423-8521 is a fuel water separator specifically designed for Caterpillar (CAT) excavators, generators and other construction machinery. It features both efficient filtration and oil-water separation capabilities, effectively removing impurities and moisture from diesel, protecting the engine's fuel system, extending the lifespan of key components, and is suitable for various harsh working conditions.
Item No :
WG9000360521/1Payment :
T/TProduct Origin :
CHINAShipping Port :
SHANGHAI, NINGBO, GUANGZHOUDescription:
The multi-layer composite filter material design can effectively intercept solid impurities with a size of ≥10 microns. At the same time, it can quickly separate the free water in the fuel, reducing the risk of wear and carbon deposition in the fuel injector and faults in the fuel system, and improving the combustion efficiency. The outer shell is made of high-strength steel treated with anti-rust treatment, which is shock-resistant and corrosion-resistant, suitable for harsh working environments such as construction sites and mines. The filter paper has a low-pressure loss characteristic, ensuring smooth fuel flow and not affecting the engine's power output. The structure is compact, the weight is light, and the top interface design facilitates quick disassembly and replacement, shortening the equipment's downtime for maintenance and reducing labor costs.
Product Information:
| Part Number | 423-8521 |
| Filter Type | Fuel Filter Water Separator |
| Size |
Weight:1042 g Height :270 mm Outer Diameter:108 mm Thread Size:1"-14 |
| Cross Reference |
4238521 FS20051 B0CWG5TBQ1 BF9903-SP FS20051 SK 3168 2110146 |
| Application |
Applicable to C18, C15, C13, C32 engines and 345C excavators |
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)