Valtrix Powertrain
Genuine Fleetguard FS20172 Fuel Water Separator (Pack of 6) | OEM Diesel Filter for Cummins 6.7L
Genuine Fleetguard FS20172 Fuel Water Separator (Pack of 6) | OEM Diesel Filter for Cummins 6.7L
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Maximize your uptime with the ultimate bulk protection. For the 6.7L Cummins owner who doesn't miss a service, this Pack of 6 Fleetguard FS20172 Filters ensures you always have factory-spec protection on the shelf. As the original equipment for Cummins, Fleetguard's Stratapore™ media is the only filtration technology designed to keep your high-pressure common rail system free from the emulsified water that destroys injectors.
🧠 WHY THIS MATTERS
At Valtrix Powertrain, we know that fleet maintenance is about preventing catastrophic failure before it starts. The FS20172 isn't just a filter; it's a Cummins-engineered component. Fleetguard (a Cummins company) uses proprietary multi-layered media that provides superior particle holding capacity compared to standard paper filters. By purchasing this 6-pack, you ensure that every fuel service over the next 90,000 miles is handled with the exact same precision the engine had the day it left the factory.
🆚 OEM vs AFTERMARKET
| Feature | Genuine Fleetguard FS20172 | Generic Aftermarket Packs |
| Media Type | Stratapore™ Multi-Layer Synthetic | Single-layer cellulose (paper) |
| Water Removal | 95%+ Emulsified Water Removal | Often under 70% efficiency |
| Service Life | Full 15,000-mile capacity | Prone to "plugging" prematurely |
| Pump Safety | Optimized for Cummins Lift Pumps | Can cause vacuum restriction |
📦 WHAT’S INCLUDED
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(6) Genuine Fleetguard FS20172 Fuel Water Separators
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(6) New Sealing O-Rings (Pre-packaged with each filter)
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Factory Bulk Packaging (Ensures cleanliness and authenticity)
⚙️ COMPATIBILITY
This filter is a direct OEM replacement for the following Cummins-powered applications:
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Ram 2500 / 3500 / 4500 / 5500: 2019, 2020, 2021, 2022, 2023, 2024+
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Cummins Engine Series: B6.7, QSB6.7 (Tier 4 Final)
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Interchange: Mopar 68436631AA, 68436631AB, Cummins 5526401.
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💡 Note: This is the frame-mounted separator. For 2019+ Ram models, always pair this with the engine-mounted NanoNet filter for 100% protection.
🚨 SIGNS YOU NEED THIS
Don't wait for the tow truck. Stock up and replace if:
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"Water in Fuel" warning is persistent.
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Cold Weather Prep: Prevent fuel gelling and waxing in winter months.
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Bulk Service: You manage a fleet and need consistent performance across all trucks.
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High Mileage: You drive more than 30,000 miles a year and want to lower your cost-per-mile.
🛒 WHY BUY FROM VALTRIX
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Bulk Savings: Get the best price-per-filter by purchasing the 6-pack.
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100% Genuine Fleetguard: We are authorized distributors of Cummins-sourced products.
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Fast Logistics: We ship bulk orders quickly to minimize your fleet's downtime.
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Expert Support: Our team can verify compatibility for your entire fleet via VIN or Engine Serial Number (ESN).
Keep your Cummins protected for the long haul. Stop overpaying at the dealership for single filters. Stock your shop with the best name in diesel filtration.
👉 [ADD TO CART] and secure your 6-pack of Fleetguard FS20172 today.
❓ FAQ
Q: Is this the same as the Mopar 68436631AA?
A: Yes. Fleetguard is the OEM manufacturer for Mopar. The FS20172 is the Fleetguard-branded version of that exact same filter, offering identical performance and fitment.
Q: Will these filters expire if they sit on my shelf?
A: As long as they stay in their original sealed packaging in a dry environment, these filters have an indefinite shelf life.
Q: Does this fit the 2013–2018 Ram 6.7L?
A: No. This filter (FS20172) is specifically for the 2019 and newer Ram trucks. For 2013–2018 models, you will need the FS20089/68197867AB style.

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