NGK spark plug br5hs – code: 47.558.36 – Osculati

NGK BR5HS Osculati spark plug – replacement for outboard motors

The NGK BR5HS spark plug Offered by Osculati, it is a spare part designed for the regular maintenance of outboard motors and for replacing a worn or no longer efficient spark plug. In the nautical field, a spark plug in good condition helps maintain regular ignition and reduce typical issues related to starting difficulties or irregular operation caused by worn components.

This product sheet refers to the spark plug identified as BR5HS and associated with the Osculati code 47.558.36. It is a practical solution for those who want a recognizable and easily manageable spare part in the workshop or onboard, especially when planning periodic control interventions before the season or after long periods of inactivity.

Product features and details

The spark plug is indicated as a replacement NGK BR5HS in Osculati supply. The available information highlights its use on several brands of outboard motors commonly found in the nautical field.

Identification and codes

• Spark plug model: NGK BR5HS
• Osculati Code: 47.558.36
• Supplier: Osculati S.r.l.

Standard installation (information from existing description)

According to the available description, these spark plugs are fitted as standard on engines of the following brands:

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

Note: the presence in the list does not replace verification on the specific engine model. In case of doubt, it is advisable to check the manufacturer's manual or the spark plug currently installed.

Typical applications in the nautical field

The NGK BR5HS spark plug is a consumable component that falls within the maintenance and restoration activities of outboard motors. It is particularly useful when you want to keep the engine in regular operating conditions and reduce the risk of issues related to a deteriorated, dirty, or no longer compliant spark plug according to the manufacturer's instructions.

When it may be useful to replace it

• Scheduled maintenance: periodic interventions before seasonal use or after storage.
• Diagnosis of irregular operation: in the presence of symptoms compatible with wear or fouling of the spark plug (to be verified with technical inspection).
• Recovery after long stops: useful as part of a general ignition check.
• Onboard spare part: compact and practical component to keep as a spare for quick interventions.

Usage contexts

Suitable for typical uses in recreational boating and light work, where the continuous operation of the outboard motor is important for maneuvers, transfers, and daily activities. In general, replacing the spark plug is one of the most common engine maintenance operations, often performed together with checks on fuel supply and filters, according to the manufacturer's instructions.

Operational advantages (without unverifiable claims)

Choosing a spark plug clearly identified by model and code allows easier spare part management and greater consistency in maintenance interventions.

• Recognizable replacement: the BR5HS code facilitates identification compared to generic solutions.
• Organized warehouse management: the Osculati code helps to reorder and track the product quickly.
• Maintenance convenience: component typically replaceable with common tools, following the manufacturer's procedures.
• Suitable for various popular brands: indicated as standard equipment on multiple outboard brands (always check your model).

Usage and important notes

For a correct replacement, it is always advisable to follow the engine manufacturer's instructions and good workshop practices. The spark plug is an element directly involved in ignition: incorrect installation or the use of an unsupported model can affect engine performance.

Practical advice before purchase

• Check the code: check that the requested spark plug is indeed a BR5HS by comparing the marking on the installed spark plug or the engine's spare parts list.
• Check the Osculati reference: if you manage spare parts through catalogs or nautical supplies, the code 47.558.36 helps avoid ordering errors.
• Evaluate the condition of the removed spark plug: visual inspection can provide useful indications (e.g., presence of deposits), to be interpreted with technical expertise.

Installation instructions (general)

• Work with the engine off and safely, following the procedures provided by the manufacturer.
• Remove and install the spark plug with appropriate tools, avoiding damage to threads and surrounding components.
• After replacement, check that the connection is stable and that the engine runs properly.

For work on engines under warranty or in the presence of persistent anomalies, it is advisable to consult a qualified technician.

Why choose this spare part on Technofluid

The availability of clearly identified spare parts is essential. This NGK BR5HS spark plug supplied by Osculati is designed for those who want a product with clear references (code and label) and typical use in outboard maintenance.

If you are preparing the boat for the season, organizing a spare parts list, or simply want to have a stock on board, the spark plug is an essential component to consider within an orderly maintenance plan consistent with the engine manufacturer's instructions.

FAQ – Frequently Asked Questions

Is this spark plug compatible with my outboard?

The description indicates that it is standard equipment on Mariner, Yamaha, Suzuki, Mercury, Tohatsu, Selva, and Honda engines. For safety, check the code on the spark plug currently installed or consult your engine's spare parts manual.

What is the Osculati code for the NGK BR5HS spark plug?

The reference shown on the sheet is 47.558.36.

What is the purpose of replacing the outboard spark plug?

The spark plug is a consumable component related to ignition. Replacement is part of regular maintenance and can be useful when the spark plug is worn, dirty, or during periodic engine checks.

Can I keep it as an onboard spare?

Yes, it is a compact and practical spare to keep in stock, especially if you make frequent outings or want to be ready for quick interventions (always following the manufacturer's procedures).

How do I verify that the correct code is BR5HS?

Check the marking on the spark plug mounted on the engine or consult the technical/spare parts documentation of the outboard manufacturer. If in doubt, ask a technician for support.