Sierra 79321 Fuel/Water Separator Kit W/Collection Bowl
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The Sierra 79321 Fuel/Water Separator Kit helps protect marine engines by separating water from the fuel stream and allowing the collected water to be drained from the filter to support service life. This kit includes a collection bowl option for different installation requirements.
Key Features
- Fuel/water separation helps reduce water entering the engine fuel system
- Drainable design supports maintaining filter performance over time
- AquaVueâ„¢ Clear Bowls: use for outboard and above-deck installations
- Metal Bowl Collection: USCG regulations require flame-resistant metal bowls below deck
Product Compatibility
- Marine outboard and inboard fuel systems requiring a fuel/water separator
- Above-deck and below-deck installations where USCG-regulated metal bowl requirements apply
Product Details
- Fuel/Water Separator Kit includes a collection bowl option
- AquaVueâ„¢ clear bowl option is intended for outboard and above deck installations
- Metal bowl collection is intended for below deck installations where USCG flame-resistant metal bowl requirements apply
- Kit model: Sierra 79321 (SKU/variant: 47-79321)
Parts Desk Insights
Best Use Case: Use this Sierra fuel/water separator kit when you want a drainable fuel/water separation setup for marine engines, with bowl selection aligned to above-deck vs. below-deck installation requirements.
Common Issues: For fuel/water separators, the most common service problems are leaving water to accumulate (which reduces separation effectiveness) and not matching the bowl type to the installation location. During service, check for correct seal/gasket condition and confirm the bowl and filter are installed per the system diagram.
Related Products & Accessories
- Browse Fuel/Water Separators - Explore additional fuel/water separator options and related filter components in the fuel/water separator category.
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.