FF5971NN Fuel Filter, M90 x 2 Spin-On, 11.5 in Height, 4.74 in Outside Diameter, Replacement for Fleetguard FF5971NN and Cummins 5575143
FF5971NN fuel filter, M90 x 2 spin-on replacement for Cummins X15. 292 mm height. Cross reference Cummins 5575143, Baldwin BF46248, WIX WF10891.
Description
The FF5971NN fuel filter is a large spin-on diesel fuel filter with an M90 x 2 thread, used on recent Cummins X15 engines. IXIN Filter manufactures this FF5971NN fuel filter as a factory-direct replacement for the Fleetguard FF5971NN and Cummins 5575143, giving distributors, fleets and repair shops a dependable option for scheduled fuel filter replacement.
IXIN has produced filters since 2010 and supplies customers in more than 60 countries. Browse our full range of fuel filters for trucks, buses, construction and agricultural machinery.
FF5971NN Fuel Filter Specifications
| Attribute | Detail |
|---|---|
| Product Type | Spin-On Diesel Fuel Filter |
| Overall Height | 292.1 mm (11.5 in) |
| Largest Outside Diameter | 120.3 mm (4.74 in) |
| Gasket Outside Diameter | 120.3 mm (4.74 in) |
| Gasket Inside Diameter | 101.6 mm (4.00 in) |
| Thread Size | M90 x 2-7H (internal, metric) |
| Replaces | Fleetguard FF5971NN / Cummins 5575143 |
Please confirm dimensions against your sample or drawing before ordering in bulk.
Compatible Applications
Cross-reference data lists the FF5971NN fuel filter for:
- Cummins X15 engines (2020 emissions and later)
- Trucks using these engines, such as Freightliner, International, Kenworth, Peterbilt, Volvo and Western Star models with the X15
Fit depends on the engine and emissions version. Please confirm your engine model, year and the OE number of your existing filter before ordering.
FF5971NN Cross Reference / Replacement Numbers
The FF5971NN fuel filter is a cross reference to the following part numbers:
| Brand / Source | Part Number |
|---|---|
| Fleetguard | FF5971NN |
| Cummins | 5575143 |
| Baldwin | BF46248 |
| Donaldson | DBF5811 |
| WIX | WF10891 |
| Luber-finer | LFF5686 |
OE and aftermarket part numbers are listed for reference only. All brand names belong to their respective owners, and IXIN is not affiliated with them. Always confirm fit against your engine before ordering.
Why Fuel Filter Replacement Matters
Dirt, rust, water and wax in diesel fuel can damage injectors and high-pressure fuel pumps. A fuel filter captures these contaminants before the fuel reaches the engine. Regular replacement helps prevent hard starting, power loss and costly injector repairs, especially on modern high-pressure common rail engines that run long hours.
Why Choose IXIN’s FF5971NN Fuel Filter
- Factory-Direct Supply: IXIN manufactures filters in its own factory in Linxi County, Hebei. You deal with the manufacturer, not a trading company.
- Wide Cross-Brand Coverage: One FF5971NN fuel filter replaces Fleetguard, Cummins, Baldwin and Donaldson references, which helps distributors simplify inventory.
- Large Spin-On Format: The self-contained spin-on body is replaced as one unit, so service is quick and clean.
- Customization Available: We support customization of filter paper quality, metal thickness and packaging for your market.
- Fast Delivery: In-stock items usually ship in 5 to 10 days. Made-to-order items take 15 to 45 days, depending on quantity.
To avoid cross-reference mistakes, read our fuel filter cross reference guide before placing a bulk order.
Installation and Maintenance Notes
- Switch off the engine and let it cool. Close the fuel shutoff valve if fitted.
- Place a drain pan under the filter, and remove the old filter with a suitable filter wrench.
- Check that the old gasket came off with the filter. A leftover gasket can cause leaks.
- Clean the mounting surface, and lightly oil the gasket of the new FF5971NN fuel filter.
- Spin the new filter on by hand until the gasket touches, then tighten as specified by the engine manufacturer.
- Prime the fuel system according to the engine manual, start the engine, and check for leaks.
- Replace the filter at the interval recommended by the engine maker, and sooner when using poor-quality fuel.
FAQ
Q: Which part numbers does the FF5971NN fuel filter replace?
A: It is a cross reference to Fleetguard FF5971NN, Cummins 5575143, Baldwin BF46248, Donaldson DBF5811, WIX WF10891 and others listed above. Confirm fit before bulk orders.
Q: What thread does the FF5971NN fuel filter use?
A: It uses an M90 x 2-7H metric thread. Make sure your filter head matches before ordering.
Q: Which engines does the FF5971NN fuel filter fit?
A: It is listed for Cummins X15 engines with 2020 emissions and later. Fit varies by engine version, so send us your OE number, engine model or a photo of the old filter, and we will help confirm.
Q: Can I order with custom packaging or private label?
A: We support customized packaging, filter paper quality and metal thickness. Contact our sales team with your requirements.
Q: What are the MOQ and lead time?
A: In-stock goods generally ship in 5 to 10 days, and made-to-order items take 15 to 45 days. Get in touch with us for MOQ on the FF5971NN fuel filter.
Need the FF5971NN fuel filter or other heavy-duty fuel filters? Send us the OE number, and we will reply with specifications and a quotation.
Email: sales@ixinfilters.com | WhatsApp: +86 18833443345 | Get a quote





