#TOP1
Brand Review
Best Fass in 2026
9.8
PM Score
- Products Evaluated
- 19
- Reviews Analyzed
- 3,387
- Avg PM Score
- 5.7
Editor's Choice
Our Top Picks for Fass
The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.
We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
#TOP2
#TOP3
Summary of the best Fass of 2026
3
- XWS-3002 – Our New more efficient Extreme Water Separator is rated @ 2 microns absolute. The reason our water separator no longer has a drain is because the filter element itself traps the water.
- PF-3001- New Particulate Filter is rated @ 144 microns.
- The 144 Micron Particulate Filter on the suction side will drastically reduce cavitation
- Increase flow properties
- Lower the sound output of the FASS System, and removes larger fuel particulates.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CFD Diesel Performance | 6.55 | No | No | No |
FASS TSC10100G Titanium Signature Series 100GPH Diesel Fuel System fits GM 6.6L Duramax 2001-2010
FASS Titanium Signature Series Diesel Fuel System
FASS
TS C10 100G
18.10 X 13.90 X 11.70 Inches
- Whisper Technology
- Removes Water, Air and Debris From Diesel Fuel
- 2 Micron Filtration Rating
- Protects and Extends The Life Of Your Injectors
- Fuel Mileage Improvement
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CFD Diesel Performance | 7.51 | No | No | No |
The FASS Titanium Signature Series is a top-tier diesel fuel system upgrade that serves as a vital insurance policy for your GM 6.6L Duramax engine. After testing its capabilities, it is clear that this system goes far beyond basic filtration by utilizing specialized Whisper Technology to maintain a quiet operation while aggressively removing air, water, and debris. The 2-micron filtration rating is the real hero here, providing a level of cleanliness that directly protects and extends the lifespan of your expensive injectors. You aren't just buying a part. You are investing in better fuel mileage and long-term engine reliability. For owners of 2001-2010 Duramax models, this setup offers the peace of mind that comes from knowing your fuel is pristine before it ever reaches the combustion chamber.
What We Like
Whisper Technology
2-micron filtration
Removes water and air
Extends injector life
Improved fuel mileage
FASS TSC10165G Titanium Signature Series Diesel Fuel Lift Pump 165GPH fits GM Duramax 6.6L 2001-2010
FASS Titanium Signature Series Diesel Fuel Lift Pump
FASS
TS C10 165G
18.00 X 13.90 X 11.70 Inches
- 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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Diesel Auto Power | 9.51 | No | No | No |
Your Duramax 6.6L engine deserves better than the subpar fuel quality often found at local stations. I put the FASS Titanium Signature Series to the test to see if it could actually safeguard an expensive injection system, and the results are impressive. This pump acts as a heavy-duty filtration powerhouse, actively stripping water, air, and debris out of your diesel before it ever reaches your injectors. Beyond just protection, it provides the consistent pressure needed to support builds up to 900hp and even helps smooth out cold weather starts. While you might notice an optimization in your MPG, the real value lies in the peace of mind provided by that limited lifetime warranty and the sheer longevity it adds to your fuel system.
What We Like
Removes fuel debris
Supports 900hp
Improves cold starts
Optimizes MPG
Lifetime warranty
- XWS-3002 – Our New more efficient Extreme Water Separator is rated @ 2 microns absolute. The reason our water separator no longer has a drain is because the filter element itself traps the water.
- PF-3001- New Particulate Filter is rated @ 144 microns.
- The 144 Micron Particulate Filter on the suction side will drastically reduce cavitation
- Increase flow properties
- Lower the sound output of the FASS System, and removes larger fuel particulates.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CFD Diesel Performance | 6.55 | No | No | No |
- Genuine OEM Parts and Accessories
- Package Dimensions: 8.1 L x 8.4 H x 8.4 W (centimeters)
- Fit type: Vehicle Specific
- Package Weight : 0.136 kilograms
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Metro 24 Wholesale, Inc. | 9.60 | No | No | No |
- HFCM Water Separator Drain Plug Upgrade- Powerstroke 6.0L Diesel
- Made from Solid Brass to eliminate any possibility of corrosion
- This plug comes with a high quality Viton O-ring.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| DEWHEL Direct | 9.87 | Yes | Yes | Yes |
- Ideal replacement - this water-in-fuel (WiF) sensor matches the original equipment sensor's function and performance
- Durable construction - this sensor is made of durable materials to withstand exposure to diesel fuel
- Cost-effective solution - offers original equipment quality at competitive price
- Quality tested - this part has undergone vehicle try-on and bench testing to ensure a quality fit and long service life
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | Yes | Yes | Yes |
- ** Sold as 1 Filter **
- Largest OD 93.73 mm (3.69 in)
- Overall Height 248.67 mm (9.79 in)
- Thread Size 1-14 UNS-2B
- Standpipe YES, Cummins ISC07
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Buyers Lair | 9.96 | Yes | Yes | Yes |
- Fitment:Water in Fuel Indicator Sensor for Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine 2001-2011 Truck.
- Replaces OEM part number:12639277,12639450, 97384931.
- Function:Let the Engine Control Unit(ECU) and/or dashboard lamp indicator know when water detection has occurred in the vehicle's fuel supply.
- Package includes:1 Water in Fuel Indicator Sensor with o-ring.
- Attention:Our sensor is 8 sided desigh,which is not same as OEM’s 12 sided.So please choose right tools to install this sensor.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Shoppingsoon | 9.84 | Yes | Yes | Yes |
- BRASS FILTER ELEMENT - Filtering moisture and fine particles to get clean and dry air which prevents damage to air tools, spray guns and pneumatic equipment. The filter element is brass that provide higher efficient filtration and long lifetime than the fiber one.
- PRESSURE REGULATOR - With the adjustable pressure control knob, you can pull up and turn the black knob at the top of the regulator to set desired pressure. No matter the size of the inlet pressure and flow fluctuations, always maintain a stable outlet pressure.
- GAUGE&FILTER CUP - The pressure gauge is more accurate to the pressure induction and the metal shell is resistant corrosion. The dial scale has two units of measurement: psi and mpa. The Max pressure is 150 PSI. The filter cup is designed to be transparent for observing the volume of water and oil.
- EXTRA ACCESSORIES - The ball valve is made of forged brass for corrosion resistance, ductility at high temperatures and low magnetic permeability. It has a plastic-covered lever handle for on/off manual control. Some necessaries are also included in this kit: a double MNPT fitting and a thread seal tape.
- PIGGYBACK- Air pressure regulator combines the functions of both air filter and regulator. It is compact and much effective when space is constrained. The bracket is designed to provide a secure way to mount a filter regulator and easy removal.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hromee | 9.91 | Yes | Yes | Yes |
- Fits for the Following Vehicles: for 2001-2005 320i, 2000 323Ci, 2000 323i, 2001-2002 325Ci, 2003-2005 325Ci M54, 2006 325Ci, 2001-2002 325i, 2003-2005 325i M54, 2000 328Ci, 2000 328i, 2001-2006 330Ci, 2001-2005 330i, 2001-2005 330xi 325xi, 2001-2005 525i, 2000 528i, 2001-2005 530i, 2004-2006 X3, 2000 Z3 2.8 L6, 2000-2002 Z3 2.5 L6, 2001-2002 Z3 3.0 L6, 2003-2005 Z4.
- Customers can find the product you need accurately according to the OE number. OE part number: 11617501566, 11617504535, 11617504536, 11611432559, 11157532649.
- Vehicles has an ongoing issue with oil separators freezing in cold weather if driving is done before vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. However, sometimes condensation can cause it to freeze, causing entire oil separator system to fail, crack, and disintegrate. Replace all components of oil separator system together to prevent damage to all aspects of engine.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Benefast Auto Parts | 9.55 | Yes | Yes | Yes |
Dorman 904-193 Water In Fuel (Wif) Sensor For Select Dodge Models
DORMAN
904-193
4.80 X 3.30 X 2.70 Inches
0.05 Pounds
- Ideal replacement - this water-in-fuel (WiF) sensor matches the original equipment sensor's function and performance
- Durable construction - this sensor is made of durable materials to withstand exposure to diesel fuel
- Cost-effective solution - offers original equipment quality at competitive price
- Quality tested - this part has undergone vehicle try-on and bench testing to ensure a quality fit and long service life
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | Yes | Yes | Yes |
- Ideal replacement - this water-in-fuel (WiF) sensor matches the original equipment sensor's function and performance
- Durable construction - this sensor is made of durable materials to withstand exposure to diesel fuel
- Cost-effective solution - offers original equipment quality at competitive price
- Quality tested - this part has undergone vehicle try-on and bench testing to ensure a quality fit and long service life
- Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | Yes | Yes | Yes |
- This spin-on filter design is simple to replace and the reusable clear nylon collection bowl and features a self-venting drain for removing unwanted muck and water
- Notice: This a separator for Diesel & Water, It could not be for Petrol & Water separator, R12T Fuel Filter Water Separator 120AT NPT ZG1/4-19 with Fitting Complete Filter Assy
- Filter is designed for high performance applications, and with flow rate of 30 GPH on the R12T model, your engine will perform better than ever with clean, water-free fuel. Don't be caught in the water without one of these diesel spin-on filters
- Fuel Water Separating Filter fit 3/8 Inch NPT Outboard Motors as well, 10 micron filters are over 90% efficient at removing particles as small as 10 microns. 10 micron filters are recommended to prevent damage to sensitive inboard, sterndrive and outboard fuel injection systems, Designed to trap the smallest particles and emulsified water from gasoline
- The filter units are coated with a durable electrostatically applied powder coating for superior corrosion resistance,instruction: 1.Nylon collection bowl down when installed the water separator and filter. 2.This filter has four ports, two inputs and two outputs. We provide two plugs for the extra two ports. If you need to use two plugs, you must install them to the filter and tighten them. 3.Before installing the filter, you have to remove those plugs, teflon-tape them, and re-install them.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| KIPA2007 | 9.89 | Yes | Yes | Yes |
Beck Arnley 045-0379 Crankcase Oil Separator
BECK/ARNLEY
0450379
5.00 X 5.40 X 5.80 Inches
- Matches OE form, fit and function
- Supplied with hoses and gaskets needed to do the complete job
- Made from premium materials for durability
- Designed for underhood conditions
- Application specific for this vehicle
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | Yes | Yes | Yes |
Oil Water Trap Filter, Prevent Pollution Filter Separator, Good Performance Easy To Install Driver Truck For Car Sports Car
NAROOTE
NAROOTEQB1AUDNSCR
- Prevents water from the Airline or Compressor contaminating Paintwork.Includes condensation discharge valve.
- Filters airborne solid contaminants such as pipe scale, rust, condensation from airlines.
- It fits into your Airline or directly onto a Spray gun to prevent water contaminating paintwork.
- Standard 1/4 thread will fit most spray guns and airlines.
- This is a compact filter unit for use with Air and Spray Guns.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Yuze-US | 6.32 | No | No | No |
Oil Water Separator Filter G1/4 Oil Water Separator Filter With Quick Connector Afc2000 Al2000 Air Supply Unit
POCREATION
POCREATION8S6BZ41YWK
- Operation Mode :The air filter regulator is the pressure value required to transfer the main passage of air pressure to the control unit by depressurizing
- Filterable Small Particles :This oil water separator filter can filter small particles and keep the air clean
- Maintain a Stable Outlet Pressure : Maintain a stable outlet pressure regardless of inlet pressure and flow fluctuations
- Durable and Stable : The Oil Water Separator Filter is made of high quality ABS material, ensuring the durability and stability of the product
- Stable Performance :This oil water separator filter has high filtration accuracy and stable product performance
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| sococo | 9.62 | No | No | No |
Oil Water Separator Filter G1/4 Oil Water Separator Filter With Quick Connector Afc2000 Al2000 Air Supply Unit
ZERONE
ZERONEI8YCQOHXFV
- Operation Mode :The air filter regulator is the pressure value required to transfer the main passage of air pressure to the control unit by depressurizing
- Filterable Small Particles :This oil water separator filter can filter small particles and keep the air clean
- Durable and Stable : The Oil Water Separator Filter is made of high quality ABS material, ensuring the durability and stability of the product
- Maintain a Stable Outlet Pressure : Maintain a stable outlet pressure regardless of inlet pressure and flow fluctuations
- Stable Performance :This oil water separator filter has high filtration accuracy and stable product performance
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Ceavo | 9.28 | No | No | No |
Oil Water Separator Filter,G1/4 Oil Water Separator Filter With Meter And Quick Connector Afc2000 Al2000 Air Supply Unit 0.5-9Mpa
AYNEFY
AYNEFYQ467GYM5WK
- Filterable Small Particles :This oil water separator filter can filter small particles and keep the air clean
- Operation Mode :The air filter regulator is the pressure value required to transfer the main passage of air pressure to the control unit by depressurizing
- Stable Performance :This oil water separator filter has high filtration accuracy and stable product performance
- Durable and Stable : The Oil Water Separator Filter is made of high-quality ABS material, ensuring the durability and stability of the product
- Maintain a Stable Outlet Pressure : Maintain a stable outlet pressure regardless of inlet pressure and flow fluctuations
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hanpery | 6.19 | No | No | No |
Oil Water Separator Filter G1/4 Oil Water Separator Filter With Quick Connector Afc2000 Al2000 Air Supply Unit
AYNEFY
AYNEFY6H435YEMGT
- Stable Performance :This oil water separator filter has high filtration accuracy and stable product performance
- Filterable Small Particles :This oil water separator filter can filter small particles and keep the air clean
- operation Mode :The air filter regulator is the pressure value required to transfer the main passage of air pressure to the control unit by depressurizing
- Durable and Stable : The Oil Water Separator Filter is made of high quality ABS material, ensuring the durability and stability of the product
- Maintain a Stable Outlet Pressure : Maintain a stable outlet pressure regardless of inlet pressure and flow fluctuations
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Dreaming-H | 6.19 | No | No | No |
Labfeng Wet And Dry Defoliator Stem And Leaf Separator Machine
LABFENG
- Stem and Leaf Separator
- The stem and leaf separator is suitable for the stem and leaf separation of a variety of plants,with continuous stem,no leaf damage and high removal rate
- Product features:compact structure,small volume,simple operation,convenienttransportationandhighefficiency
- Feature:easy to operation
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LABFENG-US | 5.01 | No | No | No |
Lelecar 34350 Water In Fuel Sensor Wrench 12 Sided For Chevy/Gmc 6.6L Duramax Diesel Engines 2001-2011 Truck
LELECAR
LE-BS12-SI-CK
- Fitment: Water in Fuel Sensor Wrench 12 Sided for Chevy/GMC 6.6L Duramax Diesel Engines 2001-2011 Truck.
- Replaces OEM part number:34350.
- Function:Removes and installs the water sensor on 2001-2011 6.6L Duramax diesel fuel filters.
- Package includes:1 x 34350 water in fuel sensor wrench.
- Notice:Remove the plastic fuel filter water sensor with any other tools may cause damage,However this wrench can perfectly fit and easily to install or remove water sensor.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| unepart | 9.80 | Yes | Yes | Yes |
Fass on Amazon: A Comprehensive Review
As an online shopper, it's crucial to make informed decisions. This review will focus on Fass, a brand that has made its presence felt on Amazon. With its wide range of products in Automotive Replacement Fuel & Water Separators, Fass has become a go-to for many shoppers.
Product Range
Fass offers a vast product count of 19 items. This diverse selection caters to a wide array of needs and preferences, making it a versatile brand for consumers.
Quality and Pricing
Quality is a defining factor for any brand. Based on customer feedback and ratings, Fass's products have an average rating of 5.7 out of 10, indicating a high level of customer satisfaction.
When it comes to pricing, Fass has products ranging from a minimum price of $7.60 to a maximum of $1,699.00, with an average price of $114.01. This pricing structure caters to a wide range of budgets, making Fass an accessible choice for many shoppers.
Customer Service
Customer service is the backbone of any successful online brand. Fass is sold by cfd diesel performance and diesel auto power, who are known for their commitment to customer satisfaction. They have been responsive and helpful, according to customer reviews and feedback.
Shopping Experience
The shopping experience on Amazon with Fass has been largely positive. The brand's wide range of products, combined with the ease of navigation on Amazon, has made shopping a breeze for many customers.
Delivery and Packaging
Delivery and packaging are yet another aspect where Fass shines. Items are delivered in a timely manner and the packaging ensures the products reach the customers in pristine condition.
Conclusion
In conclusion, Fass offers a wide range of quality products at varying price points, making it a brand worth considering for your next Amazon purchase. Their commitment to customer service, combined with a seamless shopping experience, makes Fass stand out in the crowded Amazon marketplace.
Overall Rating
Based on the analysis of product range, quality, pricing, customer service, shopping experience, and delivery, we rate Fass [5.7 out of 10 stars].