Mercruiser 4-Stroke Synthetic Oil 1L - OEM Part 8M0078641
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Genuine Mercruiser OEM 4-stroke synthetic engine oil engineered for superior protection and performance in marine applications. This premium synthetic formula delivers exceptional lubrication, thermal stability, and engine protection in demanding saltwater and freshwater environments.
Key Features:
- Genuine OEM Mercruiser synthetic oil
- Advanced synthetic formula for superior engine protection
- Excellent thermal and oxidation stability
- Enhanced wear protection for extended engine life
- 1-liter bottle, sold in case of 6
- Formulated specifically for marine 4-stroke engines
Applications: Designed for Mercruiser 4-stroke marine engines. Consult your engine manual for recommended oil specifications and change intervals.
Quality Assurance: Manufactured to Mercruiser's exacting OEM specifications to ensure optimal performance, protection, and reliability in marine conditions.
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.