
374.FD8421 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $78.69 | Condition is Used, Diesel Fuel Water Separator Filter from 2021 Ford F350SD 6.7L 11924918, FREE SHIPPING | ![]() |

Ford 374.FD8421 Diesel Fuel Water Separator Filter for 2021 F-350 SD 6.7L (11924918)
Description:The Ford 374.FD8421 Diesel Fuel Water Separator Filter is a crucial component in the fuel delivery system of your 2021 F-350 SD 6.7L. Designed specifically for this application, this filter ensures the efficient and effective separation of water and other contaminants from your diesel fuel.
Constructed using high-quality materials, the filter housing is engineered to withstand the rigors of heavy-duty use. The filter element itself is made of a pleated media that provides a large surface area for water and contaminant trapping. The pleats create multiple layers of filtration, ensuring that even the smallest water droplets and particles are captured before they reach the fuel injectors.
This Ford diesel fuel water separator filter is easy to install and replace. It is designed to fit securely in the fuel tank, and the filter element can be changed without draining the fuel tank. The filter's O-ring seal ensures a tight fit and a leak-free installation.
The filter's design includes a sight glass that allows you to easily monitor the water separation process. As water and contaminants accumulate in the filter, they become visible in the sight glass, indicating that it's time for a replacement.
By using the Ford 374.FD8421 Diesel Fuel Water Separator Filter, you can help protect your fuel system from costly damage caused by water and contaminants. Regular filter replacement is essential for maintaining the performance and longevity of your vehicle's fuel system.
Key Features:* Designed for 2021 F-350 SD 6.7L with 6.7L Power Stroke diesel engine
* High-quality filter housing material for durability
* Pleated media filter element for effective water and contaminant separation
* Easy installation and replacement process
* Sight glass for monitoring water separation process
By investing in the Ford 374.FD8421 Diesel Fuel Water Separator Filter, you can ensure the optimal performance of your 2021 F-350 SD 6.7L and extend the life of your fuel system.
The Ford 374.FD8421 diesel fuel water separator filter is designed for use in the 2021 F350 SD 6.7L diesel engine. This filter helps in separating water and other contaminants from the fuel before it reaches the engine, ensuring its optimal performance. Here are some pros and cons of buying this filter:
Pros:1. Enhances engine performance: The water separator filter prevents water and other contaminants from entering the engine, ensuring that it runs smoothly and efficiently.
2. Improves fuel economy: By preventing the entry of water and other contaminants, the filter helps in improving the fuel economy of the vehicle.
3. Increases the lifespan of the engine: By protecting the engine from harmful contaminants, the filter helps in increasing its lifespan and reducing the need for repairs and maintenance.
4. Easy to install: The filter is easy to install and can be done without the need for any specialized tools or skills.
Cons:1. Cost: The Ford 374.FD8421 diesel fuel water separator filter is relatively expensive compared to some other filters in the market.
2. Frequent replacement: Depending on the driving conditions and the quality of the fuel, the filter may need to be replaced more frequently than expected.
3. Limited availability: The filter may not be readily available in all auto parts stores, and customers may need to order it online.
Ending Conclusion:The Ford 374.FD8421 diesel fuel water separator filter is an essential component for vehicles with the 2021 F350 SD 6.7L diesel engine. While it may be expensive and require frequent replacement, the benefits it offers in terms of engine performance, fuel economy, and longevity make it a worthwhile investment.
Recommendation:If you own a 2021 F350 SD with a 6.7L diesel engine, it is highly recommended to install a water separator filter, such as the Ford 374.FD8421, to ensure optimal engine performance and longevity. While the upfront cost may be high, the long-term benefits and savings far outweigh the initial investment. It is also recommended to change the filter regularly, as per the manufacturer's recommendations or based on your driving conditions and fuel quality.
Details:
In the automotive world this can be quite a task.
specifications inboardfuel:
- for models: F350sd
- for years: 2021
- brand: Ford Truck
- part type: Fuel Filter
- conditions options: 6.7td
- genuine oem: Yes
- ipn: 374.fd8421
- make: Ford
seller inboardfuel:
- city: spokane, washington
- rating: 99.7%
- # reviews: 40186
shipping inboardfuel:
- transit: 2-5 days
- class: standard
- carrier: fedex
- type: fixed
- service: fedex ground / fedex home delivery
returns inboardfuel:
- time: 60 days
- paid by: seller
- policy: returns accepted
offer inboardfuel:
- sold #: 16
- availability: in stock
- started: october 23, 2025
- price: $78.69
- item condition: Used
- options: ship-to-home
- in stock #: 1
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
payments inboardfuel:
- credit card: diners-club
- wallet: apple-pay
- other
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