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MerCruiser I-O and Inboard Oil

MerCruiser I-O and Inboard Oil

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • OEM Quicksilver 4-Stroke 25W-40 Synthetic Blend Marine Engine Oil 8M0078622 8M0078623

    OEM Quicksilver 4-Stroke 25W-40 Synthetic Blend Marine Engine Oil 8M0078622 8M0078623

    Mercury Marine / Quicksilver

    $13.99 $11.43
    Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard applications, this 4-stroke synthetic blend 25W-40 marine engine oil has been...
    Part Number:
    NW-QFS25W40
    Availability:
    In Stock - Ships same or next business day.
    Grade:
    Synthetic
    Weight:
    10W-30
    $13.99 $11.43
    Qty in Cart: 0
    Quantity:
    Price:
    $13.99 $11.43
    Earn $0.34 in PBS Store Credit
    Subtotal:
  • OEM Quicksilver 4-Stroke 25W-40 Marine Engine Oil 8M0078619 8M0078620

    OEM Quicksilver 4-Stroke 25W-40 Marine Engine Oil 8M0078619 8M0078620

    Mercury Marine / Quicksilver

    $12.99 $10.65
    Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard applications, this 4-stroke 25W-40 marine engine oil has been extensively tested to...
    Part Number:
    NW-MC4S25W40
    Availability:
    In Stock - Ships same or next business day.
    Weight:
    25W-40
    Grade:
    Standard
    $12.99 $10.65
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99 $10.65
    Earn $0.32 in PBS Store Credit
    Subtotal:
  • OEM Mercury 25W40 Synthetic Blend Oil 8M0078629 8M0078630

    OEM Mercury 25W40 Synthetic Blend Oil 8M0078629 8M0078630

    Mercury Marine / Quicksilver

    $18.27 $13.93
    Synthetic blend four stroke oil is for use in all four stroke outboard, stern drive and inboard marine engines. It is SAE 25W40 weight oil. Provides outstanding wear and corrosion protection to help extend engine life. Meets or exceeds all marine engine...
    Part Number:
    NW-MER25W40SYN
    Availability:
    Same Or Next Business Day
    Weight:
    25W-40
    Grade:
    Synthetic
    $18.27 $13.93
    Qty in Cart: 0
    Quantity:
    Price:
    $18.27 $13.93
    Earn $0.42 in PBS Store Credit
    Subtotal:
  • OEM Mercury 10W30 Marine Engine Oil 8M0078626 8M0078625

    OEM Mercury 10W30 Marine Engine Oil 8M0078626 8M0078625

    Mercury Marine / Quicksilver

    $13.52 $10.96
    Four stroke mineral base oil 8M0078626 is recommended for use in all four stroke marine engines. It is SAE 10W30 weight oil. Exceeds all marine engine manufacturer's warranty requirements and recommendations including FC-W and FC-W catalyst compatible...
    Part Number:
    NW-MER10W30
    Availability:
    Same Or Next Business Day
    Weight:
    10W-30
    Grade:
    Standard
    $13.52 $10.96
    Qty in Cart: 0
    Quantity:
    Price:
    $13.52 $10.96
    Earn $0.33 in PBS Store Credit
    Subtotal:
  • Mercury High Performance Synthetic Blend Four Stroke Oil SAE 25W50 8M0078014 8M0078013

    Mercury High Performance Synthetic Blend Four Stroke Oil SAE 25W50 8M0078014 8M0078013

    Mercury Marine / Quicksilver

    $19.33 $13.57
    Maximum wear protection in extreme racing applications.  Stays in grade under the most demanding conditions to ensure proper lubrication and performance in a wide temperature range.  Contains additives designed for high heat and high rpm to...
    Part Number:
    NW-MER25W50S
    Availability:
    Same Or Next Business Day
    Weight:
    25W-50
    Grade:
    Synthetic
    $19.33 $13.57
    Qty in Cart: 0
    Quantity:
    Price:
    $19.33 $13.57
    Earn $0.41 in PBS Store Credit
    Subtotal:
  • OEM Mercury MerCruiser Four Stroke Engine Oil 25W40 8M0078628 8m0078627

    OEM Mercury MerCruiser Four Stroke Engine Oil 25W40 8M0078628 8m0078627

    Mercury Marine / Quicksilver

    $17.01 $13.15
    Four stroke marine engine oil is recommended for use in all four stroke outboard, stern drive and inboard engines. It is SAE 25W-40 weight oil. Provides superior wear and corrosion protection to help extend engine life. Maintains peak engine performance...
    Part Number:
    NW-MER25W40
    Availability:
    Same Or Next Business Day
    Weight:
    25W-40
    Grade:
    Standard
    $17.01 $13.15
    Qty in Cart: 0
    Quantity:
    Price:
    $17.01 $13.15
    Earn $0.39 in PBS Store Credit
    Subtotal:
  • OEM Quicksilver 4-Stroke 25W-50 High Performance Synthetic Marine Engine Oil 8M0053662 8M0053664

    OEM Quicksilver 4-Stroke 25W-50 High Performance Synthetic Marine Engine Oil 8M0053662 8M0053664

    Mercury Marine / Quicksilver

    $17.46 $13.71
    High Performance four stroke marine engine oil is recommended for use in Mercury Verado and other high performance marine engines. It is SAE 25W50 weight oil. Provides outstanding wear and corrosion protection to help extend engine life. Meets or exceeds...
    Part Number:
    NW-4SYN25W50G
    Availability:
    In Stock - Ships same or next business day.
    Grade:
    Synthetic
    Weight:
    25W-50
    $17.46 $13.71
    Qty in Cart: 0
    Quantity:
    Price:
    $17.46 $13.71
    Earn $0.41 in PBS Store Credit
    Subtotal:
  • OEM Mercury 10W30 Synthetic Blend  Oil 8M0142141 8M0142151

    OEM Mercury 10W30 Synthetic Blend Oil 8M0142141 8M0142151

    Mercury Marine / Quicksilver

    $17.40 $13.38
    Synthetic Blend 4 Stroke 10W-30 Marine Oil includes all the features and benefits of the 10W-30 Mineral Plus.  Advanced corrosion inhibitors that outperform FC-W standards. Camshaft wear protection compared to other marine oils. Protection in...
    Part Number:
    NW-MERS10W30
    Availability:
    Same Or Next Business Day
    Weight:
    10W-30
    Grade:
    Synthetic
    $17.40 $13.38
    Qty in Cart: 0
    Quantity:
    Price:
    $17.40 $13.38
    Earn $0.40 in PBS Store Credit
    Subtotal:
  • Mercury Marine 10W30 Full Syn Oil Four Stroke 8M0173223 8M0173224

    Mercury Marine 10W30 Full Syn Oil Four Stroke 8M0173223 8M0173224

    Mercury Marine / Quicksilver

    $22.04 $15.48
    All-New Mercury 10W-30 Full Synthetic 4-Stroke Marine Engine Oil. Provides the best wear and corrosion protection when operating engine at maximum output and high temperatures for extended periods of time.  45% more dispersant, 24% more detergent...
    Part Number:
    NW-MERFS10W30
    Availability:
    Same Or Next Business Day
    Weight:
    10W-30
    Grade:
    Full Synthetic
    $22.04 $15.48
    Qty in Cart: 0
    Quantity:
    Price:
    $22.04 $15.48
    Earn $0.46 in PBS Store Credit
    Subtotal:
  • OEM Quicksilver 4-Stroke 10W-30 Marine Engine Oil 8M0078616 8M0078617

    OEM Quicksilver 4-Stroke 10W-30 Marine Engine Oil 8M0078616 8M0078617

    Mercury Marine / Quicksilver

    $12.99 $9.69
    Clean oil is essential in reducing friction and preventing damage to internal components, providing many years of engine life. Engineered for sterndrive and outboard applications, this 4-stroke 10W-30 marine oil has been extensively tested to ensure...
    Part Number:
    NW-MC4S10W30
    Availability:
    In Stock - Ships same or next business day.
    Weight:
    10W-30
    Grade:
    Standard
    $12.99 $9.69
    Qty in Cart: 0
    Quantity:
    Price:
    $12.99 $9.69
    Earn $0.29 in PBS Store Credit
    Subtotal:
  • OEM Quicksilver Four Stroke 10W-40 Marine Engine Oil 8M0148476 8M0148477

    OEM Quicksilver Four Stroke 10W-40 Marine Engine Oil 8M0148476 8M0148477

    Mercury Marine / Quicksilver

    $15.99 $13.54
    Four stroke mineral base oil is recommended for use in all four stroke marine outboard, stern drive and inboard engines. It is SAE 10W40 weight oil. Specifically formulated and developed to meet the needs of all 4-stroke marine engines. Advanced...
    Part Number:
    NW-MC10W40
    Availability:
    Same Or Next Business Day
    Weight:
    10W-40
    Grade:
    Standard
    $15.99 $13.54
    Qty in Cart: 0
    Quantity:
    Price:
    $15.99 $13.54
    Earn $0.41 in PBS Store Credit
    Subtotal:
  • OEM Quicksilver 10W-30 4-Stroke Synthetic Blend Marine Engine Oil  8M0142135 8M0142146

    OEM Quicksilver 10W-30 4-Stroke Synthetic Blend Marine Engine Oil 8M0142135 8M0142146

    Mercury Marine / Quicksilver

    $17.40 $13.38
    SAE 10W30 weight oil. 10W-30 Synthetic includes all the features and benefits of the 10W-30 Mineral Plus.  Industry-leading strength, viscosity retention and ultimate corrosion and wear protection. Four stroke synthetic blend oil is...
    Part Number:
    NW-MCS10W30
    Availability:
    Same Or Next Business Day
    Weight:
    10W-30
    Grade:
    Synthetic
    $17.40 $13.38
    Qty in Cart: 0
    Quantity:
    Price:
    $17.40 $13.38
    Earn $0.40 in PBS Store Credit
    Subtotal:
  • OEM Quicksilver Four Stroke 5W-30 Full Synthetic Marine Engine Oil 8M0148474 8M0148475

    OEM Quicksilver Four Stroke 5W-30 Full Synthetic Marine Engine Oil 8M0148474 8M0148475

    Mercury Marine / Quicksilver

    $17.63 $14.72
    Full synthetic four stroke oil is for use in all four stroke outboard, stern drive and inboard marine engines. It is SAE 5W30 weight oil. For use in 4-stroke outboard, stern-drive, and inboard engines. Contains additional corrosion inhibitors above...
    Part Number:
    NW-MC5W30
    Availability:
    Same Or Next Business Day
    Weight:
    5W-30
    Grade:
    Full Synthetic
    $17.63 $14.72
    Qty in Cart: 0
    Quantity:
    Price:
    $17.63 $14.72
    Earn $0.44 in PBS Store Credit
    Subtotal:
  • Total: items /

Adding your products to cart

PowerBoatSupply.com carries MerCruiser oil for I-O or sterndrive boats, as well as oil for inboard motors. Like engine bearing grease, clean oil will help keep your engine running like new.

Changing the oil in your boat’s engine is routine maintenance that must be performed regularly to ensure everything runs as it should. At PowerBoatSupply.com, we’ve been repairing marine motors for decades, and we’ve seen the damage that dirty or low oil can do. By changing your oil once a year, or once every 100 hours, you can make sure increased heat and friction won’t damage important parts.

MerCruiser 3.0 Oil

Replacing your boat engine oil is a fairly simple job, thanks to PowerBoatSupply.com’s MerCruiser oil change systems. Choose the right MerCruiser 3.0 oil type and use one of these helpful kits to drain out the old oil and replace it with new oil. Whenever you replace your oil, it’s smart to check the oil filter, too. Oil filters need to be mostly clean in order to let lubricant flow properly and to keep oil clean. Check out our large selection of MerCruiser oil and filters and find the right oil filter for your model.

MerCruiser 4.3 Oil

PowerBoatSupply.com carries MerCruiser oil for 4.3L engines in quart size bottles and gallon jugs. If you’re just topping off your boat’s oil well, a quart will do. If you want to entirely change your oil, you’ll need much more. Don’t let excess friction break down your engine’s moving parts. Extend the life of your engine with clean, high-quality oil. Maintenance may seem like a pain, but it’s nothing compared to having to rebuild an engine.

MerCruiser I-O and Inboard Oil

PowerBoatSupply.com is America’s trusted supplier of MerCruiser engine parts. We ship to the entire U.S., and we guarantee that your order will be shipped from the warehouse nearest you within 24 hours of it being placed. Whether you run a boat repair shop or are just working on your own boat, we have the parts and accessories you need to get the job done right. If you have any questions, contact our staff today.