Seachoice 50-21024 Full-Flow Oil Filter – Ford Long Style, 20 Micron
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Seachoice 50-21024 Full-Flow Marine Oil Filter
Part Number: 50-21024 | Brand: Seachoice | UPC: 719249210247
A 20-micron full-flow spin-on oil filter built for inboard and sterndrive marine engines using a Ford long-style filter configuration. High-efficiency cellulose media traps contaminants before they circulate through bearings and lubricated engine components, while the epoxy-coated canister holds up in salt air and bilge environments.
Features
- 20-micron full-flow filtration — high-efficiency cellulose media
- Ford long-style spin-on configuration
- Anti-drain-back valve maintains oil pressure between starts
- Epoxy-coated canister for corrosion resistance
- Reinforced canister construction and heavy-duty end-cap seals
- Manufactured in an ISO/TS 16949 certified facility
Compatible Applications
- Mercury / MerCruiser – replaces 35-802886Q
- Crusader – replaces 9002514
- OMC – replaces 502900
- Pleasurecraft – replaces R077001
- Chrysler – replaces 1851658
- Chris-Craft – replaces 16.81-06536
- Yamaha – replaces YSC-10231-20-0C
Confirm the existing filter number and engine application before ordering. This is the Ford long-style canister — similar marine engines may use shorter GM-style canisters with different thread and gasket configurations.
Service Interval
Replace at the engine manufacturer's recommended oil-change interval. Regular filter replacement prevents contaminants from circulating through bearings and other lubricated engine components.
Installation Notes
Remove the old filter and verify its sealing gasket comes away with it. Clean the mounting surface, lightly coat the replacement gasket with fresh engine oil, install hand-tight plus per the engine manufacturer's procedure, and inspect for leakage after first startup.
Cross-Reference Part Numbers
- Seachoice: 50-21024 / 21024
- Sierra: 18-7875
- Mercury / MerCruiser: 35-802886Q
- Crusader: 9002514
- OMC: 502900
- Pleasurecraft: R077001
- Chrysler: 1851658
- Chris-Craft: 16.81-06536
- Yamaha: YSC-10231-20-0C
- Fram: PH8A
- WIX: 51515
Parts Desk Insights
This filter is most commonly needed during routine inboard or sterndrive oil changes on older Ford-based marine engines. The quickest way to identify it is the Fram PH8A / WIX 51515 cross-reference family — both are interchangeable in this Ford long-style application. The most common customer error is ordering the GM-style short filter for MerCruiser applications; always confirm the existing filter canister length before ordering.
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.