FF5971NN is a screw-on type fuel filter, specially designed for heavy-duty engines, providing efficient filtration protection.Suitable for Cummins L9, ISL9, B6.7, ISB6.7 engines, as well as X15 engines of brands such as Freightliner, International, Kenworth, Peterbilt, Spartan Motors, Volvo, and Western Star.
Item No :
FF5971NNPayment :
T/TProduct Origin :
CHINAShipping Port :
SHANGHAI, NINGBO, GUANGZHOUDescription:
Filter medium: Utilizes NanoNet filter medium, with a filtration accuracy of 4 microns and a filtration efficiency exceeding 99.6%. It can effectively remove harmful substances such as particles, water, fungi, bacteria, sediment and wax from the fuel.
Filter effect: Compared to traditional filters, it can capture more harmful pollutants, providing better protection for fuel injection equipment and ensuring that the fuel meets the cleanliness level recommended by the fuel injection equipment manufacturer.
High-quality standard: Meets or exceeds the original equipment manufacturer (OEM) standards, ensuring performance and durability.
Extended service life: Has a high dust retention capacity, which can prolong the service life of fuel injection equipment, reduce maintenance frequency and downtime.
Anti-vibration performance: The NanoNet filter medium can better retain captured particles during engine vibration, preventing them from re-entering the fuel supply system.
Product Information:
| Part Number | FF5971NN |
| Filter Type | Fuel Filter |
| Size |
Height: 292.1 mm Outer Diameter: 120.3 mm Thread Diameter: 90 mm Thread Pitch: 2 mm |
| Cross Reference |
5575143 BF46248 DBF5811 FF5971NN |
| Application |
for 2020 Through 2023 Cummins X15 Engines |
Our Service
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| OEM Support: Custom product and packaging options available. | Sample Orders: We welcome sample orders for testing. | Quick Response: We respond to inquiries within 24 hours. |
Payment Options: T/T, PayPal, Alipay.
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Sample Delivery: 3-15 days.
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Order Delivery: 20-30 working days, depending on quantity. |
Shipping: Available by sea, air, or express.
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Test the products upon receipt and contact us if there are any issues. |

FAQ
Q: How is the quality of your products?
A. Our advanced machines and materials ensure excellent performance and craftsmanship.
B. Customized materials and standards are available to meet specific market needs.
Q: What are the payment terms?
LC, T/T, D/P, PayPal, Western Union, Small-amount payment, Money Gram
Q: Do you provide samples?
Yes, samples are available (free or at cost, depending on product); shipping paid by the buyer.
Q: What packaging options are available?
A. Custom packaging
B. White or natural packaging
C. Color box options
Q: What is the delivery time?
A. Generally, 15-30 days.
B. Stock items: shipped within 7 days after payment.
Q: What are the loading ports?
Ningbo and Shanghai ports.
Q: What are the shipping methods?
A. Sea, air, and land.
B. For multiple sources in China, we can help coordinate with a shipping agency to consolidate your shipments.
Our hours
Mon 11/21 - Wed 11/23: 9 AM - 8 PM
Thu 11/24: closed - Happy Thanksgiving!
Fri 11/25: 8 AM - 10 PM
Sat 11/26 - Sun 11/27: 10 AM - 9 PM
(all hours are Eastern Time)