91356-ZW1-B00 Water Pump O-Ring for Honda BF75A BF75D BF90A BF90D BF115A BF130A | JLM Marine

Water Pump O-Ring 91356-ZW1-B00 – Fits Honda 4-Stroke Outboards 75–130 HP

This water pump impeller O-ring is designed to fit Honda 4-stroke outboard engines ranging from 75 HP to 130 HP, including the BF75A, BF75D, BF90A, BF90D, BF115A, and BF130A models produced between 2003 and 2006. It provides a reliable seal for the water pump assembly, ensuring optimal cooling system performance.

Direct Replacement for OEM Part Number: 91356-ZW1-B00. This aftermarket O-ring is manufactured to meet OEM specifications, delivering dependable sealing and durability for your outboard's water pump system.

• Essential component for maintaining proper water pump seal integrity
• Compatible with multiple Honda 4-stroke outboard models from 2003–2006
• Precision-engineered to OEM dimensional standards

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Each package includes:

• 1 × Water Pump Impeller O-Ring (91356-ZW1-B00)

Installation Guide

1. Disconnect the battery and ensure the engine is cool before beginning any service work.
2. Remove the lower unit from the outboard motor following your engine's service manual procedures.
3. Access the water pump housing by removing the retaining bolts and separating the lower unit components.
4. Remove the old impeller and O-ring from the water pump assembly, noting the orientation of the impeller blades.
5. Clean all mating surfaces thoroughly to remove old gasket material, debris, or corrosion.
6. Lubricate the new O-ring with marine-grade grease or soapy water to ease installation.
7. Install the new O-ring into the designated groove, ensuring it sits evenly without twists or kinks.
8. Reinstall the impeller with blades oriented in the correct rotation direction as marked or per service manual.
9. Reassemble the water pump housing and lower unit components, tightening all fasteners to manufacturer torque specifications.
10. Reattach the lower unit to the outboard motor and secure all mounting bolts properly.
11. Reconnect the battery and test the cooling system by running the engine in a test tank or on-water to verify water discharge.
12. Inspect for leaks around the pump assembly and confirm steady water flow from the tell-tale indicator.

Troubleshooting & FAQ

Q: How do I confirm this O-ring fits my Honda outboard?
A: Check the compatibility table above for your engine model, horsepower, and year range. Verify that your original part number matches 91356-ZW1-B00 to ensure correct fitment.

Q: How often should I replace the water pump O-ring?
A: It is recommended to replace the water pump O-ring every time you service the water pump impeller, typically every 2–3 years or 200–300 hours of operation, whichever comes first.

Q: What are the signs of a failing water pump O-ring?
A: Common symptoms include reduced water flow from the tell-tale, engine overheating, loss of water pressure, or visible coolant leaks around the lower unit water pump housing.

Q: Can I reuse the old O-ring during water pump service?
A: No, it is not recommended to reuse old O-rings. They lose elasticity and sealing capability over time, which can lead to leaks and cooling system failure.

Q: Is this an OEM or aftermarket part?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.