Jabsco Impeller Kit, 12 Blade, Neoprene, Key Drive, 2-7/16 in Diameter, 5/8 in Shaft Diameter

Overview

The Jabsco 18838-0001-P is a 12-blade neoprene replacement impeller kit for keyed-drive bronze flexible impeller pumps. It measures 2-7/16 in in diameter, 1-1/4 in in depth, uses a 5/8 in shaft diameter, and has a brass insert at the hub, so it should be matched to the impeller already in your pump rather than ordered by diameter alone.

This size is used in marine engine-cooling pumps and in some bilge, transfer, and general water-service pumps that use a bronze flexible impeller design. On a boat, it is the kind of service part that makes sense to replace on schedule and keep aboard as a spare, because a damaged impeller can cut water flow quickly and turn into a cooling problem just as fast.

Key features

• 12-blade neoprene impeller for keyed-drive bronze flexible impeller pumps
• Fit-critical dimensions: 2-7/16 in outside diameter, 1-1/4 in depth, and 5/8 in shaft diameter
• Brass insert at the hub
• Used in many marine pump applications including engine cooling, bilge duty, transfer duty, and general onboard water movement where this size is specified
• A practical spare to carry aboard when uninterrupted raw-water flow matters

Compatibility and fit

Fit comes down to four checks: outside diameter, impeller depth, shaft size, and drive style. This impeller uses a keyed drive, so it is not a substitute for spline-drive or pin-drive versions even when the outside diameter looks close.

Before ordering, compare the old impeller or the pump service data with the 2-7/16 in diameter, 1-1/4 in depth, 5/8 in shaft diameter, and 12-blade layout. That is the safest way to confirm the impeller will seat correctly in the housing and prime the pump as expected.

Installation and maintenance

When you change the impeller, pull the old one by the hub with the proper removal tool or with pliers that will not mark the pump body. Screwdrivers can scar the pump face and create leak paths at the cover.

Grease the new impeller lightly before installation so it slides into the bore more easily and has some protection during initial prime. After the cover is back on, check for normal prime and water flow right away. For boats that rely on raw-water cooling, replacing the impeller on a regular schedule is a lot easier than dealing with a failure underway.

Use on board

This part suits owners maintaining raw-water engine-cooling pumps and other bronze flexible impeller pumps that already call for this size and keyed hub pattern. It also makes sense as a spare for coastal cruising, fishing boats, and longer runs where loss of pump output can stop the day quickly.

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.

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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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