Spark plug ngk bp7hs – code: 47.558.14 – Osculati

The NGK BP7HS spark plug offered by Osculati is a spare part designed for the regular maintenance of engines, particularly in the nautical context where reliability and smooth operation are key aspects. It is a consumable component subject to wear and tear and, if replaced at the correct intervals, helps keep the engine in proper working condition.

This spark plug is indicated as standard equipment on several engine brands: Mariner, Yamaha, Suzuki, Mercury, Tohatsu, Selva and Honda. When purchasing, it is still good practice to verify the correspondence with the specific model of your engine and with the manufacturer's indications, especially when working on different versions, years, or configurations.

Product features and details

Identification and codes

For proper management of the spare part (reordering, assistance, comparison with exploded views or manuals), the main references are:

• Spark plug model: NGK BP7HS
• Product code (Osculati): 47.558.14
• Supplier: Osculati S.r.l.

Maintenance spare part

The spark plug is a fundamental element of the combustion system: a spark plug in good condition promotes smooth starting and more uniform operation. In the nautical field, where the engine can be exposed to humidity, salt spray, and periods of inactivity, replacing the spark plug is among the most common preventive maintenance interventions.

Standard installation on several brands

According to available information, this spark plug is used as standard equipment on engines from the following brands:

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

Note: the list refers to typical/standard applications; it does not constitute a guarantee of universal compatibility. To avoid errors, always compare the spark plug code required by the manufacturer or the one already installed on the engine.

Typical applications in the nautical field

The NGK BP7HS spark plug is a spare part used in maintenance and restoration interventions on marine and outboard engines, especially when symptoms related to ignition are detected or when performing scheduled servicing. It is a suitable choice both for those who perform maintenance themselves and for workshops and shipyards that manage consumable spare parts for various engines.

When replacement can be useful

In general, spark plug replacement is considered in the presence of:

• starting difficulties or irregular starting;
• uneven idling operation;
• periodic maintenance according to the manufacturer's indications;
• storage and pre-season checks, especially after long periods of inactivity.

These are examples of typical situations: correct diagnosis always depends on the engine conditions and the fuel/ignition system.

Advantages for those who perform maintenance

Choosing a spark plug identified with the correct code and clear product code helps simplify spare part management and reduce the risk of incompatibility. In a technical e-commerce, the availability of references such as NGK BP7HS and 47.558.14 is particularly useful for:

• immediate recognition of the component during reordering or replacement;
• consistency with the standard equipment on various indicated brands;
• organized warehouse management for workshops and maintenance personnel, thanks to unique codes;
• quick during servicing or pre-departure checks.

“Small” spare part, significant practical impact

Although it is a compact component, the spark plug is central to the ignition cycle. A spark plug in good condition, correctly installed and compliant with the engine specifications, helps keep the ignition system in the conditions intended by the manufacturer. For this reason, it is often among the first elements checked during maintenance.

Usage and operational notes

Check before purchase

Before ordering, it is advisable to:

• check the abbreviation shown on the currently installed spark plug;
• consult the engine manual or the manufacturer's spare parts table;
• in case of doubt, compare the Osculati code 47.558.14 with the available documentation or request technical support.

Installation

The installation of the spark plug must be carried out following the engine manufacturer's instructions (procedures, checks, and settings).

Checks during maintenance

During replacement or inspection, it is good practice to also check the general condition of the spark plug cap and connections, as well as verify that there are no obvious signs of wear or abnormal deposits. A visual check can help identify any need for broader intervention, without replacing a complete technical diagnosis.

Advice for storage

If the engine remains idle for extended periods, checking the spark plugs is among the useful checks before the season resumes. In a marine environment, attention to ignition components is particularly important to reduce issues at first start-up.

In summary: the NGK BP7HS spark plug (code Osculati 47.558.14) is a practical spare part for maintenance, indicated as factory-fitted on various engine brands. For a correct choice, always verify compatibility with your specific model.

FAQ – Frequently Asked Questions

What is the Osculati code of this NGK BP7HS spark plug?

The Osculati code indicated for this NGK BP7HS spark plug is 47.558.14.

On which engine brands is it indicated as factory-installed?

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

Is this spark plug compatible with all engines of the listed brands?

Not necessarily. The indication concerns typical/standard uses, but compatibility depends on the specific engine model. It is recommended to check the code required by the manufacturer or the one already installed.

How can I verify if the NGK BP7HS is the right spark plug for my engine?

You can check the code printed on the currently installed spark plug and compare it with the indications in the engine manual or spare parts documentation. In case of doubt, also use the Osculati code reference 47.558.14.

Is it suitable for routine maintenance in the nautical field?

Yes, it is a typical spare part for routine maintenance interventions on the ignition system, such as servicing and pre-season checks, always following the engine manufacturer's procedures.