Attwood Marine Motor Flushers, For I/O and Outboard Engines

Overview

The Attwood Marine Universal Motor Flusher is a range of outboard and I/O engine flushers that connects to a standard garden hose to run fresh water through the engine cooling intake area after use.

These flushers are made for lower units with side water intakes. Molded cups sit over the intake openings, while the clamping yoke holds the flusher in place during flushing. Regular flushing is especially useful after saltwater running, sandy ramps, silty water, or long dockside periods, where deposits can build up inside the cooling system.

The range includes round, rectangular, and dual water feed configurations, with plastic and metal body options. That gives boat owners a simple way to match the flusher style to the engine lower unit and the type of maintenance routine they use at home, at the marina, or after trailering.

Key features

• Connects to a standard garden hose for fresh-water flushing after saltwater, sand, silt, or alkali exposure.
• Molded cups deliver water to the side intakes on the lower unit, helping clear the cooling system path during routine maintenance.
• Self-adjusting clamping yoke helps the cups seat over side intake openings on many domestic and imported outboard and I/O engines.
• Available in round, rectangular, and dual water feed versions to suit different lower-unit intake layouts.
• Plastic and metal body choices are available across the range, depending on the selected configuration.
• Useful for trailered boats, fishing boats, tenders, and seasonal layup routines where flushing after use helps reduce buildup inside the cooling passages.

Variants

This product is offered in multiple flusher configurations for different lower-unit layouts and maintenance preferences.

The main differences across the variants are the cup shape or feed style and the body material. All variants are engine flushers that connect to a garden hose and are used for flushing side water intakes on compatible outboard or I/O lower units.

• 9372-2: Round flusher with plastic body. This version uses the common round cup style and is suited to straightforward fresh-water flushing on compatible side-intake lower units.
• 16205-2: Round flusher with metal body. This keeps the round cup layout while using a metal body for boat owners who prefer that construction style.
• 16207-2: Rectangular motor flusher with metal body. The rectangular cup shape gives a different contact area for lower units where rectangular muffs sit more naturally over the intake area.
• 16208-7: Universal dual water feed flusher with metal body. The dual water feed layout supplies water through both cups, which can help maintain more even water delivery across both sides during flushing.

Installation and use

Place the cups over the engine water intake openings on the lower unit, connect the garden hose, and confirm that the flusher is seated firmly before running water through the system. The hose should not be opened to full flow, since excessive pressure is not needed for this type of flushing tool.

Before starting the engine for a flush, confirm that the engine manufacturer allows flushing with muffs and follow the engine manual for water flow, run time, and gear position. The cups need to stay aligned over the intakes throughout the flush so the cooling system receives water continuously.

Compatibility and fit

These flushers are intended for many domestic and imported outboard and I/O engines with side water intakes on the lower unit. Fit depends on the intake shape, intake location, and available clearance around the gearcase, so the selected round, rectangular, or dual-feed style should match the engine layout.

This is a practical maintenance item for boaters who run in saltwater, brackish water, shallow sandy areas, or silty rivers. It is also helpful before storage, after trailering, and during routine checks where the cooling passages need a fresh-water rinse.

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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