QuickMarine 821354A2 water pump impeller kit for Mercury outboard, ready for maintenance.
QuickMarine gearcase water pump housing assembly for easy Mercury repairs.
QuickMarine water tube seal and washer kit ensures durable seals during service.
QuickMarine wear plate and drive key support proper impeller alignment.
QuickMarine Sierra 18-4531 compatible impeller replacement for Mercury engines.
QuickMarine 821354A2 water pump impeller kit for Mercury outboard, ready for maintenance.
QuickMarine gearcase water pump housing assembly for easy Mercury repairs.
QuickMarine water tube seal and washer kit ensures durable seals during service.
QuickMarine wear plate and drive key support proper impeller alignment.
QuickMarine Sierra 18-4531 compatible impeller replacement for Mercury engines.

QuickMarine 821354A2 Water Pump Impeller Repair Kit for Mercury Marine 25-50 HP Outboards | Sierra 18-4531 Compatible

Overview Prepare for dependable outboard maintenance with the QuickMarine 821354A2 Water Pump Impeller Repair Kit. This aftermarket...
Vendor: QUICKMARINER
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£47.60
£47.60
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QuickMarine 821354A2 water pump impeller kit for Mercury outboard, ready for maintenance.

QuickMarine 821354A2 Water Pump Impeller Repair Kit for Mercury Marine 25-50 HP Outboards | Sierra 18-4531 Compatible

£47.60
QuickMarine 821354A2 water pump impeller kit for Mercury outboard, ready for maintenance.
QuickMarine gearcase water pump housing assembly for easy Mercury repairs.
QuickMarine water tube seal and washer kit ensures durable seals during service.
QuickMarine wear plate and drive key support proper impeller alignment.
QuickMarine Sierra 18-4531 compatible impeller replacement for Mercury engines.

QuickMarine 821354A2 Water Pump Impeller Repair Kit for Mercury Marine 25-50 HP Outboards | Sierra 18-4531 Compatible

£47.60
Description
Description
x

Overview

Prepare for dependable outboard maintenance with the QuickMarine 821354A2 Water Pump Impeller Repair Kit. This aftermarket service kit is aimed at Mercury Marine engines in the 25 to 50 HP range, covering common lower unit gearcase parts and offering a complete rebuild option when wear or routine servicing is needed. Built to be a practical, ready-to-install solution, it helps boaters keep cooling systems in good working order for smoother days on the water.

What’s in the kit

  • Rubber impeller
  • Housing assembly (water pump upper)
  • Water tube seal
  • Washer
  • Gasket
  • Wear plate
  • Drive key

Compatibility and compatibility notes

  • Fits Mercury Marine 25-50 HP outboard models
  • Compatible with 821354A2, 46-821354A2, and 821354A1 gearcase parts
  • Replaces Sierra Marine 18-4531 components

Why choose this kit

  • All-in-one service kit designed for straightforward, on-boat maintenance
  • Aftermarket alternative that aligns with Mercury gearcase parts for easy sourcing
  • Sold as a backup spare to minimize downtime and simplify seasonal prep
  • Durable components chosen to support long-lasting pump operation

Real-world use

Whether you are preparing for the boating season, performing a mid-season service, or replacing a worn impeller, this kit is intended to streamline the process. The included parts ensure you have the essentials ready for a complete rebuild in one kit, supporting reliable engine cooling and smoother installs.

Installation tips

Follow standard safety precautions: disconnect power, drain fluids, and refer to your Mercury service manual for torque specs and sequence. This kit is designed to complement existing maintenance routines and can help reduce last-minute trips to the shop.

FAQ

Q: Is this kit compatible with Mercury Marine 25-50 HP outboards?

A: Yes, it fits Mercury gearcase models in the 25-50 HP range and matches 46-821354A2 and Sierra 18-4531 replacements.

Q: What parts are included and what is the benefit?

A: Includes impeller, housing, water tube seal, washer, gasket, wear plate, and drive key for a complete service option.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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