Spark plug ngk b7hs-10 – code: 47.558.10 – Osculati

NGK B7HS-10 Osculati spark plug (code 47.558.10)

The NGK B7HS-10 spark plug offered by Osculati (code 47.558.10) is a spare part designed for the regular maintenance of engines, with a practical approach focused on long-term reliability. In the nautical field, the correct choice of spark plug is a detail that affects the smooth operation and ease of engine management during the season: for this reason, it is important to use a model consistent with what is specified by the manufacturer.

This spark plug is indicated as standard equipment on several engine brands, making it a reference solution when a replacement “as original” is needed or when you want to maintain the configuration provided at initial equipment.

Product features and details

The product is uniquely identified by the Osculati code 47.558.10 and the code NGK B7HS-10. This information is essential to avoid errors during purchase and to correctly compare the spare part with the one already installed on the engine.

Identification and codes

• Spark plug model: NGK B7HS-10
• Supplier code (Osculati): 47.558.10
• Supplier: Osculati S.r.l.

Compatibility information (as per available description)

According to the provided information, this spark plug is factory-installed on engines of the following brands:

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

Important note: the presence of the brand in the list does not automatically imply compatibility with every model or version. For a correct choice, it is always advisable to verify the code printed on the installed spark plug or consult the engine's technical documentation.

Typical applications in the nautical field

The spark plug is a wear component and is among the most common spare parts in the maintenance of outboard engines and engines used in the nautical field. Periodic replacement (according to the manufacturer's instructions) helps keep the engine in proper operating condition and reduces the risk of issues related to a deteriorated component.

When it may be useful to replace it

• Scheduled maintenance: replacement according to the engine maintenance plan.
• Seasonal intervention: inspection and replacement before the start of the season or after long periods of inactivity.
• Restore original configuration: when you want to maintain the type of spark plug originally specified.
• Onboard replacement: useful as a spare component for quick interventions.

Usage contexts

This spark plug is among the essential spare parts for those performing routine maintenance, both professionally and for the boat owner who prefers to manage basic checks directly. It is a practical choice when looking for a clear reference through the code and supplier number.

Practical advantages

The main advantages of a correctly identified spare part consistent with the original mainly concern ease of management and reduction of errors during purchase and installation.

Why choose this spare part

• Clear references: NGK B7HS-10 code and Osculati 47.558.10 code facilitate identification.
• Common spare part: indicated as factory-fitted on several engine brands, useful for those managing fleets or maintenance on different units.
• Conservative approach: ideal when you want to replace the spark plug while maintaining the same type already specified by the manufacturer.
• Stock management: component suitable to be kept as a ready-to-use spare on board or in the workshop.

Usage and operational notes

For correct replacement, it is good practice to work with the engine off and safely, following the engine manual instructions. The spark plug must be chosen and installed consistently with what the manufacturer specifies: even small differences between models can lead to an incorrect choice.

Tips for verification before purchase

• Check the code on the current spark plug: if it matches B7HS-10, you have the correct reference.
• Verify the supplier code: if you are replacing an item already purchased within Osculati, the 47.558.10 is the direct reference.
• Consult the engine manual: especially useful when the engine has variants or updates over time.

Installation notes (generic)

• Make sure the work area is clean to prevent dirt or debris from entering the spark plug seat.
• Remove and reinstall with appropriate tools, without forcing.
• After replacement, check that the connection is stable and that there are no obvious anomalies.

In summary

The NGK B7HS-10 spark plug (Osculati 47.558.10) is an essential spare part for maintenance, with clear identification and indication of standard mounting on various engine brands. For a safe choice, always refer to the code of the installed spark plug or the engine manufacturer's instructions.

FAQ – Frequently Asked Questions

What is the Osculati code of this spark plug?

The Osculati supplier code associated with this spark plug is 47.558.10.

This spark plug is indicated as standard fitted on which brands?

It is listed as standard on Mariner, Yamaha, Suzuki, Mercury, Tohatsu, Selva, and Honda.

How can I check if it is the right one for my engine?

Check the code printed on the currently installed spark plug: if it matches NGK B7HS-10, the reference is correct. Alternatively, consult the engine manual.

Can I use it as a spare replacement on board?

Yes, it is a component commonly kept as a ready-to-use spare, provided it is compatible with the engine in use.

Does being standard fitted on a brand guarantee compatibility with all models?

No. The indication by brand does not guarantee compatibility with every model or version: it is always advisable to check the spark plug code or the engine's technical documentation.