Service parts - All offers!

The Yamaha gearcase oil plug M8 is a genuine drain and fill plug for the gearcase of many Yamaha outboards.

The plug is used as a drain or fill plug when changing the gearcase oil, depending on the engine and gearcase. The thread is M8 x 1.25 and the slotted head takes a flat screwdriver. The gasket is sold separately and should be checked or replaced at every oil change.

Part numbers and references:

• Yamaha OEM number: 903400800200, 9034008M0400
• Other Yamaha references: 90340-08014-00, 90340-08125-00, 90340-08M04-00
• Aftermarket numbers: Sierra Marine 18-2371, Mallory Marine 9-72653
• Mercury reference: 22-81924M

Please check fitment against your engine model and model year before ordering. Genuine Yamaha part.

NOTE! This is a customer return product and may show signs of use. The product is not eligible for exchange or return.

Fuel filter Volvo Penta

Fits the following Volvo Penta engines:

D4 series

• All D4 engines in the power classes 145–320 hp

• Includes A, D and I versions (Aquamatic, Duoprop, Inboard)

• Also IPS and later G generations

D6 series

• All D6 engines in the power classes 280–480 hp

• Includes A, D and I versions

• WJ (WaterJet) versions included

• Suitable for all common generations and updates

Summary:

If you want, I can still:

• make a one-line ecommerce summary

• add a note about checking the engine serial number

• or edit the text into OEM-style service manual format

Motul Tekma Supra 15W-40 LS is a durable mineral-based engine oil developed for modern, heavy-duty diesel engines. Perfect for marine applications where reliability, clean running and long service life are essential.

The formula is adapted for diesel engines meeting Euro II–VI emission standards and is compatible with EGR systems, SCR/AdBlue systems and particulate filters (DPF). Tekma Supra 15W-40 LS is a "Low SAPS" oil (low sulphated ash, phosphorus and sulphur) which helps protect engine after-treatment systems and maintain optimal emission efficiency.

Also suitable for heavy-duty applications such as buses, trucks and construction machinery where the same requirements apply in terms of high stability, wear resistance and oxidation protection. The oil's durable properties make it particularly suitable for long-term loading in marine environments.

* Developed for heavily loaded marine diesel engines
* Low SAPS emission and compatible with modern exhaust gas cleaning systems
* Prevents wear, soot and oil breakdown
* Can be mixed with other mineral and synthetic oils
* Forms a stable lubricating film even under severe conditions and fluctuating temperatures

Star Tron Stabilizer+ is a fuel stabilizer that utilizes advanced enzyme technology to protect gasoline engines during extended periods of inactivity. When added to fuel prior to winter storage or other long-term storage, Stabilizer+ protects the fuel from corrosion and degradation.

Effective stabilization: Keeps fuel fresh for up to two years and prevents the formation of gum and other deposits that can clog carburetors and fuel injectors.
Corrosion protection: Contains corrosion inhibitors that protect internal parts from rust and corrosion.
Moisture Removal: Breaks water in the fuel into microscopic droplets and allows for safe removal during engine operation, preventing moisture buildup.
Versatility: Suitable for all gasoline engines, such as boats, motorcycles and lawnmowers.
Contents: 250ml
Instructions:
Dosage: One 250 ml bottle is enough for 160 liters of gasoline.
To use: Remove cap and pour directly into fuel tank before storage.
Circulation: Start the engine and let it run for a few minutes to ensure that the treated fuel circulates through the system.

Star Tron Diesel Stabilizer is an advanced fuel additive that uses unique enzyme technology to improve the performance and reliability of diesel engines.

• Improves fuel efficiency: Cleans the fuel system by removing deposits, leading to more complete combustion and improved fuel efficiency.
• Prevents microbial growth: Breaks down water in fuel and prevents the growth of bacteria and algae that can clog filters and cause corrosion.
• Stabilizes fuel: Keeps diesel fresh for up to two years, preventing the formation of gum and other deposits that can clog the fuel system.
• Reduces emissions: Promotes cleaner combustion, which reduces soot emissions and other harmful emissions.
• Contains: 500 ml

Instructions:

• Dosage recommendation: One 500 ml bottle is enough to treat up to 2000 liters of diesel.
• Application: Add Star Tron to the diesel tank before filling to achieve optimal mixing.
• Maintenance: Use regularly with every refueling to keep the fuel system clean and maintain performance.

Star Tron Gasoline Stabilizer is an advanced enzyme additive for gasoline engines, specifically designed to address the most common problems associated with ethanol-based fuels. Using plant-derived enzymes, it effectively addresses water-related issues and improves engine performance.

Prevents ethanol-based problems: Prevents corrosion and the growth of microorganisms that can be caused by water in the fuel.
Effective water management: Removes water from the fuel system, preventing damage and improving engine reliability.
Improved combustion: Breaks down large fuel molecules into nano-size particles, allowing for complete combustion.
Cleans exhaust gases: Removes soot deposits and helps reduce emissions.
Stabilizes fuel: Keeps gasoline fresh for up to two years, preventing breakdown and stratification.
Improves fuel economy: Increases engine power and reduces fuel consumption.
Cleans dirt: Soaks dirt and deposits from the fuel tank.

Instructions:
Dosage recommendation: Add 25 ml per 100 liters of gasoline. For winter storage, a double dose is recommended before refueling. A 250 ml bottle is sufficient to treat up to 500 liters of gasoline.
Usage: Pour Star Tron before filling the fuel to achieve an optimal mixture.
Efficacy: Leave the product on for 48 hours to achieve full effectiveness.

Bio-Protect is used for effective control of existing diesel bacteria or for preventive purposes to prevent the growth of bacteria, mold and algae in tanks and fuel systems. Sufficient for 1250 liters. Bottle 250 ml

Bio-Protect is used for effective control of existing diesel bacteria or for preventive purposes to avoid the growth of bacteria, mold and algae in tanks and fuel systems. Sufficient for 500 liters. Bottle 100 ml

Body anode

Zinc anode for protecting metal parts of a boat from corrosion.

Operation and installation

• Installed completely below the water surface

• The anode should always be in a horizontal position

• Direct contact between the anode and the metal part to be protected is a prerequisite for operation

• The outer surface of the anode must be free

• The anode must not be painted.

Product information

• Zinc ingot for welding or drilling your own mounting holes

• Weight: 5.60 kg

• Length: 400mm

• Width: 90mm

• Thickness: 40 mm

ZWBH seals are designed for use with water lubricated shaft assemblies. This updated monoblock design performs in the same way as the well-tested ZWB seals, but with the addition of an additional lip seal (three in total) for added safety. The shaft seal has minimal friction, a 10 mm vulcanized hose piece for water pumping and is oil and grease resistant.

VETUS recommends annual lubrication with silicone grease to maintain the seal in optimal condition. The ZWBH seals are temperature resistant from -15 °C to +85 °C and are suitable for VETUS coulter tubes in bronze, steel or reinforced plastic. The set is supplied with grease and two stainless steel hose clamps.

Flexible for absorbing shocks and vibrations.
Triple lip seal keeps water out.
For 35mm axle
Height: 112mm
Length: 145mm
Width: 56mm
Shaft diameter: 35mm

Fuel filter from Suzuki for high pressure, suitable for Suzuki DF150 and DF175 engines.

Always replace the fuel filter on time and according to the manufacturer's recommendations. A clogged fuel filter can, at worst, cause engine failure in an unfavorable situation.

This is a genuine Suzuki filter with OEM number 15440-96J00.

The best fuel stabilizer on the market for marine engines. Increases operational reliability, smoother engine running, better performance and fuel consumption. Stabilizes all types of gasoline (including ethanol blends) for 12 months and keeps it usable. Protects the entire fuel system from corrosion above and below the fuel surface. Effective cleaning of the entire fuel system, including carburetor / injectors / intake valves. Removes water from fuel and prevents phase separation.
Can be used in all gasoline engines (including cars, snowmobiles, lawnmowers), miscible with all two-stroke oils, lead substitutes, etc.

Used as a preventative protection and optimization with every refueling - and as a fuel stabilizer for long-term storage. STA-BIL is recommended by over 130 leading manufacturers and has received Industry Awards including Mercury, Volvo Penta, Honda Kawasaki, John Deere, GM, and more. Exceeds all manufacturers' requirements as a fuel stabilizer.

The best fuel stabilizer on the market for marine engines. Increases operational reliability, smoother engine running, better performance and fuel consumption. Stabilizes all types of gasoline (including ethanol blends) for 12 months and keeps it usable. Protects the entire fuel system from corrosion above and below the fuel surface. Effective cleaning of the entire fuel system, including carburetor / injectors / intake valves. Removes water from fuel and prevents phase separation.
Can be used in all gasoline engines (including cars, snowmobiles, lawnmowers), miscible with all two-stroke oils, lead substitutes, etc.

Used as a preventative protection and optimization with every refueling - and as a fuel stabilizer for long-term storage. STA-BIL is recommended by over 130 leading manufacturers and has received Industry Awards including Mercury, Volvo Penta, Honda Kawasaki, John Deere, GM, and more. Exceeds all manufacturers' requirements as a fuel stabilizer.

Diesel stabilizer, removes water, prevents microbes, effective fuel and engine cleaning.

The best diesel stabilizer on the market. Removes water from diesel fuel and prevents the growth of microbes such as bacteria, algae and fungi. Cleans and lubricates the entire fuel system, including the tank, fuel pump, injectors, etc.
Protects diesel fuel from thermal degradation and oxidation, stabilizes all types of diesel, including biodiesel for 12 months. Protects against corrosion throughout the fuel system and prevents the formation of deposits, gels and sludge.

Provides improved reliability, smoother engine running, better performance and lower fuel consumption. Can be used in all diesel engines, all types of diesel fuel, including bioethanol, biodiesel, etc.

Used as a preventative protection and optimization with every refueling and as a diesel stabilizer for long-term storage. STA-BIL is recommended by over 130 leading manufacturers and has received Industry Awards including:
Mercury, Volvo Penta, Honda Kawasaki, John Deere, GM, and many others. Exceeds all manufacturers' requirements for diesel stabilizers.

Diesel stabilizer, removes water, prevents microbes, effective fuel and engine cleaning.

The best diesel stabilizer on the market. Removes water from diesel fuel and prevents the growth of microbes such as bacteria, algae and fungi. Cleans and lubricates the entire fuel system, including the tank, fuel pump, injectors, etc.
Protects diesel fuel from thermal degradation and oxidation, stabilizes all types of diesel, including biodiesel for 12 months. Protects against corrosion throughout the fuel system and prevents the formation of deposits, gels and sludge.

Provides improved reliability, smoother engine running, better performance and lower fuel consumption. Can be used in all diesel engines, all types of diesel fuel, including bioethanol, biodiesel, etc.

Used as a preventative protection and optimization with every refueling and as a diesel stabilizer for long-term storage. STA-BIL is recommended by over 130 leading manufacturers and has received Industry Awards including:
From Mercury, Volvo Penta, Honda Kawasaki, John Deere, GM, and many others.
Exceeds all manufacturers' requirements for diesel stabilizers.

STA-BIL® is the world's most recommended and trusted fuel stabilizer. STA-BIL® has been independently tested and proven to be the best by far and is recommended by over 130 major manufacturers including Suzuki, Kawasaki, Triumph Motorcycles, Ski-Doo, Polaris, Bombardier, Volvo Penta, Ford, Holley Carburetor, Bombardier, Briggs & Stratton and many more.

ALWAYS add STA-BIL® to your fuel when storing your boat, car, motorcycle, caravan, etc. to keep the fuel fresh and the engine starting without problems after storage!
STA-BIL® Storage / STA-BIL® Fuel Stabilizer
- keeps gasoline fresh to ensure trouble-free engine starting after storage
- removes water, prevents corrosion and cleans the carburetor/sprayer
- protects the engine from deposits, slime and films
- extends engine life
- eliminates the need to drain the fuel tank and fuel system during storage
- suitable for all 2-stroke and 4-stroke petrol engines
Dosage for storage: Mix 30 ml STA-BIL® Storage with 10 liters of gasoline for 12 months of storage.
Dosage for daily use: Mix 30 ml of STA-BIL® Storage with 20 liters of gasoline to clean and optimize your fuel system when refueling.
It is perfectly safe to add more STA-BIL®; the only effect is to extend the shelf life of the gasoline.
STA-BIL® Storage 10 ounces, 296 ml, is enough for approximately 100 liters of gasoline.

Fuel stabilizer Quickare NR1

Quicksilver's original Quickare Fuel Treatment NR1 fuel stabilizer, recommended by Mercury and MerCruiser. This green bottle is Step 1 in Quicksilver's line of fuel treatment products and is intended to be used as an additive with every fuel fill .

Benefits

• Prevents corrosion

• Removes deposits and cleans the fuel system

• Improves engine performance

• Stabilizes gasoline

• Suitable for all petrol engines

• Original OEM quality

Usage and compatibility

• Suitable for all gasoline grades

• Protects rubber parts from the harmful effects of modern ethanol-containing gasoline

• Prevents the formation of moisture and corrosion

• Gentle on carburetors, injectors, fuel lines, tanks, spark plugs and valves

• Does not affect catalytic converters

• Suitable for both 2-stroke and 4-stroke engines regardless of the injection system

Dosage

• One bottle is enough for up to 454 liters of gasoline

• The exact dosage is indicated on the bottle label.

Product information

• Volume: 355 ml