Seachoice 50-21019 Full-Flow Oil Filter – 20 Micron | Suzuki & Johnson/Evinrude 4-Stroke
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Seachoice 50-21019 Full-Flow Oil Filter – 20 Micron
Part Number: 50-21019 | SKU: 50-21019 | UPC: 719249210193
The Seachoice 50-21019 is a 20-micron full-flow spin-on oil filter for selected Suzuki and Johnson/Evinrude 4-stroke outboard engines. It crosses directly to Sierra 18-7897, Suzuki 16510-82703, and Johnson/Evinrude OEM filter numbers. Built with high-efficiency cellulose filter media, an epoxy-coated corrosion-resistant canister, reinforced body construction, heavy-duty end-cap seals, and an anti-drain-back valve, it meets or exceeds original equipment filtration requirements.
Key Specifications
- Filtration: 20 micron
- Filter type: Full-flow spin-on
- Filter media: High-efficiency cellulose
- Anti-drain-back valve: Yes
- Canister: Epoxy-coated steel for corrosion resistance
- Body: Reinforced construction
- End-cap seals: Heavy-duty
- Manufactured in an ISO/TS 16949 certified facility
Compatible Applications
- Suzuki DF115 4-stroke outboards, approximately 2002–2012 (verify by serial number)
- Suzuki DF140 4-stroke outboards, approximately 2002–2012 (verify by serial number)
- Johnson/Evinrude 90 HP 4-stroke outboards, selected models 2003–2006
- Johnson/Evinrude 115 HP 4-stroke outboards, selected models 2003–2006
- Johnson/Evinrude 140 HP 4-stroke EFI outboards, selected models 2003–2006
- Other Suzuki and Johnson/Evinrude 4-stroke applications specifying Suzuki 16510-82703 or Sierra 18-7897
Fitment Note: Suzuki and Johnson/Evinrude 4-stroke engines use multiple oil filter configurations across different model families and production years. Always confirm your engine model, horsepower, model year, and existing filter part number before ordering. Matching a cross-reference number is more reliable than ordering by appearance or physical size.
Service Interval
Replace at every scheduled engine oil service. Follow the outboard manufacturer’s recommended interval for your specific engine model — typically every 100 hours or once per season, whichever comes first.
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
Cross-Reference Part Numbers
- Seachoice: 50-21019 / 21019
- Sierra: 18-7897
- Johnson / Evinrude: 5033919, 778887
- Suzuki: 16510-82703
- EMP: 35-57815
- Mallory: 9-57815
Related Products
- Sierra 7897 4-Cycle Outboard Oil Filter — Sierra OEM-equivalent filter this unit replaces
- Seachoice 50-21004 Full-Flow Oil Filter – 20 Micron — Mercury & Mariner 4-stroke outboard filter
- Seachoice 50-21011 Full-Flow Oil Filter – 20 Micron — Mercury FourStroke & Yamaha 69J-series filter
- Seachoice 50-21018 Full-Flow Oil Filter – 20 Micron — Yamaha 3FV/3FC-series 4-stroke outboard filter
- Seachoice 50-21001 Full-Flow Oil Filter – 20 Micron — MerCruiser, Volvo Penta & OMC sterndrive filter
Parts Desk Insights
Best Use Case: Routine oil and filter changes on Suzuki DF115 and DF140 4-stroke outboards — one of the most commonly serviced Suzuki outboard families — and on Johnson/Evinrude 4-stroke EFI outboards in the 90–140 HP range. Suzuki DF-series engines are widely used on aluminum fishing boats and mid-size runabouts, making this a practical service item for shops and customers on those platforms.
Common Issues: Suzuki and Johnson/Evinrude both use multiple filter configurations across their 4-stroke lineups, and filters often look similar. The most reliable fitment confirmation is matching Suzuki 16510-82703, Sierra 18-7897, or Johnson/Evinrude 5033919 / 778887 against what is currently on the engine. As with all spin-on filters, remind customers to confirm the old gasket came off with the old filter — leaving the old gasket on the mount is a common cause of oil leaks after service.
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.