Sierra 79111 4-Cycle Outboard Oil Filter
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sierra 79111 4-Cycle Outboard Oil Filter
Keep your 4-cycle outboard running clean and protected with the Sierra 79111 Oil Filter — a direct-fit replacement engineered to meet or exceed OEM filtration standards. Designed for compatible 4-stroke outboard engines, this filter traps contaminants, metal particles, and debris before they can circulate through your engine's lubrication system, helping protect bearings, pistons, and other critical internal components season after season.
Key Features
- OEM-quality filtration for 4-stroke outboard engines
- High-efficiency filter media traps contaminants and fine metal particles
- Protects engine bearings, pistons, and internal components
- Durable construction suited for freshwater and saltwater environments
- Direct-fit replacement — no modifications required
- Meets or exceeds original equipment specifications
Parts Desk Insights
Best Use Case: Ideal for routine oil change service on compatible 4-stroke outboard engines. Replace at every oil change interval as specified by your engine manufacturer — typically every 100 hours or annually, whichever comes first. Pair with the correct viscosity 4-cycle outboard engine oil for your operating conditions. Always verify fitment using your engine's model and serial number before ordering.
Related Filters in This Series: Also available in the Sierra 4-cycle outboard oil filter lineup: Sierra 7896, Sierra 7901, Sierra 7902, Sierra 79062, Sierra 7913, Sierra 7914, Sierra 7916, Sierra 7918, and Sierra 8700. Browse the full Oil Filters collection to find the correct filter for your engine.
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.