391-3764 Fuel Water Separator Filter CAT Heavy Equipment
391-3764 fuel water separator filter for CAT construction and mining machinery. High-efficiency composite filter media separates water and captures fuel impurities. Anti-rust yellow steel housing with oil-resistant rubber seal prevents leakage. Stable internal structure maintains consistent filtration performance under heavy load. Exact OEM thread and dimension for direct replacement. Strict water separation and pressure resistance testing finished, single kraft carton packing. Protects fuel injectors and extends engine service life.

| Item | Specification |
|---|---|
| Main Part Number | 391-3764 |
| HS Code | 8421299000 |
| Filter Type | Fuel Water Separator Spin-on Filter |
| Housing Material | Anti-rust Coated Steel Shell |
| Filter Media | Water Separation Composite Filter Paper |
| Seal Material | Oil-resistant Nitrile Rubber |
| Filter Dimension D×H | 110mm × 250mm |
| Single Net Weight | 1.15kg |
| Single Gross Weight | 1.28kg |
| Individual Package Size | 120mm×120mm×260mm |
| Interchangeable Part Number | 3913764 |
| Compatible Brand | CAT |
| Applicable System | Engine Fuel Supply Circuit |
| Warranty | 12 Months |
| Production Standard | ISO 16889 Filtration Standard |
| Part Number | Applicable Equipment Models |
|---|---|
| 391-3764 | CAT 3406,3512,773,775,D9R,D10T,992 |
| 1R-0770 | CAT C9,C10,C12 Engine Excavators |
| 438-5386 | CAT 320GC,336GC,349GC |
| 233-9856 | CAT 730,735,740 Articulated Trucks |
| 133-5673 | CAT D6N,D7E,D8L Track Dozers |
- ISO 9001 certified.
- 100% pressure, flow, and leakage tested before shipment to ensure quality.
- Comply with construction machinery hydraulic component industry standards.
- 10+ years of professional experience in manufacturing excavator hydraulic parts, mature technology, stable quality.
- Sufficient inventory, ready stock for popular models, fast delivery.
- Support OEM/ODM customization, develop special models per customer requirements.
- Complete after-sales team, provide technical consultation, installation guidance, troubleshooting.
- Free replacement or repair for non-human quality issues within warranty period.
- Provide technical support for installation, commissioning, and operation.
- Lifetime supply of wearing parts and maintenance services at cost price.


lSSUES YOU MAY BE CONCERNED ABOUT
HERE IS THE ANSWER!
Q1:How long is the warranted time?
A: For natural broken, 3 months. Guarantee genuine parts.
Q2: What's payment you can accept?
A: T/T, WECHAT,PAYPAL.
Q3: What's package? Can you give me the package according my requirement?
A: Yes, Original packing or Neutral packing with wooden box or carton.
Q4: How about the lead time?
A: (1) ln stock: 1-7 days.Always in 72 hours.
(2) Out of stock: lt's according to your quantity, and we have cooperated with factory. We will let you know when we quote.
Q5: What's the shipping way you can offer?
A: (1) Big order: By sea or by air.(It can reduce the costs).
(2) Small order: DHL,TNT,UPS,FEDEX,EMS,ARAMEX.
Q6: What's the terms of the transaction?
A: EXW,FCA,FAS,FOB, C&F,CIF,CPT,CIP,DAF,DES,DDP.
Q7: Do you accept small order?
A: Yes, small order can accept.
Q8: What's brand you can offer in your company?
A: (1)OEM,100% GENUINE PARTS, COPY(Made in China).
(2)GENUINE PARTS.
Thank you for attention!
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