Mercury Marine — Oil Filter, 8–30 HP FourStroke — 8M0162831
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Mercury Oil Filter 8M0162831 | 8–30 HP FourStroke
The Mercury 8M0162831 is a genuine OEM spin-on engine oil filter for select Mercury and Mariner 8–30 HP FourStroke outboards. Its M-pleated filter media captures contaminants from the engine oil, while an anti-drain-back valve helps maintain lubrication during startup. This is an outboard oil filter, not a MerCruiser sterndrive/inboard filter.
Compatible Applications
- 8 / 9.9 HP — 323cc
- 15 / 20 HP carbureted
- 15 / 20 HP EFI — serial 0R833820 and up
- 25 / 30 HP EFI — 2006 and newer
Confirm your engine's horsepower, model year, and serial number before ordering. Mercury uses several physically similar oil filters across its FourStroke range, and they are not interchangeable solely by appearance.
Part Details
- Part number: 8M0162831
- Full service number: 35-8M0162831
- Brand: Mercury Marine
- Official product type: FourStroke engine oil filter
- Design: Spin-on canister with M-pleated media and anti-drain-back valve
- GTIN: 678633122828
Alternate / Superseded Part Numbers
- 8M0162831 — current Mercury-branded filter
- 35-8M0162831 — full service number
- 822626K03 — superseded to 8M0162831
- 822626T1 — superseded to 8M0162831
- 851847A02 — earlier catalog number superseded to 8M0162831
- 8M0162832 — equivalent Quicksilver-branded filter
Service Interval
Replace according to your engine's scheduled maintenance interval. The equivalent Quicksilver filter is specified for replacement during winterization or at approximately 100 engine hours in season. Replace sooner if the filter is damaged, leaking, or contaminated.
Installation Notes
Allow the engine to cool before service. Remove the old filter, clean the sealing surface, lightly lubricate the new filter gasket with clean engine oil, and install according to Mercury service instructions. Check for leaks after startup.
Technical FAQ
Is this the same as the 822626K03, 822626T1, or 851847A02? Yes, all three are earlier catalog numbers superseded by 8M0162831.
Can I use the Quicksilver 8M0162832 instead? Yes, it's the equivalent Quicksilver-branded filter, available here.
Is this a MerCruiser filter? No. If you are shopping for a MerCruiser sterndrive or inboard oil filter, this is not the correct part; 8M0162831 is specifically for Mercury and Mariner FourStroke outboards.
Parts Desk Insights
Best use case: This filter is best suited to routine oil changes on Mercury and Mariner 8–30 HP FourStroke outboards, where it protects the engine by capturing contaminants and reducing dry starts.
Common mistake: The most common mistake is assuming this is a MerCruiser filter because it shows up in Mercury-MerCruiser parts listings. Matching by outboard horsepower and serial number, not just the parts catalog it appears in, avoids ordering the wrong filter.
Sizing and fitment: If you are servicing a 15/20 HP EFI or 25/30 HP EFI outboard, confirm your serial number and model year first, since production range affects which filter is correct.
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.