This OEM Mercury Quicksilver High-Performance Gear Lube (2.5 Gallon) is engineered for high-load, high-performance marine gearcases, delivering unmatched protection for Mercury, Mariner, and MerCruiser applications.
Formulated to withstand extreme pressure, high-speed operation, and saltwater exposure, it prevents metal-to-metal contact, reduces friction, and protects against corrosion, foaming, and water intrusion.
This is Mercury’s official factory lubricant for Bravo, Racing, and Sport Master lower units, ensuring maximum performance and longevity.
Replaces OEM part number 858065Q01 and fits all units previously serviced with 802856Q1 or 8M0222074.
Product Features
- Manufacturer: Mercury Marine (OEM)
- Application: Mercury, Mariner, and MerCruiser lower units
- Type: Quicksilver High-Performance Gear Lube
- Size: 2.5 Gallon (9.46 Liters)
- Viscosity Grade: SAE 90 Marine Gear Oil
- OEM Part #: 858065Q01
- Cross Reference #: 508307, 508308, 766212, 778750, 778751, 778756, 778879, 779758, 8M0061426, 8M0219577, 8M0222071, 8M0222073, 8M0222074, 802856A1, 802856Q1, 816026A2, 858065K01, 858065QB1, 858065QC1, 858065Q01, 883668A1
- Performance: Anti-foam, anti-rust, anti-corrosion, and extreme pressure protection
- Compatibility: All high-performance Mercury, Mariner, Bravo, and Racing lower units
- Condition: 100% brand-new genuine Mercury OEM lubricant
- Warranty: Covered under Mercury Marine’s limited parts warranty
Additional Information
Note: Designed for maximum load-bearing and heat-resistance in high-output engines.
Recommended for all Mercury Racing and Bravo sterndrives and Sport Master lower units.
Do not mix with other non-Mercury gear lubricants for optimal protection and warranty compliance.
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 or gearcase model number to verify the correct gear lube before ordering.
