Jabsco Mastercraft Ballast Pump, For Mastercraft 300249, 12V

Overview

The Jabsco 18670-9407 is a 12V ballast pump that replaces MasterCraft 300249 and fits the original mounting position with the same electrical quick connector already installed. It uses a flexible impeller pump body with 1/2 inch female NPT ports and outside ports sized for 1 inch inside diameter hose, so it matches the plumbing layout commonly found in compatible MasterCraft ballast systems.

This pump comes with a green Run Dry impeller and is rated for continuous duty. It is self-priming up to 8 feet and moves 8.4 GPM at 10 feet of head, which gives a clear baseline for ballast fill and drain performance on a 12V setup.

Ignition protection to USCG 183.410 and ISO 8846 makes it suitable for gasoline-powered boats where the pump is mounted in enclosed spaces. This is a good match for owners replacing a failed factory ballast pump and wanting the same connector, the same mounting pattern, and the same hose size at the pump.

Key features

• Direct replacement for MasterCraft 300249 with the same electrical quick connector and mounting pattern
• 12V DC pump rated for continuous duty
• Green Run Dry impeller fitted from the start
• Self-priming up to 8 feet with 8.4 GPM flow at 10 feet of head
• 1/2 inch female NPT ports with outside ports that accept 1 inch ID hose
• Ignition protected to USCG 183.410 and ISO 8846 for gasoline-powered boats
• Works best with 1 inch ID hose and should not be paired with hose smaller than 3/4 inch

Installation and setup

Installation stays close to the factory layout. The mounting pattern matches the OEM unit, so there is no need to drill new holes, and the preinstalled connector lets the pump plug into the existing wiring on compatible boats. Using 1 inch inside diameter hose at the pump helps maintain the flow this unit is built to deliver.

The ports also include 1/2 inch female NPT threads, which helps when the plumbing uses threaded fittings instead of slipping hose straight onto the outside barb. Keeping some water in the pump body after installation helps wet the impeller and supports easier priming on the next cycle.

Compatibility and onboard use

This pump makes sense when the boat already uses MasterCraft part 300249 and the goal is to restore the original ballast function without changing the wiring or pump location. It fits 12V systems and suits wake and surf boats where ballast response matters every time the tanks or bags are cycled.

The bronze pump body and flexible impeller layout are practical for ballast water service, where small debris can make its way through the system. On gasoline-powered boats, the ignition-protected motor is an important detail when the pump is mounted near other equipment in enclosed compartments.

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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.

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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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