19292-ZW5-000 Honda Spring Relief Valve | Genuine Used Part

🔧 Product Description

Genuine Honda Cooling-System Relief Valve Spring - Part Number: 19292-ZW5-000

A genuine used Honda cooling-system pressure-relief valve spring for selected 115HP to 250HP four-stroke outboards.

The spring loads the relief valve within the mount-case cooling circuit. It keeps the valve closed at lower pressure and permits controlled bypass flow when cooling-water pressure rises above the designed threshold.

⚙️ Key Features

• Genuine Honda Marine OEM relief-valve spring
• Correct Honda part number 19292-ZW5-000
• Used in ZW5- and ZY3-family mount-case relief-valve assemblies
• Controls the opening pressure of the cooling-system bypass valve
• Fits Honda inline-four and V6 four-stroke outboard families

🚤 Compatibility

Commonly used on

• Honda Marine mount-case cooling-pressure relief systems
• BF115 / BF130 inline-four and BF175-BF250 V6 four-stroke outboards

Typically suits

• Engine models:
• Honda BF115A, BF115A1, BF115A2, BF115A3 and BF115A4
• Honda BF130AX, BF130A, BF130A1, BF130A2, BF130A3 and BF130A4
• Honda BF175A3, BF175A6, BF175AK1, BF175AK2 and BF175AK3
• Honda BF200A2 through BF200AK3 - BAEJ / BAFJ serial families 1000001 to 1899999
• Honda BF200D - BBRJ-1000001 and above
• Honda BF225A2 through BF225AK3 - BAGJ / BAHJ serial families 1000001 to 1899999
• Honda BF225D - BBPJ-1000001 and above; regional BBPJ-8000001 and above
• Honda BF250A applications using the ZY3 relief-valve assembly
• Honda BF250D - BBNJ-1000001 and above; regional BBNJ-8000001 and above
• HP Range: 115HP - 250HP
• Engine Type: Honda inline-four and V6 four-stroke outboard
• Year Range: Approximately 1999 onward

🔌 Function

The spring holds the relief valve against its seat until cooling-water pressure reaches the designed level. The valve then opens to regulate pressure and bypass excess water through the mount-case cooling circuit.

⚠️ Common Signs of Failure

• Spring is broken, corroded or permanently compressed
• Relief valve opens too early and reduces cooling-water pressure
• Relief valve remains closed and causes excessive system pressure
• Engine overheats because the valve cannot regulate flow correctly
• Spring is displaced during relief-valve servicing

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 19292-ZW5-000 current Honda OEM service reference

OEM / Related Numbers

• 19292-ZW5-000
• 19292ZW5000
• 19291-ZW5-000 related relief valve
• 19295-ZW5-000ZA earlier BF115 / BF130 cover
• 19295-ZY3-000 related right relief-valve cover
• 19297-ZY3-000 related left relief-valve cover
• 19296-ZY3-000 related cover gasket
• 19297-ZW5-000 related relief-valve gasket

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated