Water Pump Impeller Gasket – Fits Honda 115HP 135HP 150HP 4-stroke (Replaces 19234-ZY6-000)
Water Pump Impeller Gasket – Fits Honda 115HP 135HP 150HP 4-stroke (Replaces 19234-ZY6-000) is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Gasket – Fits Honda 115HP 135HP 150HP 4-stroke ...
Water Pump Impeller Gasket – Fits Honda 115HP 135HP 150HP 4-stroke (Replaces 19234-ZY6-000) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller Gasket is designed for Honda 4-stroke outboard engines rated at 115HP, 135HP, and 150HP. It fits select BF115D, BF115DK1, BF135A, BF135AK, BF150A, and BF150AK series models from pre-1997 through 2007 and later production years, ensuring reliable sealing between the water pump housing and impeller assembly.
This gasket serves as a direct replacement for Honda OEM part number 19234-ZY6-000.
- Prevents water leakage in the lower unit cooling system
- Essential component for water pump rebuilds and routine maintenance
- Precision-cut to match OEM dimensions for secure fitment
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Honda | 19234-ZY6-000 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Honda | BF115D | 115 | 4-Stroke | Pre-1997 | 19234-ZY6-000 |
| Honda | BF115DK1 | 115 | 4-Stroke | 2007 & Later | 19234-ZY6-000 |
| Honda | BF135A4, BF135A5, BF135A6 | 135 | 4-Stroke | 2004–2006 | 19234-ZY6-000 |
| Honda | BF135AK0, BF135AK2 | 135 | 4-Stroke | 2007 & Later | 19234-ZY6-000 |
| Honda | BF150A4, BF150A5, BF150A6 | 150 | 4-Stroke | 2004–2006 | 19234-ZY6-000 |
| Honda | BF150AK0, BF150AK2 | 150 | 4-Stroke | 2007 & Later | 19234-ZY6-000 |
Technical Specs
- Part Type
- Water Pump Impeller Gasket
- OEM Part Number
- 19234-ZY6-000
- Application
- Water pump housing seal
- Material
- Gasket composite
What's in the Box
- 1 × Water Pump Gasket 19234-ZY6-000
Installation Notes
- Disconnect the battery and tilt or remove the outboard for access to the lower unit.
- Drain gear oil and remove the propeller, then separate the lower unit from the mid-section.
- Remove the water pump housing and carefully extract the old impeller and gasket.
- Clean all mating surfaces thoroughly, removing old gasket material and debris.
- Position the new gasket 19234-ZY6-000 onto the pump housing, aligning all bolt holes.
- Install the impeller with blades oriented in the correct rotation direction, applying marine grease to ease installation.
- Reassemble the water pump housing and secure with factory-specified torque.
- Reattach the lower unit, refill gear oil, and reinstall the propeller.
- Run the engine on a flushing adapter or in the water to verify proper water flow from the telltale.
Troubleshooting & FAQ
How do I know if my water pump gasket needs replacement?
Signs include water leakage around the pump housing, overheating, weak or absent telltale stream, or visible cracks and deterioration during routine maintenance. Replace the gasket during every impeller service to ensure a reliable seal.
Can I reuse the old gasket if it looks intact?
No. Gaskets compress and take a permanent set after initial installation. Reusing a gasket can result in leaks and overheating. Always install a new gasket when servicing the water pump.
Will this gasket fit both 2004–2006 and 2007+ Honda models?
Yes. The 19234-ZY6-000 gasket is specified by Honda for BF135A and BF150A models from 2004–2006, as well as BF135AK and BF150AK models from 2007 onward, as listed in the compatibility table.
Do I need any sealant with this gasket?
Typically, no additional sealant is required if the gasket and mating surfaces are clean and undamaged. Consult your Honda service manual; some applications may recommend a thin coat of non-hardening gasket dressing.
How often should I replace the water pump gasket?
Replace the gasket every time you service the impeller, generally every 2–3 years or 200–300 hours of operation. More frequent replacement may be needed in sandy or debris-heavy environments.
What happens if the gasket fails?
A failed gasket allows water to bypass the impeller chamber, reducing cooling efficiency and potentially causing engine overheating. Continued operation can lead to serious internal damage.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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