Water Pump Impeller O-Ring – Fits Honda 75HP 90HP 115HP 130HP (Replaces 91356-ZW1-B00)
Water Pump Impeller O-Ring – Fits Honda 75HP 90HP 115HP 130HP (Replaces 91356-ZW1-B00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Water Pump Impeller O-Ring – Fits Honda 75HP 90HP 115HP 130HP (Repl...
Water Pump Impeller O-Ring – Fits Honda 75HP 90HP 115HP 130HP (Replaces 91356-ZW1-B00) is backordered and will ship as soon as it is back in stock.
Product Details
This Water Pump Impeller O-Ring is designed for Honda 4-stroke outboard engines from 75HP to 130HP, covering BF75A, BF75D, BF90A, BF90D, BF115A, and BF130A models manufactured between 2003 and 2006. It ensures a secure seal around the impeller housing to prevent water leaks and maintain optimal cooling performance.
This aftermarket replacement directly replaces Honda OEM part number 91356-ZW1-B00.
- Fits Honda 4-stroke outboards: 75HP, 90HP, 115HP, and 130HP models
- Direct replacement for 91356-ZW1-B00
- Essential component for water pump service and maintenance
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Honda | 91356-ZW1-B00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years |
|---|---|---|---|---|
| Honda | BF75A | 75 | 4-Stroke | 2003–2006 |
| Honda | BF75D | 75 | 4-Stroke | K0, K2 |
| Honda | BF90A | 90 | 4-Stroke | 2003–2006 |
| Honda | BF90D | 90 | 4-Stroke | K0, K2 |
| Honda | BF115A | 115 | 4-Stroke | 2003–2006, K0 |
| Honda | BF130A | 130 | 4-Stroke | 2003–2004 |
Technical Specs
- OEM Part Number
- 91356-ZW1-B00
- Application
- Water pump impeller seal
- Fitment
- Honda 4-stroke outboards 75HP–130HP
What's in the Box
- 1 × O-ring 91356-ZW1-B00
Installation Notes
- Disconnect the fuel line and remove the lower unit according to your engine's service manual.
- Remove the water pump housing and carefully extract the old impeller and O-ring.
- Clean all mating surfaces thoroughly, removing old gasket material and debris.
- Inspect the impeller housing for scoring or damage; replace if necessary.
- Lightly lubricate the new O-ring with water-resistant grease before installation.
- Position the new O-ring in the impeller housing groove, ensuring it seats evenly without twisting.
- Install the impeller, aligning the keyway or drive pin as specified.
- Reassemble the water pump housing and torque fasteners to manufacturer specifications.
- Reinstall the lower unit and reconnect the fuel line.
- Run the engine and check for leaks around the water pump area.
Troubleshooting & FAQ
How do I know if my water pump O-ring needs replacement?
Signs include water leaking from the lower unit, engine overheating, weak or inconsistent cooling stream, or visible wear and cracking on the O-ring during routine service. Replace the O-ring during every impeller change or water pump service.
Can I reuse the old O-ring?
No. O-rings compress and degrade over time and lose their sealing ability. Always install a new O-ring when servicing the water pump to prevent leaks and ensure reliable cooling.
What lubricant should I use on the O-ring?
Use a water-resistant marine grease or silicone-based lubricant. Avoid petroleum-based products that can degrade rubber seals. A light coating helps the O-ring seat properly without damage during installation.
Will this fit my Honda BF90D K1?
This O-ring is confirmed compatible with BF90D K0 and K2 models. For K1 or other variants not listed, verify your engine's parts diagram or consult your service manual to confirm the correct part number.
How often should I replace the water pump O-ring?
Replace it whenever you service the water pump or change the impeller, typically every 2–3 years or 200–300 hours of operation. More frequent replacement may be needed in saltwater or sandy environments.
What's the difference between OEM and aftermarket O-rings?
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.
How fast will my order ship and what does it cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
What if the part doesn't fit or fails?
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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