Products Parameter
| Product Name | Fuel Filter |
| Part Number | FF42138 |
| Brand | Cummins/Fleetguard |
| Engine Model(Application) | Cummins ISX15 QSX15 X15 ISM QSM11 Engine |
| Weight | / |
| Size | / |
| Condition | 100% Brand New |
| Packaging | 12 pcs/carton |
| Quality | Genuine Original |
| Warranty | 6 months |
| MOQ | 1 PCS/SET |
| Packaging Method | Neutral Packing / Original Packing / Customized |
About Us
FAQ
Q: 1.Which engine models and truck applications is the FF42138 fuel filter compatible with?
A: The FF42138 secondary fuel filter is engineered for heavy-duty diesel engine platforms, particularly Cummins (ISX15, QSX15, X15, ISM, QSM11) and select PACCAR MX-13 / Kenworth / Peterbilt heavy-duty trucks equipped with High-Pressure Common Rail (HPCR) fuel systems. It is widely used in long-haul trucks, mining machinery, and power generation equipment.
Q: 2. What is the primary function and filtration rating of the FF42138 fuel filter?
A: The FF42138 serves as a secondary/final fuel filter (fine filter) installed downstream of the fuel water separator. Key functions include:
Micro-Filtration Efficiency: Removes fine sub-micron particles, dirt, rust, and organic contaminants from diesel fuel.
Fuel Injection Protection: Protects high-pressure common rail (HPCR) injectors and fuel pumps from premature wear, clogging, and abrasion.
Q: 3. What are the primary OEM part numbers and cross-reference numbers for FF42138?
A: The FF42138 replaces and interchanges with major OEM and aftermarket part numbers, including:
Cummins OE Part Numbers: 4319712, 431971200, 5308722
Donaldson: P551063 / P551065
Mann-Filter: WK 11 027 z
Baldwin: PF46143 / PF46238
WIX: WF10443
PACCAR / Kenworth / Peterbilt: K37-1029, K371029
Q: 4. Which fuel water separator (primary filter) should be paired with the FF42138?
A: For complete fuel system protection on Cummins heavy-duty engine platforms, it is strongly recommended to pair the FF42138 (Secondary Fine Filter) with the matching primary fuel water separator element, such as Fleetguard FS53014 or FS1000 / FS1040 (depending on the exact housing and fuel processor setup).
Q: 5. Is this filter suitable for use with biodiesel blends (B20/B30) or low-sulfur diesel (ULSD)?
A: Yes. The FF42138 is designed with high-grade synthetic/cellulose blend media that is fully compatible with Ultra-Low Sulfur Diesel (ULSD) as well as Biodiesel blends up to B20, ensuring structural integrity and consistent flow under changing fuel properties.
Q: 6. Do you supply original Fleetguard filters or high-quality aftermarket equivalents?
A: We supply flexible sourcing options to meet your business needs:
100% Original Genuine Fleetguard filters in official packaging.
Premium OEM-grade aftermarket replacements manufactured strictly according to original specifications, offering high cost-performance for bulk distributors.
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