- Shipping is free over $75.
- At this time, we accept website purchases for returns (excluding all custom orders, straps, nest boxes and marked down items) for store credit only, no refunds. Read More Here.
Genuine Mopar 68197867AB Fuel Water Separator Filter | OEM Frame-Mounted Filter for Ram 6.7L Cummins Diesel
Description
Protect your injectors from catastrophic failure. Your 6.7L Cummins relies on ultra-pure fuel to hold high-pressure rail performance. The Genuine Mopar 68197867AB Fuel Water Separator is the factory-spec rear frame-mounted defense that strips 99% of emulsified water and harmful contaminants before they reach your fuel pump. Don't risk a $5,000 repair bill on a budget filter — run the OEM standard.
Technical Significance
Engineered for heavy-duty diesel components because fuel purity equals engine longevity. Modern common-rail injectors have tolerances thinner than a human hair; even microscopic water droplets cause corrosion and tip erosion. This authentic Mopar 68197867AB keeps your fuel system within factory operating parameters, preserving horsepower and fuel economy.
OEM vs. Aftermarket Comparison
| Feature | Genuine Mopar (OEM) (This Product) | Generic Aftermarket Filters |
|---|---|---|
| Water Removal | 99%+ efficiency (lab tested) | Often bypasses emulsified water |
| Micron Rating | Exact 6.7L Cummins spec | Universal fit (risks bypass or clogging) |
| Seal Integrity | High-temp nitrile O-ring included | Low-grade rubber prone to fuel leaks |
| Warranty Safe | 100% manufacturer compliant | May void engine repair claims |
Package Contents
- (1) Authentic Mopar fuel water separator filter (Part #68197867AB)
- (1) Premium sealing gasket for a vacuum-tight fit
- Factory-sealed original packaging — guaranteed brand new
Vehicle Compatibility
A direct-fit OEM replacement for vehicles with the 6.7L I6 Cummins Turbo Diesel:
- Ram 2500 & 3500 (Pickup): 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
- Ram 4500 & 5500 (Chassis Cab): 2013–2024+
Interchange / Cross-Reference: 68197867AA, FS20089, 68157291AA.
This is the frame-mounted filter. Most 2013+ Rams use a dual-filter system — be sure to check both.
Service Indicators
- "Water in Fuel" dashboard light illuminated
- More than 15,000 miles since your last fuel service
- Hard starting or engine surging under load
- A sudden drop in MPG or sluggish throttle response
Not sure it fits? Send us your VIN or Engine Serial Number (ESN) and we'll confirm 100% compatibility before you buy. Brand new, factory-sealed, and shipped fast.
Recently viewed
Customer Reviews
5.0 / 5
★★★★★
Based on 1 review
-
★★★★★ Dash light went off and stayed off
Water in fuel light came on during a long highway stretch. Swapped this genuine Mopar 68197867AB in at my next stop and cleared the code. Light has been off for 12,000 miles since. Genuine part, perfect fit, included the O-ring. Don't trust anything but OEM for the fuel system on a Cummins.
Frequently asked questions
How do I know this part fits my vehicle?
Every listing includes a full compatibility list by make, model, year, and engine. If you're unsure, send us your VIN or Engine Serial Number (ESN) via the chat or contact page and we'll confirm fitment before you order.
Are these genuine OEM parts or aftermarket alternatives?
Every product we sell is 100% genuine OEM — factory-sealed and sourced directly from the manufacturer or authorized distributors. We do not sell aftermarket substitutes or white-box alternatives.
Do I need a professional to install these parts?
Most fuel filters and basic maintenance components are straightforward DIY installs with basic hand tools. We recommend consulting your vehicle's service manual for torque specs and bleed procedures. For ignition components and TPMS sensors, a relearn procedure may be required — see the product description for details.