Sierra 18-7884 Diesel Oil Filter – Universal & Volvo Penta Marine Diesel
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Sierra 18-7884 Diesel Oil Filter – Universal & Volvo Penta Marine Diesel
Part Number: 18-7884 | SKU: 47-7884
The Sierra 18-7884 is a marine diesel spin-on oil filter for selected Universal and Volvo Penta diesel engines. It uses a 3/4–16 thread, high-efficiency filter media, an anti-drain-back valve, and a heavy-wall steel canister with epoxy corrosion protection. The anti-drain-back valve retains oil at the filter during shutdown, helping ensure immediate oil pressure on the next startup and reducing wear during cold starts on diesel-powered vessels.
Key Specifications
- Thread: 3/4‑16
- Filter type: Spin-on diesel oil filter
- Anti-drain-back valve: Yes
- Canister: Heavy-wall epoxy-coated steel
- Filter media: High-efficiency, meets or exceeds OEM specification
- Marine-duty construction for saltwater and freshwater environments
Compatible Applications
- Universal diesel marine engines specifying filter 299381
- Volvo Penta diesel marine engines specifying filter 834337 or 22057107
- Other marine diesel applications cross-referencing Mallory 9-57911, Wix 51348, Fram PH3614, or Fram PH7575
Fitment Note: Match by OEM part number rather than appearance. Confirm your engine model and the existing filter’s part number before ordering. The 3/4‑16 thread and anti-drain-back valve are useful technical identifiers.
Service Interval
Replace at every scheduled engine oil service. Follow the engine manufacturer’s recommended interval for your specific diesel engine — refer to your engine service manual for guidance.
Installation Notes
- Remove the old filter and confirm the old gasket has come away with it — a retained gasket will cause an oil leak
- Clean the filter mounting surface
- Lightly coat the new filter gasket with fresh engine oil before threading it on
- Tighten by hand plus ¾ turn, or per engine manufacturer specification — do not over-tighten
- Run the engine and inspect for leaks before returning to service
OEM & Cross-Reference Part Numbers
- Sierra: 18-7884
- Universal: 299381
- Valeo: 299381
- Volvo Penta: 834337, 22057107
- Mallory: 9-57911
- Wix: 51348
- Fram: PH3614, PH7575
Related Products
- Sierra 79101 Diesel Oil Filter — alternate Sierra marine diesel filter
- Sierra 18-0036 Diesel Bypass Oil Filter – Volvo Penta
- Sierra 18-0035 Diesel Full-Flow Oil Filter – Volvo Penta
- Sierra 47-237800 Oil Filter – Westerbeke Marine Diesel Engine
- Sierra Oil Drain Kit – 1/2"-20 Thread, 42" Length (47-7891)
Parts Desk Insights
Best Use Case: Routine oil and filter changes on Universal and Volvo Penta diesel-powered vessels. The anti-drain-back valve makes this a particularly good choice for diesel-powered boats that sit between uses — it helps ensure oil pressure is available immediately on startup, protecting bearings and other lubricated components during the first seconds of engine operation.
Common Issues: Fitment confusion is the most common issue with this filter — several 3/4–16 diesel filters look very similar but serve different engines. Always confirm by matching Universal 299381 or Volvo Penta 834337 / 22057107 against what’s currently on the engine. Also remind customers to verify the old gasket comes off with the old filter before installing the new one — a double gasket on the mount is a common cause of post-service oil leaks.
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.