Sierra Marine Premium Marine Oil Filter — 18-7824-2
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The Sierra Marine 18-7824-2 Premium Marine Oil Filter is a short-profile spin-on oil filter designed for compatible GM-based marine inboard and sterndrive engines. Built for marine service, it features a heavy-wall steel canister, corrosion-resistant epoxy coating, anti-drainback protection, and internal bypass protection to help maintain clean oil flow in harsh engine-room and bilge environments.
This filter is commonly used on compatible 4-cylinder, inline-6, and V8 marine engine applications where the engine manufacturer's service information or existing filter cross-reference calls for Sierra 18-7824-2 or a verified equivalent.
Key Features
- Sierra Marine premium marine oil filter.
- Part number: 18-7824-2.
- Alternate format: SIE-18-7824-2.
- Filter style: short-profile spin-on oil filter.
- Thread reference: 13/16 in.-16.
- Compact canister height reference: approximately 3.17–3.5 in.
- Anti-drainback valve helps keep oil in the filter during shutdown.
- Bypass relief valve helps maintain oil flow if the filter becomes restricted.
- Heavy-wall steel canister for marine engine service.
- Epoxy-coated exterior helps resist corrosion in damp bilge conditions.
- Designed for compatible GM-based marine inboard and sterndrive engine applications.
Engine Compatibility
Common application context includes compatible GM-based marine engines where this short canister filter and cross-reference group are specified, including:
- GM-based marine inline-4 engines.
- GM-based marine inline-6 engines.
- GM-based marine V8 engines.
- MerCruiser / Mercury Marine sterndrive and inboard applications where listed.
- Volvo Penta gasoline sterndrive and inboard applications where listed.
- OMC sterndrive applications where listed.
- Crusader and Indmar applications where listed.
Use this oil filter only where the engine model, serial number, mounting thread, gasket seat, canister clearance, and OEM part number match the application.
Serial Number Fitment Notice
Confirm fitment by engine model, serial number, existing filter number, thread size, gasket diameter, and available clearance before ordering. Marine oil filters can look similar but may differ in height, thread, gasket size, bypass-valve design, and internal construction.
When in doubt, match against the filter being removed or verify through the engine manufacturer's parts lookup.
When This Part Needs Replacement
Replace the oil filter at every scheduled oil change, during seasonal service, after oil contamination, after extended storage, or whenever the canister is rusted, dented, leaking, damaged, or past the recommended service interval.
Replacement is also recommended after overheating, water-contaminated oil, major engine work, or when changing oil type.
Installation Notes
Warm the engine briefly, shut it down, and drain the oil according to the service procedure. Remove the old filter and confirm the old gasket did not remain stuck to the filter mount. Clean the sealing surface before installing the new filter.
Lightly oil the new gasket with clean engine oil, spin the filter on by hand, and tighten according to the engine or filter instructions. Do not over-tighten. Refill with the correct marine engine oil, run the engine, verify oil pressure, inspect for leaks, and recheck the oil level after shutdown.
Alternate / Cross-Reference Part Numbers
- Sierra Marine 18-7824-2 — primary part number
- SIE-18-7824-2 — alternate catalog format
- Mercury / MerCruiser 35-866340Q03 — cross-reference; verify by engine serial number
- Mercury / MerCruiser 35-802885Q — cross-reference; verify by engine serial number
- Mercury / MerCruiser 35-8M0154751 — cross-reference; verify by engine serial number
- Mercury / MerCruiser 35-866340K01 — cross-reference; verify by engine serial number
- Volvo Penta 3852030 — cross-reference; verify by engine model
- Volvo Penta 3852412 — cross-reference; verify by engine model
- Volvo Penta 835440 — cross-reference; verify by engine model
- OMC 173232 — cross-reference; verify by application
- OMC 502902 — cross-reference; verify by application
- OMC 778864 — cross-reference; verify by application
- Crusader 201104 — cross-reference; verify by application
- Indmar 50-1001 — cross-reference; verify by application
- Indmar 872023 — cross-reference; verify by application
Parts Desk Insight
This is a short-profile marine oil filter, so both fitment and clearance matter. The correct replacement must match the engine's thread, gasket seat, canister height, and bypass design. In damp marine engine rooms, the epoxy-coated canister is also important because standard automotive filters can rust quickly in bilge conditions.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.