FourStroke Outboard Maintenance
Find Your Maintenance Parts
Clear SelectionLOOKING FOR REPLACEMENT PARTS?
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NGK Spark Plug LKAR7C9 (Mercury 8M0204737)
Mercury Marine / Quicksilver
$7.99NGK Spark Plug LKAR7C9 (Mercury 8M0204737)- Part Number:
- 41-LKAR7C9
- Availability:
- In Stock - Ships same or next business day.
$7.99 -
Mercury Marine FourStroke Outboard Oil Filter 35-8M0162831
Mercury Marine / Quicksilver
$18.49 $15.49High-Quality Mercury outboard filters and Mercury FourStroke Outboard Oil work together to provide the ultimate protection for your engine. This oil filter is for the following applications: Mercury Mariner 8 HP FourStroke Outboards (BEL...- Part Number:
- 710-35-8M0162831
- Availability:
- In Stock - Ships same or next business day.
$18.49 $15.49 -
OEM Mercury 75/90/115 4-Stroke Oil Change Kit SAE 10W-30 8M0107510
Mercury Marine / Quicksilver
$94.99 $81.59For use in all 4-stroke marine engines. New formula 4-stroke oils are Mercury Engineering approved for all marine 4-stroke outboard applications. The new formula exceeds all marine industry 4-stroke oil requirements, including FC-W and...- Part Number:
- 710-8M0107510
- Availability:
- In Stock - Ships same or next business day.
- Weight:
- 10W-30
- Grade:
- Standard
- Engine:
- 75/90/115 HP FourStroke EFI
$94.99 $81.59 -
OEM Mercury 40/50/60 HP EFI Oil Change Kit SAE 25W-40 8M0081916
Mercury Marine / Quicksilver
$65.99 $61.21For use in all 4-stroke marine engines. New formula 4-stroke oils are Mercury Engineering approved for all marine 4-stroke outboard applications. The new formula exceeds all marine industry 4-stroke oil requirements, including FC-W and...- Part Number:
- 710-8M0081916
- Availability:
- In Stock - Ships same or next business day.
- Weight:
- 25W-40
- Grade:
- Standard
- Engine:
- 40/50/60 HP FourStroke EFI
$65.99 $61.21 -
OEM Mercury MerCruiser Outboard Sterndrive 32 oz GEAR LUBE PUMP 91-8M0072135
Mercury Marine / Quicksilver
$17.99 $9.59OEM Mercury GEAR LUBE PUMPFor use with 32 oz. and 1 liter gear lube bottles.This fits any outboard and stern drives.Also includes the metric adapter.- Part Number:
- 710-91-8M0072135
- Availability:
- In Stock - Ships same or next business day.
$17.99 $9.59 -
Mercury High Performance Synthetic Blend Four Stroke Oil SAE 25W50 8M0078014 8M0078013
Mercury Marine / Quicksilver
$22.99 $14.03Maximum 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
$22.99 $14.03 -
Mercury 100 Hour Maintenance Kit 40/50/60 HP FourStroke EFI 8M0090558
Mercury Marine / Quicksilver
$93.49 $67.14For use on 40 through 60HP EFI FourStrokes Kit Contains: 1 Oil Filter1 Low Pressure Fuel Filter1 High Pressure Fuel Filter1 Oil Drain Seal2 Gearcase Drain Seals1 ThermostatThermostat Gaskets- Part Number:
- 710-8M0090558
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- 40/50/60 HP EFI FourStroke
- Interval:
- 100 Hours
$93.49 $67.14 -
Flush-M Mercury Outboard Flush Quick Connect Kit 75-500HP FM-BLK
Flush-M
$75.00 $65.00Optimize Your Mercury® Outboard Engine's Lifespan with Flush-M™ Quick Flushing Solution Maintain your Mercury® outboard engine effortlessly with our innovative quick flushing system. No complex installations or tools required. Just a...- Part Number:
- NW-FLUSHM
- Availability:
- In Stock - Ships same or next business day.
$75.00 $65.00 -
OEM Quicksilver/Mercury Water Pump Kit 46-812966A12
Mercury Marine / Quicksilver
$174.99 $149.99OEM Quicksllver/Mercury Water Pump Kit 46-812966A12 Water pump repair kit 812966A12 is for Mercury and Mariner 4-stroke outboards 30 hp through 60 hp (Serial Number: 0T409000 thru 1B355222 and 1C000001 & above). The kit includes water impeller,...- Part Number:
- 710-46-812966A12
- Availability:
- In Stock - Ships same or next business day.
$174.99 $149.99 -
Mercury 100 Hour Maintenance Kit 175-300 HP V6 3.4L and V8 4.6L FourStroke 8M0149929
Mercury Marine / Quicksilver
$88.49 $74.99100 Hour 4-Stroke Outboard Service Kit is for the Mercury V6 (3.4L) and V8 (4.6L) 175hp - 300hp outboards. Kit Contains: 1 Oil Filter1 Low Pressure Fuel Filter2 Gearcase Drain Seals- Part Number:
- 710-8M0149929
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- 175–300 HP 3.4L V6 & 4.6L V8
- Interval:
- 100 Hours
$88.49 $74.99 -
OEM Mercury Marine Verado Outboard Oil Filter 35-877769K01
Mercury Marine / Quicksilver
$19.99 $16.99Mercury oil filters are constructed of the highest quality materials and made specifically for marine applications. Unique filtration system screens particles smaller than 1/1000th of an inch to keep your oil cleaner longer. High-efficiency...- Part Number:
- 710-35-877769K01
- Availability:
- In Stock - Ships same or next business day.
$19.99 $16.99 -
OEM Mercury Thermostat Housing 140 Degree L4 L6 135-300 HP Verado 892864T04 8M0174561
Mercury Marine / Quicksilver
$199.99 $171.49OEM Mercury Thermostat with housing 140 Degree L4 and L6 Verado 4 Stroke Fits: 135-300 HP Verado L4 Verado Models: 135 / 150 / 175 / 200 L6 Verado Models: 200 / 225 / 250 / 275 / 300 Please confirm fitment of MerCruiser parts with...- Part Number:
- 710-8M0174561
- Availability:
- In Stock - Ships same or next business day.
$199.99 $171.49 -
OEM Quicksilver/Mercury DFI Verado Fuel Filter Element 35-8M0122423
Mercury Marine / Quicksilver
$39.99 $34.49OEM MerCruiser Filter-Fuel Dfi &Veradqs 35-8M0122423 This under-cowl, in-line fuel filter fits many Mercury and Mariner outboards replacing contaminated filters and is mounted under the engine cowl. It also fits in specific MerCruiser fuel filter...- Part Number:
- 710-35-8M0122423
- Availability:
- In Stock - Ships same or next business day.
$39.99 $34.49 -
Mercury 300 Hour Maintenance Kit 40-60 HP FourStroke 0R106999 and above 8M0113483
Mercury Marine / Quicksilver
$274.99 $233.49300 hour EFI outboard service kit is for 40 hp 50 hp and 60 hp Mercury 4-stroke, 4-cylinder EFI outboards with standard gearcases. Kit Includes: Oil FilterFuel Filter, Low PressureFuel Filter, High PressureThermostatThermostat GasketsSpark Plugs x...- Part Number:
- 710-8M0113483
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- 40/60 HP 4 Cyl. EFI FourStroke
- Interval:
- 300 Hours
$274.99 $233.49 -
Mercury 300 Hour Maintenance Kit, V6 (3.4 L) FourStroke 8M0149930
Mercury Marine / Quicksilver
$416.49 $353.99300 Hour 4-Stroke Outboard Service Kit 8M0149930 is for Mercury V6 outboards (3.4L).- Part Number:
- 710-8M0149930
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- V6 3.4 L FourStroke
- Interval:
- 300 Hours
$416.49 $353.99 -
Mercury 300 Hour Maintenance Kit 40-60 HP FourStroke Command Thrust 1C000001 & up 8M0090559
Mercury Marine / Quicksilver
$238.49 $202.49300 hour EFI outboard service kit is for 40 hp 50 hp and 60 hp Mercury 4-stroke, 4-cylinder EFI outboard motors with BigFoot or CommandThrust (CT) gearcases only. Kit Includes: Oil FilterFuel Filter, Low PressureFuel Filter, High...- Part Number:
- 710-8M0090559
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- 40-60 HP EFI 4 Cly. FourStroke
- Interval:
- 300 Hours
$238.49 $202.49 -
OEM Mercury 15/20 HP Carb 4-Stroke Oil Change Kit SAE 25W-40 8M0081914
Mercury Marine / Quicksilver
$37.99 $30.00For use in all 4-stroke marine engines. New formula 4-stroke oils are Mercury Engineering approved for all marine 4-stroke outboard applications. The new formula exceeds all marine industry 4-stroke oil requirements, including FC-W...- Part Number:
- 710-8M0081914
- Availability:
- In Stock - Ships same or next business day.
- Weight:
- 25W-40
- Grade:
- Standard
- Engine:
- 15/20 HP FourStroke
$37.99 $30.00 -
Mercury 100 Hour Maintenance Kit 15 and 20 HP FourStroke EFI 0R833820 & above 8M0151469
Mercury Marine / Quicksilver
$66.49 $56.49100 Hour 4-Stroke EFI Outboard Service Kit for 15 hp and 20 hp Mercury 4-stroke EFI outboards. Kit Contains: 1 Oil Filter1 Low Pressure Fuel Filter1 Oil Drain Seal2 Gearcase Drain Seals- Part Number:
- 710-8M0151469
- Availability:
- In Stock - Ships same or next business day.
- Engine:
- 15/20 EFI FourStroke
- Interval:
- 100 Hours
$66.49 $56.49 -
OEM Mercury 25/30 HP EFI 4-Stroke Outboard Oil Change Kit 8M0081915
Mercury Marine / Quicksilver
$49.99 $49.60For use in all 4-stroke marine engines. New formula 4-stroke oils are Mercury Engineering approved for all marine 4-stroke outboard applications. The new formula exceeds all marine industry 4-stroke oil requirements, including FC-W and...- Part Number:
- 710-8M0081915
- Availability:
- In Stock - Ships same or next business day.
- Weight:
- 25W-40
- Grade:
- Standard
- Engine:
- 25/30 HP FourStroke EFI
$49.99 $49.60 -
OEM Quicksilver/Mercury Verado Alternator Drive Belt 57-880566Q14
Mercury Marine / Quicksilver
$36.49 $31.49OEM Quicksilver/Mercury Verado Alternator Drive Belt 57-880566Q14 Alternator belt 880566Q14 is for 135 hp through 200 hp 4-cylinder Verado outboards (serial number 1B311420 and above), 200 hp through 300 hp 6-cylinder Verado outboards (serial...- Part Number:
- 710-57-880566Q14
- Availability:
- In Stock - Ships same or next business day.
$36.49 $31.49
When it comes to keeping your Mercury FourStroke outboard motor in top shape, regular maintenance is essential. PowerBoatSupply.com offers a range of premium products specifically designed to keep these engines running smoothly, from oil and filters to spark plugs and more. These items are crafted to meet the rigorous demands of boaters and mechanics for reliable performance on the water.
Key Features at a Glance:
- OEM-Approved Products: Each item is built to meet Mercury’s standards for quality and compatibility.
- Wide Range of Maintenance Parts: Everything from oil filters and gear lube to complete maintenance kits for routine servicing.
- Ease of Use: These products are designed for easy installation, whether you’re replacing your motor's oil filter or performing a full tune-up.
- Performance Enhancements: Using authentic Mercury parts helps maintain optimal fuel efficiency, performance, and engine longevity.
From prolonging the life of your motor to preventing costly repairs, the right FourStroke outboard maintenance parts make all the difference.
What Maintenance Does a FourStroke Outboard Need?
Want to know how to do maintenance on a FourStroke outboard motor? Routine maintenance tasks include oil and filter changes, replacing spark plugs, and keeping the cooling system clean. Following the Mercury FourStroke maintenance schedule is crucial for preventing engine wear and tear, while also maximizing fuel efficiency.
For example, replacing your oil filter regularly helps remove contaminants and debris that could cause engine damage. Using the recommended Mercury outboard oil and filters guarantees your engine runs cleanly and at peak efficiency. Also, inspecting the gear lube and propeller shaft protects your motor’s drive system against corrosion and premature wear.
How Often Should I Change the Oil in a FourStroke Outboard?
According to Mercury’s maintenance schedule, oil changes should happen at least once a year or every 100 hours of operation, whichever comes first. However, in extreme conditions—such as boating in saltwater or when running at high speeds for long periods—you may need to change it more frequently.
The process involves draining the old oil, replacing the filter, and refilling with fresh oil. This is where quality products come in handy. When choosing oil filters and oils, be sure to use products that match your motor’s specifications for the best results.
Changing the oil at regular intervals will:
- Prevent engine wear
- Promote smoother performance
- Help with fuel efficiency
What FourStroke Outboard Parts Need to Be Replaced First?
Some parts of a Mercury FourStroke motor wear out faster than others and will need to be replaced sooner. Commonly, boat owners will first replace the following:
- Oil and Filters: Your motor's lifeblood, these should be replaced every 100 hours.
- Spark Plugs: Worn-out plugs can cause misfires and poor engine performance. These should be checked and replaced if necessary, especially if you notice difficulty starting the motor.
- Water Pump Impeller: If your water pump fails, your engine could overheat. Checking and replacing the impeller regularly helps prevent that.
- Gear Lube: This protects your motor’s lower unit and should be checked every season or before long outings.
Using OEM-certified parts is critical for your engine’s long-term health. Our FourStroke outboard maintenance parts meet Mercury’s exacting standards, which means you’re getting the same durability and reliability as the parts that came with your motor originally.
Choose PowerBoatSupply.com for All Your FourStroke Maintenance Needs
Finding the right tools for FourStroke outboard maintenance is easy with PowerBoatSupply.com. Whether you’re looking for outboard maintenance kits for comprehensive servicing or specialty items like Mercury outboard paint, we have the products you need to keep your engine in peak condition.
Don't wait until a minor issue becomes a major repair! Shop our wide selection of products for FourStroke outboard motors and keep your engine running smoothly for seasons to come. Looking for maintenance for other outboard motors? We have you covered with a full range of high-quality products.