NGK spark plug br7hs – code: 47.558.35 – Osculati

NGK BR7HS Osculati spark plug (code 47.558.35)

The NGK BR7HS spark plug offered by Osculati (supplier code 47.558.35) is a replacement designed for the maintenance and replacement of the spark plug on outboard motors and related applications. In the nautical field, the spark plug is an essential component for ignition: a correct replacement helps keep the engine running smoothly and reduces typical problems related to wear, deposits, or difficult starts.

This spark plug is indicated as standard equipment on various engine brands, making it a practical choice when you want to restore the original configuration or perform routine maintenance with a known spark plug code.

Product features and details

• Spark plug model: NGK BR7HS
• Supplier: Osculati S.r.l.
• Supplier product code: 47.558.35
• Type: ignition spark plug for spare/maintenance

For a correct choice, it is always advisable to check the spark plug code required by the engine manufacturer or the one already installed, comparing it with BR7HS. In case of doubt, it is advisable to refer to the engine manual or your trusted technician.

Applications (standard installation indicated)

According to available information, the spark plug NGK BR7HS is standardly installed on engines of the following brands:

• Mariner
• Yamaha
• Suzuki
• Mercury
• Tohatsu
• Selva
• Honda

Note: the indication refers to standard installation on some models/series; actual compatibility depends on the specific engine. Always check the spark plug code specified for your model before purchasing.

Maintenance advantages

Choosing a spark plug with the correct code and compliant with the manufacturer's instructions is an important step in engine maintenance. In particular, periodic replacement can be useful to:

• Restore ignition efficiency when the installed spark plug is worn or fouled.
• Reduce typical issues related to starting difficulties or irregular operation due to a spark plug in poor condition.
• Manage routine maintenance with a replacement identifiable by code and supplier part number.
• Quick onboard interventions: having the correct spare spark plug can simplify assistance and inspection operations.

The main advantage, in a nautical context, is the ability to intervene specifically on a wear-prone component, keeping the engine in conditions suitable for navigation and service needs.

Usage and operational notes

Replacing a spark plug requires care and good maintenance practices. Below are some general guidelines (without replacing the manufacturer's instructions):

• Check the code of the installed spark plug and compare it with NGK BR7HS before installation.
• Work on a cold engine and safely, avoiding forcing threads or components.
• Check the condition of the removed spark plug: deposits or abnormal marks may indicate the need for further engine checks.
• Reinstall correctly following the manual's instructions (torque, any adjustment required, etc.).
• Keep a spare spark plug if you use the engine continuously or in contexts where assistance is not immediate.

To ensure a correct choice, when possible it is useful to also identify the exact engine model and the year/series, as the spark plug may vary between different versions of the same brand.

FAQ – Frequently Asked Questions

What is the Osculati code for this NGK spark plug?

The Osculati supplier product code is 47.558.35.

On which brands is the NGK BR7HS indicated as standard equipment?

It is indicated as standard equipment on Mariner, Yamaha, Suzuki, Mercury, Tohatsu, Selva, and Honda. Compatibility depends, however, on the specific engine model.

Is this spark plug suitable for all outboard engines of the listed brands?

Not necessarily. The indication refers to standard installation on some models/series: it is always recommended to check the spark plug code required by the manufacturer or the one already installed.

How can I verify if the correct spark plug for my engine is the BR7HS?

Check the code shown on the spark plug currently installed or consult the engine manual. In case of doubt, contact a technician or your service center.

Is it useful to keep a spare spark plug on board?

Yes, it can be useful for maintenance or replacement interventions if necessary, especially when assistance is not immediately available.