Sea Water Pump Mechanical Shaft Seal Kit – Fits Volvo Engines & Jabsco Pumps (Replaces 96080-0080, 818864)

Sea Water Pump Mechanical Shaft Seal Kit – Fits Volvo Engines & Jabsco Pumps (Replaces 96080-0080, 818864)

This aftermarket mechanical shaft seal kit is engineered for Volvo marine engines that utilize Jabsco raw water pumps. It serves as a direct replacement for worn or leaking seals, restoring pump integrity and preventing water damage.

This kit is compatible with a wide range of pump models, including the Volvo/Jabsco 11850-SERIES, 11860-SERIES, 17100-SERIES, 18830-SERIES, 18840-SERIES, 18930-SERIES, and 18940-SERIES. It directly replaces Jabsco part number 96080-0080, Volvo 818864, and Northern Lights 25-12066.

• Installation Method: Direct replacement that requires pump disassembly.
• Key Feature: Includes a durable copper spring design for reliable sealing.
• Function: Replaces worn or damaged seals to prevent water leakage from the pump assembly.

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

• 1 x Mechanical Shaft Seal Kit (Replaces 96080-0080 / 818864 / 25-12066)

Installation Guide

1. Disconnect the battery and gain safe access to the sea water pump.
2. Disassemble the pump to expose the old shaft seal assembly.
3. Carefully remove the worn-out seal, taking note of its orientation.
4. Thoroughly clean the seal housing and shaft to remove any debris or corrosion.
5. Important: Press the new seal into place, ensuring the open side with the visible copper spring faces toward the impeller.
6. Reassemble the pump, making sure all gaskets and components are correctly aligned.
7. Once assembled, reconnect all hoses, test for leaks, and ensure proper pump operation.

Troubleshooting & FAQ

How do I know if this seal kit fits my pump?
Confirm your pump is listed as a compatible series (e.g., Volvo/Jabsco 11850-SERIES, 18830-SERIES, etc.). The most reliable method is to cross-reference your existing part number with the ones this kit replaces: Jabsco 96080-0080, Volvo 818864, or Northern Lights 25-12066.

What is the correct way to install this seal?
The most critical step is correct orientation. The open side of the seal, where the copper spring is visible, must face toward the pump's impeller. Installing it backward will cause it to fail quickly. Professional installation is recommended if you are unsure.

What are the signs my current shaft seal is failing?
The most common sign is water leaking or dripping from the sea water pump's weep hole or around the main shaft. This indicates the seal is no longer preventing water from passing from the "wet" side of the pump to the "dry" side.

OEM vs. Aftermarket?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.