Jabsco 18786-0001 Neoprene Impeller – Fits Marine Engine Cooling Applications

Jabsco 18786-0001 Neoprene Impeller – Fits Marine Engine Cooling Applications

This high-quality Jabsco neoprene impeller is designed for marine engine cooling and industrial applications. It is suitable for use in engine cooling systems, bilge pumps, and for general purpose water transfer duties.

This part is a direct replacement for Jabsco 18786-0001, CAT 7E-3022, CAT 9Y5427, and Detroit Diesel 23502086.

• Material: Durable Neoprene Rubber
• Shaft Hub: 1" (25mm) Double Flat Epoxy Plastic
• Package Includes: 1x Flexible Impeller

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

• 1x Flexible Impeller (Jabsco 18786-0001)

Installation Guide

1. Before installation, apply a suitable grease to the new impeller. This helps with insertion and provides initial lubrication.
2. Install the impeller into the pump bore, ensuring the blades are bent in the correct direction of rotation.
3. Once the pump is reassembled, allow it to prime for up to 30 seconds.
4. Never run the pump dry for more than 30 seconds. Lack of liquid will cause heat and damage the neoprene impeller.
5. Verify that all suction pipework is airtight to ensure the pump can self-prime effectively.

Troubleshooting & FAQ

Q: How do I know when it's time to replace my impeller?
A: You should replace your impeller if you notice blades are cracked (often about halfway up their height), permanently curved, or have pieces missing.

Q: What causes an impeller to fail prematurely?
A: The most common causes are running the pump dry or cavitation. Signs of dry running include hard, polished, or cracked end faces. If entire blades are missing, it indicates severe dry running. Pieces missing from just the blade tips usually point to cavitation in the system.

Q: What fluids can this impeller handle?
A: This neoprene impeller is designed for pumping fresh water, salt water, and mild chemicals. It is not suitable for pumping oils or fuels, as prolonged contact will cause the neoprene to swell and degrade.

Q: OEM vs. 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.