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Genuine Mopar 68065608AA Fuel Filter (MO-608) | OEM Engine-Mounted NanoNet® Filter for Ram 6.7L Cummins
Description
Stop the debris before it reaches your CP4. Your 6.7L Cummins is a powerhouse, but its fuel system is highly sensitive to even the smallest particulates. The Genuine Mopar 68065608AA (MO-608) is the engine-mounted NanoNet® filter that provides a 2-micron barrier of protection. Don't let a cheap alternative be the reason you're replacing high-pressure injectors.
Technical Significance
Technical Significance
Diesel filtration is about more than just fitting in the housing. The MO-608 uses specialized synthetic media that holds high flow rates even as it captures extreme levels of contaminants. This filter is essential for maintaining the correct fuel rail pressure required for optimal combustion — without it, you risk premature high-pressure pump wear and reduced engine life.
OEM vs. Aftermarket Comparison
OEM vs. Aftermarket Comparison
| Feature | Genuine Mopar 68065608AA (This Product) | Generic Aftermarket Filters |
|---|---|---|
| Filter Media | NanoNet® synthetic technology | Standard thin paper media |
| Efficiency | 99%+ at 2 microns | Often permits particles up to 10 microns |
| Structural Integrity | Reinforced to prevent collapse | Prone to pleat bunching under vacuum |
| Engine Warranty | Fully supported by FCA/Mopar | Risk of denied claims for fuel failure |
Package Contents
Package Contents
- (1) Authentic Mopar engine-mounted fuel filter (P/N 68065608AA / MO-608)
- (1) OEM nitrile sealing O-ring
- Mopar factory-fresh packaging
Vehicle Compatibility
Vehicle Compatibility
The engine-mounted fuel filter for Ram Heavy Duty trucks:
- Ram 2500 & 3500: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024+
- Ram 4500 & 5500: 2013–2024 Chassis Cab
- Engine: 6.7L Cummins Turbo Diesel
Interchange / Cross-Reference: MO-608, 68065608AB, 514316AC, FS53000.
Typically used in the front engine-mounted canister. Always pair with a new rear frame-mounted separator for a complete service.
Service Indicators
Service Indicators
- Decreased power — the engine feels choked during heavy towing
- Low rail pressure codes on the dash
- Service counter: 15,000-mile manufacturer interval reached
- Poor start-up — excessive cranking before the engine catches
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
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★★★★★ Power came back, codes cleared — this is the right filter
Was getting a "fuel rail pressure low" code and losing power on hills with my 2019 Ram 3500. Swapped the MO-608 and MO-631 together. Power is back, no codes for 8,000 miles. Genuine Mopar — the NanoNet synthetic media holds up way longer than the cheap stuff. Don't mess around with off-brand filters on a high-pressure 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.