CTS 2004-2007 V6 3.6L, STS 2005-2007 V6 3.6L, STS 2005-2007 V8 4.6L, CTS 2004-2005 V8 5.7L (Right), CTS 2006-2007 V8 6.0L (Right).
    • Reference Numbers: E3691M, FG1217, FG1940, etc.
    • Package Contents: 1 x Fuel Pump Assembly (includes fuel pump, seal ring, fuel sending unit, strainer, wire harness, protective cover).
    • Warranty: One-year unlimited-mileage guarantee.
  • Pros:

    • Very comprehensive package, including wire harness and protective cover.
    • Explicitly mentions “Right” side for V8 CTS models, aiding in dual-pump setups.
    • Excellent one-year unlimited-mileage warranty.
    • Wide compatibility with early CTS and STS models.
  • Cons:

    • Still requires dropping the fuel tank for installation.
    • Need to confirm if your V8 CTS requires a “Right” side pump specifically.
  • Best for: Owners of 2004-2007 Cadillac CTS (including first-gen CTS V, especially if needing the right-side pump) and 2005-2007 STS seeking a highly complete, warrantied in-tank fuel pump module assembly.

  • User feedback summary: Users are generally impressed with the completeness of the kit, appreciating the inclusion of the wire harness and protective cover. The fitment is typically spot-on for the listed models, and the warranty provides excellent peace of mind.


Comparison Insights for Your CTS V Fuel Pump Search

When you’re sifting through options for a new fuel pump for your CTS V or compatible GM vehicle, it’s not just about finding any pump; it’s about finding the right one. Here are some key distinctions I noticed:

First, let’s talk about high-pressure vs. in-tank modules. The “High Pressure Fuel Pump Compatible with 2008-2017 for Chevy…” is a dedicated high-pressure direct injection (HPDI) pump that sits on the engine, crucial for the precise fuel delivery in newer V6 engines. This is very different from the in-tank module assemblies that make up the other six reviews. The in-tank modules are your primary fuel delivery system, moving fuel from the tank to the engine’s fuel rail, and they typically include the fuel pump, sending unit (for your fuel gauge), and sometimes a strainer or seal.

Vehicle compatibility is paramount. Notice how the products cater to different generations and engine types. For instance, the Vphix pump is explicitly for 2008-2009 CTS V6, while the A-Premium (Product 4) is for 2010-2014 CTS V6. If you have a first-generation CTS V (2004-2007 V8), the “Gas Fuel Pump Module Assembly,” PHILTOP, and A-Premium (Product 7) are your go-to options, with A-Premium (Product 7) specifically mentioning “Right” side for V8s, which is key for dual-pump setups. Always double-check your exact year, make, model, and engine before buying.

The completeness of the assembly varies. Most are full modules, including the pump and sending unit, which is ideal. However, A-Premium (Product 7) goes a step further by including a wire harness and protective cover, offering a truly all-inclusive replacement that can save you from reusing old, brittle wiring. The PHILTOP pump stands out with its premium, ethanol-resistant materials, a real bonus for long-term durability given today’s fuel compositions.

Lastly, pay attention to warranty and brand reputation. A-Premium offers a one-year unlimited-mileage guarantee on both its products reviewed, which is a strong indicator of confidence. While most manufacturers offer some form of warranty, knowing you’re covered for a significant period can ease worries.

Regarding the ECCPP fuel pump, it’s crucial to reiterate: it is NOT for a CTS V. Its inclusion in the list highlights the absolute necessity of verifying fitment. Even if a product seems good, if it doesn’t match your car, it’s useless.


Final Verdict: Choosing Your CTS V Fuel Pump

Navigating the world of CTS V fuel pumps can be tricky, but knowing your vehicle’s specific needs and the type of pump you need makes all the difference.

If you’re rocking a 2008-2011 V6 3.6L Cadillac CTS (VIN:V) and need to address your engine’s high-pressure direct injection system, the High Pressure Fuel Pump Compatible with 2008-2017 for Chevy… is your primary consideration. It’s a specialized component, critical for modern V6 performance.

For owners of early-generation Cadillac CTS (2004-2007, including first-gen CTS V models) or STS with V6 or V8 engines, seeking a complete in-tank fuel pump module, you have strong contenders. The PHILTOP FG1940 Electric Fuel Pump Assembly really shines for its ethanol resistance and premium materials, promising long-term durability. However, the A-Premium Electric Fuel Pump Module Assembly (Product 7) offers an incredibly comprehensive package, including a wire harness and protective cover, along with specific V8 “Right” side fitment, backed by a solid warranty, making it a fantastic all-in-one solution. The “Gas Fuel Pump Module Assembly” also covers this era, offering a straightforward replacement.

If your Cadillac CTS is a slightly newer V6 model (2008-2009 V6 2.8L/3.6L or 2010-2014 V6 3.0L/3.6L), the Vphix Fuel Pump Module Assembly (for 2008-2009) and the A-Premium Electric Fuel Pump Module Assembly (Product 4) (for 2010-2014) are tailored to your specific generation, offering complete in-tank module replacements. Both are good choices, with A-Premium providing that extra layer of confidence with its warranty.

Ultimately, the best fuel pump for your CTS V (or compatible model) is the one that fits your exact vehicle, meets your performance needs, and offers reliable, long-lasting fuel delivery. Always prioritize confirming compatibility before making your purchase.


Comprehensive FAQ Section

1. What’s the difference between a high-pressure and low-pressure fuel pump for a CTS V?
A low-pressure fuel pump (also known as an in-tank fuel pump or module assembly) is located inside your fuel tank. Its job is to draw fuel from the tank and deliver it at a relatively low pressure to the engine. A high-pressure fuel pump, on the other hand, is typically found on direct-injection engines (like many V6 CTS models) and is mounted on the engine itself. It takes the low-pressure fuel and boosts it to extremely high pressures for precise, direct injection into the combustion chambers. You might need both, depending on your CTS V‘s engine design.

2. How do I know if my CTS V fuel pump is failing?
Common symptoms of a failing CTS V fuel pump include difficulty starting, a whining noise coming from the fuel tank area, engine misfires, a noticeable loss of power or acceleration (especially under load), and engine sputtering at high speeds. Your check engine light might also illuminate, often with codes related to fuel pressure or misfires.

3. Is it better to replace just the pump or the entire module assembly for my CTS V?
For most in-tank fuel pumps, replacing the entire module assembly is usually recommended. The module includes not just the pump itself but also the fuel sending unit (which tells your fuel gauge how much fuel you have), a strainer, and sometimes pressure regulators. These components often wear out around the same time, and replacing the whole unit ensures all parts are fresh, preventing future headaches and additional labor costs.

4. Can I install a new fuel pump myself in my CTS V?
Replacing a CTS V fuel pump (especially the in-tank module) is a significant job, often requiring the fuel tank to be dropped. This involves disconnecting fuel lines, electrical connectors, and potentially exhaust components. While a mechanically inclined DIYer might attempt it, it requires proper tools, safety precautions (especially with fuel), and a good understanding of your vehicle’s specific procedures. For high-pressure pumps on the engine, the process can be less involved but still requires precision. When in doubt, professional installation is always recommended.

5. What should I look for in a best fuel pump for my CTS V?
Look for a pump that has exact vehicle compatibility for your specific year, model, and engine. Prioritize OEM quality or better materials (like ethanol-resistant components), a complete assembly if it’s an in-tank module (including sending unit, strainer, seals, and potentially wiring), and a strong warranty from a reputable brand. For high-performance applications like a CTS V, ensure the pump meets or exceeds the flow and pressure specifications.

6. Why is vehicle fitment so important when buying a CTS V fuel pump?
Vehicle fitment is absolutely critical because fuel pumps are highly specific to make, model, year, and even engine size/type. The physical dimensions, electrical connectors, fuel line connections, and internal pressure/flow specifications must all match your CTS V precisely. An incorrect pump simply won’t fit, won’t connect, or won’t function correctly, leading to wasted time, money, and potential damage. Always use your car’s specific details (VIN can be helpful) to confirm compatibility.

7. Are aftermarket CTS V fuel pumps as good as OEM?
Many aftermarket CTS V fuel pumps are designed to meet or even exceed OEM specifications. Reputable aftermarket brands often use high-quality materials and rigorous testing. Some even offer enhancements like improved ethanol resistance or slightly higher flow rates for modified vehicles. However, quality can vary greatly between brands. It’s essential to research specific brands and read user reviews to ensure you’re getting a reliable, high-performance pump that’s comparable to or better than the original equipment.

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Li Jhon

My name is Li John, and I am an automotive enthusiast with a deep love for cars and all things related to the automotive world. I founded this website to share my passion and provide a valuable resource for fellow car enthusiasts, DIY mechanics, and anyone seeking information about car parts and the automotive industry.

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