This OEM Mercury 4-Stroke 10W-30 Marine Engine Oil (1 Gallon) is the official factory-recommended oil for Mercury and Mariner 4-Stroke outboards.
Formulated to meet NMMA FC-W® certification standards, it provides superior anti-wear protection, oxidation stability, and corrosion resistance in harsh marine environments.
The specialized marine-grade additives ensure consistent viscosity retention, clean operation, and engine longevity — even under heavy load and high-RPM conditions.
Replaces OEM part number 8M0078626 and is suitable for all Mercury 4-Stroke engines requiring 10W-30 viscosity.
Product Features
- Manufacturer: Mercury Marine (OEM)
- Application: Mercury & Mariner 4-Stroke outboard engines
- Type: Genuine 4-Stroke Marine Engine Oil
- Viscosity Grade: SAE 10W-30
- Certification: NMMA FC-W® Certified
- Size: 1 Gallon (3.78 Liters)
- OEM Part #: 8M0078626
- Cross Reference #: 18-9420-3, 18-94203, 8M0078617, 8M0078632, 8M0078638, 802833Q40, 802835A1, 802835A30, 802835Q1, 828000A40, 828002A40, 857391A01, 857391A1, 858046KC1, 858046K01, 858046QB1, 858046QC1, 858046Q01, 883696A01, 883696A1, 9-82351
- Performance: Marine-grade formula for high-load, high-RPM operation
- Condition: 100% brand-new genuine Mercury OEM oil
- Warranty: Backed by Mercury Marine’s limited parts warranty
Additional Information
Note: Designed specifically for Mercury 4-Stroke outboard motors, including portable, midrange, and large V6 models.
Provides superior protection against rust and corrosion while maintaining viscosity in all temperature ranges.
Ideal for freshwater and saltwater environments where reliability and performance are critical.
Shipping Information
SHIPPING: Additional shipping fees to Alaska, Hawaii, U.S. Territories, or international destinations will be calculated after checkout.
You will receive an email and a PayPal money request for the additional shipping charges at the email address provided.
(Some items are excluded from international shipping.)
Customer Support
For questions or to confirm compatibility, please email customerservice@marinepartswarehouse.com .
Please include your engine model number to verify proper oil selection before ordering.
