This OEM Mercury 2-Stroke Premium Plus TC-W3 Marine Engine Oil (1 Gallon) is designed for high-performance 2-stroke outboards, including OptiMax, EFI, and carbureted engines.
Formulated with advanced detergents and anti-wear agents, Premium Plus offers exceptional lubrication, smoke reduction, and carbon control, ensuring clean combustion and extended engine life.
Certified to meet and exceed NMMA TC-W3® standards, this oil delivers superior protection in both freshwater and saltwater environments.
Replaces OEM part number 858027K01, and is the factory-recommended oil for Mercury and Mariner 2-stroke outboard motors.
Product Features
- Manufacturer: Mercury Marine (OEM)
- Application: Mercury & Mariner 2-Stroke outboards (OptiMax, EFI, and DFI systems)
- Type: Premium Plus Marine Engine Oil
- Certification: NMMA TC-W3® Certified
- Size: 1 Gallon (3.78 Liters)
- Replaces OEM #: 858027K01
- Cross Reference #: 8M0061417, 8M0230927, 801890A6, 802826A1, 802826A30, 802826E1, 802826Q1, 824402A6, 831283A6, 857386A01, 857386A1, 858013Q03, 858027E01, 858027KC1, 858027QB1, 858027QC1, 858027Q01, 858027Q51, 858031Q01, 883689A1, 8893689A01
- Performance: Clean-burning, low-smoke formulation with superior film strength
- Compatibility: Safe for oil-injected and pre-mix 2-stroke engines
- Condition: 100% brand-new genuine Mercury OEM oil
- Warranty: Backed by Mercury Marine’s limited parts warranty
Additional Information
Note: Ideal for high-output 2-stroke engines operating at high RPMs or under heavy load.
Recommended for all Mercury and Mariner outboards requiring TC-W3 certified oil.
Protects against corrosion, piston scuffing, and carbon buildup, while improving throttle response and overall performance.
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 ensure proper fitment before ordering.
