Replacement Water Separating Fuel Filter, Long
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You have 30 days to request a return. All sale items are final sale.
Replace your marine fuel water separator element with this Sierra Replacement Water Separating Fuel Filter (Long). Designed to help protect the fuel system by separating water from the fuel before it reaches the engine.
Key Features
- Replacement Sierra fuel water separating filter element (Long)
- Helps separate water from gasoline to support cleaner fuel delivery
- Marine fuel filter style for use in fuel/water separator assemblies
Product Compatibility
- Marine gas engines and fuel systems using a fuel/water separator element
- Fuel/water separator filter housings that accept the long replacement element style (confirm your assembly and element reference before ordering)
Product Details
- SKU: 47-7845
- Product name: Replacement Water Separating Fuel Filter, Long
- Brand tag: Sierra (LNS)
- Variant weight: 463 g
- Filter type: Water separating fuel filter (fuel/water separator element style)
- Product barcode (as listed): 30999856678
Parts Desk Insights
Best Use Case: Best for routine filter element replacement to maintain water separation performance in a marine gasoline fuel/water separator setup.
Common Issues: If you have recurring “water in fuel” symptoms or poor engine performance after a change, double-check that the correct element length/style was installed for your specific separator housing, verify the element is seated correctly, and inspect related seals/O-rings in the assembly.
Related Products & Accessories
- Oils & Lubricants - Browse the Oils & Lubricants category for service consumables.
- Fuel Filters - Browse the Fuel Filters category for additional fuel/water separator elements.
- Marine Filters - Browse Marine Filters for other filter types used in engine maintenance.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.