Jabsco Impeller Kit, Neoprene, 12-Blade, Key Drive, 2-9/16 x 1-5/8 x 5/8 in, Brass Insert

Overview

The Jabsco 18948-0001-P is a replacement impeller kit for flexible impeller pumps used for engine cooling water, bilge, transfer, and other general-purpose marine pump duties. It uses a 12-blade neoprene impeller with a key-drive hub, a 2-9/16 in diameter, a 1-5/8 in width, a 5/8 in shaft diameter, and a brass insert, so the fit needs to match the pump and the impeller you are taking out.

On a boat, this is the kind of service part that matters most when raw-water flow starts to drop or when you are doing scheduled maintenance before the season. Neoprene suits engine cooling and general water-handling duties, and the keyed drive matters because it locks the impeller to the shaft rather than relying on friction alone.

For buyers replacing an existing impeller, the safest check is to match the blade count, outside diameter, width, shaft size, and drive style to the old part and pump model before ordering. Keeping a spare on board also makes sense for boats that run long distances, fish offshore, or depend on an engine cooling pump away from the dock.

Key features

• 12-blade neoprene impeller for raw-water engine cooling and other flexible impeller pump service where neoprene is the correct material
• Key-drive hub, which matters for pumps that require a keyed shaft connection
• 2-9/16 in outside diameter, 1-5/8 in width, and 5/8 in shaft diameter for fit checks before installation
• Brass insert in the hub
• Works as a replacement service part for many bronze flexible impeller pumps used on boats
• Useful as both planned maintenance stock and an onboard spare for emergency impeller changes

Compatibility and fit

This kit is a fit-driven purchase, not a universal impeller. Before installing it, compare the dimensions and the keyed hub to your current impeller, and confirm the pump is set up for a 12-blade neoprene impeller in this size. That matters more than brand names on the pump body, especially on older boats where pumps may have been changed at some point in the boat's life.

It is a practical match for owners servicing raw-water cooling pumps on inboard engines and for anyone maintaining flexible impeller pumps used for bilge, transfer, or general water movement where this size and material are specified. The right buyer is someone replacing the same impeller pattern already in service and wanting to restore pump output without changing the pump itself.

Installation and service

When changing an impeller, remove the end cover and pull the old impeller from the hub rather than prying against the pump body. Greasing the new impeller before installation helps it slide into the bore and gives added protection during the first prime. Once the cover seal is back in place and the cover is reinstalled, the pump is ready to go back into service.

Flexible impellers are wear items, so regular inspection is worth doing on any boat that sees heat, sand, silt, dry starts, or long engine hours. Replacing them on a schedule is usually easier than dealing with a loss of cooling water flow underway.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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