93210-45161 Water Pump Housing O-Ring for Yamaha | JLM Marine

Water Pump Housing O-Ring – Fits Yamaha Marine Outboards

This high-quality aftermarket water pump housing O-ring is designed for reliable sealing performance in Yamaha marine outboard engines. Manufactured from durable rubber material, it provides excellent wear resistance and long service life to keep your cooling system operating efficiently.

This component directly replaces OEM part number 93210-45161 and is cross-referenced with aftermarket equivalents including GLM 84310 and Sierra 18-71332, ensuring broad compatibility across multiple suppliers.

• Direct replacement for worn or damaged water pump housing O-rings
• Made of high-quality rubber with strong sealing properties
• Simple installation with no special tools required

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. For Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

This O-ring is compatible with Yamaha marine outboard engines. Always verify the part number against your engine's service manual or parts diagram before purchasing.

Technical Specifications

Package Contents

Your purchase includes:

• 1 × Water Pump Housing O-Ring

Important: Please compare the product images with your original part before purchasing to ensure proper fitment.

Installation Guide

1. Disconnect the battery and ensure the engine is completely cool before beginning work.
2. Remove the lower unit from the outboard motor following your engine's service manual procedures.
3. Disassemble the water pump housing by removing the retaining bolts and carefully separating the components.
4. Remove the old O-ring from the housing groove, cleaning away any debris or residue with a soft cloth.
5. Inspect the O-ring groove for cracks, corrosion, or damage that could compromise the new seal.
6. Lightly lubricate the new O-ring with marine-grade grease to ease installation and improve sealing.
7. Carefully position the new O-ring into the housing groove, ensuring it sits evenly without twisting or pinching.
8. Reassemble the water pump housing, aligning all components properly before tightening fasteners.
9. Torque all bolts to manufacturer specifications in a cross-pattern to ensure even pressure distribution.
10. Reinstall the lower unit onto the outboard motor, securing all mounting hardware.
11. Reconnect the battery and perform a water flow test to verify proper cooling system operation.
12. Inspect for leaks around the housing during the first few minutes of operation.

Troubleshooting & FAQ

Q: How do I confirm this O-ring fits my Yamaha outboard?
A: Cross-reference your engine's parts diagram with OEM number 93210-45161. Use the Yamaha serial number guide linked above to identify your exact model and year, then verify the part number matches your water pump housing assembly.

Q: How often should I replace the water pump housing O-ring?
A: Replace this O-ring whenever you service the water pump (typically every 2–3 years or 200–300 hours of operation). Always install a new O-ring during water pump rebuilds to prevent cooling system leaks.

Q: What are the signs that my water pump housing O-ring has failed?
A: Common symptoms include water leaking from the lower unit housing, overheating alarms, reduced water flow from the telltale outlet, or visible coolant residue around the pump housing seam.

Q: Can I reuse the old O-ring if it looks okay?
A: No. Rubber O-rings compress and harden over time, losing their sealing ability. Always replace with a new O-ring during water pump service to ensure reliable performance and prevent costly engine damage from overheating.

Q: What's the difference between this aftermarket O-ring and the OEM version?
A: This aftermarket O-ring is manufactured to OEM specifications using comparable-grade rubber compounds. It provides the same fit, form, and sealing function as the original Yamaha part at a more competitive price point.

Q: Is this an OEM part or aftermarket?
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.