Sierra 18-8870 4-Cycle Outboard Oil Filter – Suzuki F9.9 & F15
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Sierra 18-8870 4-Cycle Outboard Oil Filter – Suzuki F9.9 & F15
A marine-grade spin-on oil filter built as a direct replacement for Suzuki OEM filter 16510-45H10. The 18-8870 features a heavy-wall steel canister with a corrosion-resistant epoxy coating and high-efficiency filtration media — designed to hold up in the saltwater and freshwater marine environment over a full service interval.
Part Details
- Part Number: 18-8870
- SKU: 47-8870
- Brand: Sierra
- Type: Spin-on 4-cycle outboard oil filter
- Canister: Heavy-wall steel, epoxy-coated for corrosion resistance
- Filtration media: High-efficiency
- UPC: 808282339371
- Condition: New
Compatible Applications
- Suzuki F9.9 Type T / TH FourStroke – serial number 110001 and newer
- Suzuki F15 FourStroke – serial number 110001 and newer
Broader cross-reference data also associates the 18-8870 with selected Suzuki DF-series and compatible Johnson/Evinrude 4-stroke applications that share the Suzuki 16510-45H10 filter. Always confirm engine model, serial number, and existing OEM filter number before ordering — the safest fitment check is matching Suzuki part number 16510-45H10.
Cross-Reference Part Numbers
- Sierra: 18-8870 / 47-8870
- Suzuki OEM: 16510-45H10
Service Interval
Replace at every scheduled oil change per Suzuki's maintenance program — typically every 100 hours or once per season, whichever comes first. Refer to your engine's owner's manual for the exact interval.
Installation Notes
- Remove the old filter and confirm its sealing gasket comes away with it — a stuck gasket causes an immediate oil leak at startup
- Clean the filter mounting surface thoroughly
- Lightly lubricate the new filter's gasket with clean engine oil before installing
- Install per Suzuki's service procedure — typically hand-tight plus 3/4 turn
- Run the engine and inspect carefully for leaks before returning to service
Related Products
- Sierra 18-7903 – Oil Filter for Suzuki DF9.9/DF15 & Johnson/Evinrude
- Sierra 18-7896 – Oil Filter for Suzuki DF-Series & Johnson/Evinrude
- Sierra 18-7897 – Oil Filter for Suzuki DF115/DF140 & Johnson/Evinrude
- Sierra 18-7915-1 – Oil Filter for Suzuki DF-Series & Johnson/Evinrude
- Sierra 10W-30 FCW 4-Stroke Outboard Oil – 1 Qt
- Sierra 10W-30 FCW 4-Stroke Outboard Oil – 1 Gal
Parts Desk Insights
Quickest fitment check: If your Suzuki uses OEM filter 16510-45H10, the Sierra 18-8870 is a confirmed direct replacement. Several small Suzuki 4-stroke filters look very similar externally — matching the OEM part number and engine serial range is the safest way to confirm you have the right filter.
Most common install mistake: Leaving the old sealing gasket stuck to the engine block. Always inspect the mounting surface before threading on the new filter — a double-stacked gasket will cause an oil leak immediately on startup.
Not sure it’s the right filter? Check the Sierra 18-7903 for Suzuki DF9.9/DF15 applications, or the Sierra 18-7896 and 18-7897 for larger DF-series engines.
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.