91301-ZG3-000 Water Pump Impeller O-Ring for Honda BF8D BFP8D BF9.9D BFP9.9D BF10D BF10B BFP10D BFP10B | JLM Marine

Water Pump Impeller O-Ring – Fits Honda 4-Stroke 8, 9.9 & 10 HP Outboards (2002-2006 & All Years)

This high-quality aftermarket water pump impeller O-ring is engineered to fit Honda 4-stroke outboard engines rated at 8 HP, 9.9 HP, and 10 HP. Designed for reliable sealing performance, it ensures proper water flow through your cooling system, protecting your engine from overheating and damage.

Direct Replacement for OEM Part Number: 91301-ZG3-000. This O-ring is a critical component of your water pump assembly, providing a secure seal between the impeller housing and pump body.

• Fits Honda BF8D, BFP8D, BF9.9D, BFP9.9D, BF10D, BF10B, BFP10D, and BFP10B models
• Precision-molded for exact OEM fitment and long-lasting durability
• Essential replacement part during water pump service or impeller replacement

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

This package includes:

• 1 × Water Pump Impeller O-Ring (91301-ZG3-000)

Installation Guide

1. Preparation: Disconnect the fuel line and remove the lower unit from the outboard motor following your service manual. Ensure the engine is cool and workspace is clean.
2. Access the Water Pump: Remove the water pump housing cover and note the orientation of the existing impeller. Carefully extract the old impeller and O-ring from the housing.
3. Inspect Components: Check the pump housing and plate for scoring, corrosion, or damage. Replace any worn components during this service.
4. Clean Mating Surfaces: Thoroughly clean all O-ring sealing surfaces, removing old gasket material, debris, and corrosion.
5. Lubricate the New O-Ring: Apply a thin coating of marine-grade grease or soapy water to the new O-ring to ease installation and ensure proper seating.
6. Install the O-Ring: Carefully position the new O-ring into its designated groove, ensuring it sits evenly without twisting or pinching.
7. Reinstall the Impeller: Insert the impeller (new or serviced) with blades oriented correctly, following manufacturer specifications.
8. Reassemble the Pump Housing: Install the pump plate and housing cover, torquing fasteners to specification in a crisscross pattern.
9. Reinstall the Lower Unit: Align the lower unit with the driveshaft and water tube, then secure all mounting bolts to the correct torque.
10. Test for Leaks: Reconnect the fuel line and run the engine in a test tank or on-water. Verify strong water flow from the telltale and check for any leaks around the pump housing.

Troubleshooting & FAQ

Q: How do I confirm this O-ring fits my Honda outboard?
A: Check the Compatible Engine Models table above for your specific engine model and year. Verify that your original part number matches 91301-ZG3-000 to ensure proper fitment.

Q: How often should I replace the water pump impeller O-ring?
A: Replace the O-ring every time you service the water pump or change the impeller—typically every 2–3 years or 200–300 hours of operation, whichever comes first. Always use a new O-ring to maintain a reliable seal.

Q: What are the signs that my water pump O-ring needs replacement?
A: Symptoms include weak or no water flow from the telltale, engine overheating, water leaks around the lower unit, or steam from the powerhead. Inspect the O-ring during routine maintenance for cracks, hardening, or deformation.

Q: Can I reuse the old O-ring if it looks fine?
A: No, always install a new O-ring during water pump service. Even if the old O-ring appears intact, it may have lost elasticity and sealing ability, risking leaks and engine damage.

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.