Best Fuel Pumps for Duramax Trucks Featuring 7 Quality Options

Keeping your Duramax truck running smoothly requires reliable fuel delivery. This guide dives into seven fuel pump options, comparing their features, pros, and cons to help you choose the best one for your needs and budget. We’ll cover everything from high-performance lift pumps to replacement parts, providing real-world insights to make your decision easier.

IMAGE	PRODUCT NAME	AMAZON LINK
	AirDog A4SPBC085 PureFlow AirDog 2001-2010 Chevy Duramax…	View on Amazon
	FASS TSC10165G Titanium Signature Series Diesel Fuel Lift…	View on Amazon
	Scepter Duramax 14 Gallon Wheeled Utility Transfer Tank…	View on Amazon
	Replacement GM 12642623 6.6 diesel fuel pump/water…	View on Amazon
	6.6L LB7 Duramax Diesel Fuel Filter Housing/Head ‎with…	View on Amazon
	6.6 LB7 Duramax Fuel Filter Housing Assembly Compatible…	View on Amazon
	FASS TSC11100G Titanium Signature Series Diesel Fuel Lift…	View on Amazon

1. AirDog A4SPBC085 PureFlow AirDog 2001-2010 Chevy Duramax…

The AirDog A4SPBC085 is a popular lift pump known for its ability to provide a consistent fuel supply, even under heavy loads. It’s designed to improve fuel pressure and protect your injection system.

• Key Features:
• Lift Fuel Pump Diesel Truck Kit with Plastic Ties
• AirDog Fuel Pump

• A4SPBC085

• Pros:

• Increased fuel flow
• Improved fuel pressure

• Enhanced engine performance

• Cons:

• Can be expensive

• Installation may require professional help

• User Feedback Summary: Generally positive reviews praising its performance and reliability. Some users note the higher price point.

2. FASS TSC10165G Titanium Signature Series Diesel Fuel Lift Pump

The FASS TSC10165G is a high-performance lift pump designed for demanding applications. Its robust construction and advanced filtration system protect your engine from contaminants.

• Key Features:
• Protects and extends the life of your injection system
• Optimizes MPG (results will vary)
• Improves cold weather performance
• Removes water, air, and debris from diesel fuel
• Supports up to 900hp

• Limited Lifetime Warranty

• Pros:

• Excellent filtration
• High fuel flow capacity
• Durable construction

• Lifetime warranty

• Cons:

• High price point

• Complex installation

• User Feedback Summary: Users consistently praise its performance and filtration capabilities, though the cost is a frequent discussion point.

3. Scepter Duramax 14 Gallon Wheeled Utility Transfer Tank

This isn’t a fuel pump in the traditional sense, but it’s a valuable addition for those needing extra fuel capacity. The Scepter tank is a portable solution for carrying and transferring diesel. It’s not a direct replacement or upgrade for your truck’s fuel pump.

• Key Features:
• 14-gallon (53L) fuel caddy
• Heavy-duty portable gas tank
• 2 fueling modes (gravity-flow and manual pump/siphon)
• Easy-to-use design

• Safety features (child safety lock, spill-proof mechanism)

• Pros:

• Convenient for carrying extra fuel
• Durable construction

• Multiple fueling options

• Cons:

• Not a fuel pump replacement

• May not be suitable for all applications

• User Feedback Summary: Mostly positive feedback from users needing a portable fuel storage and transfer solution.

4. Replacement GM 12642623 6.6 diesel fuel pump/water separator

This is a direct replacement part for the factory fuel pump/water separator on certain Duramax models. It’s a budget-friendly option for repairing a faulty original part.

• Key Features:
• Fuel primer pump assembly with filter
• Direct fit for 2004.5-2016 Chevy/GMC 2500HD/3500 6.6L Duramax

• OEM replacement

• Pros:

• Affordable
• Easy installation (for those familiar with the process)

• Direct replacement for factory part

• Cons:

• Not a performance upgrade
• Lower flow rate compared to lift pumps

• May require professional installation for some

• User Feedback Summary: Mixed reviews, with some users reporting successful installations and others encountering issues.

5. 6.6L LB7 Duramax Diesel Fuel Filter Housing/Head with Parallel Pipeline

This is a replacement fuel filter housing for older Duramax engines (2001-2004 LB7). It’s crucial for maintaining fuel cleanliness and preventing engine damage.

• Key Features:
• Replacement fuel filter head for 2001-2004 6.6L Duramax LB7
• Parallel pipeline installation

• High-quality materials

• Pros:

• Improves fuel filtration
• Prevents engine damage from contaminants

• Relatively affordable replacement

• Cons:

• Only for specific Duramax models (LB7)

• Not a performance enhancement

• User Feedback Summary: Generally positive for users with older LB7 engines needing a replacement.

6. 6.6 LB7 Duramax Fuel Filter Housing Assembly Compatible with 2001-2004 Chevy/GMC

Similar to the previous entry, this is another replacement fuel filter housing assembly for 2001-2004 LB7 Duramax engines. Choosing between this and #5 depends on specific model year and any modifications to your truck’s fuel system.

• Key Features:
• Fits 2001-2004 Silverado 2500 HD & 3500, Sierra 2500 HD & 3500
• Part Number: 97780061 (Verify compatibility)

• Includes fuel filter and water-in-fuel sensor

• Pros:

• Complete assembly for easy replacement
• High-quality materials

• Includes necessary components

• Cons:

• Only for specific Duramax models (LB7)

• Not a performance upgrade

• User Feedback Summary: Reviews are generally positive, highlighting ease of installation and improved fuel cleanliness.

7. FASS TSC11100G Titanium Signature Series Diesel Fuel Lift Pump

This is another high-performance lift pump from FASS, offering similar features to the TSC10165G but with potentially higher flow rate depending on your engine’s needs.

• Key Features:
• Whisper Technology (quieter operation)
• Removes water, air, and debris from diesel fuel
• 2-micron filtration rating
• Protects and extends the life of your injectors

• Fuel mileage improvement (results will vary)

• Pros:

• Excellent filtration
• High fuel flow capacity
• Quieter operation than some competitors

• Protects injectors

• Cons:

• High price point

• Complex installation

• User Feedback Summary: Generally positive, highlighting the quiet operation and excellent filtration. The cost remains a key factor in purchase decisions.

Practical Buying Advice:

Your choice depends on your truck’s year, mileage, and intended use. If you’re experiencing fuel delivery problems, a replacement pump (like #4, #5, or #6) might suffice. For performance enhancements and improved longevity, consider a lift pump like the AirDog or FASS systems (#1, #2, or #7). Always verify part compatibility before purchasing.

FAQ:

Q: How often should I replace my fuel filter?
A: Consult your owner’s manual for the recommended interval. Generally, it’s recommended to replace the fuel filter every 15,000-25,000 miles, or more frequently if you operate in harsh conditions.

Q: What are the signs of a failing fuel pump?
A: Symptoms include hard starting, poor engine performance, loss of power, and fuel starvation under heavy loads.

Q: Can I install these fuel pumps myself?
A: Some replacements are relatively straightforward, while lift pump installations are generally more complex and often require mechanical expertise.

Q: What’s the difference between a lift pump and a replacement fuel pump?
A: A lift pump increases fuel flow and pressure, improving performance and protecting the injection system. A replacement pump simply replaces a faulty original unit.

Q: How much should I expect to spend on a new fuel pump?
A: Prices vary widely, from a few hundred dollars for replacement pumps to over a thousand for high-performance lift pumps.

Q: Will a new fuel pump improve my fuel economy?
A: While some high-performance lift pumps may slightly improve fuel economy by optimizing fuel delivery, it’s not guaranteed, and the impact can vary.

Q: What is a fuel filter housing and why is it important?
A: The fuel filter housing holds the fuel filter, which removes contaminants from your diesel fuel. A clean fuel system is essential for proper engine operation.