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Long Island’s Trusted Boating Supply Store – Quality Gear for Your Next Adventure! Shop Now and Save all Year Long.
Long Island’s Trusted Boating Supply Store – Quality Gear for Your Next Adventure! Shop Now and Save all Year Long.

Groco 1-1/4" Engine Flush Kit & Adaptor

Brand Groco
Availability :
3 in stock
Availability :
3 in stock
Availability :
8 in stock
Original price $120.99 - Original price $152.99
Original price
$120.99 - $152.99
Current price $120.99
Choose a Size

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1-1/4" Engine Flush Kit & Adaptor

The Concept

A simple quarter-turn quick-release plug can add safety and flexibility to any water system.  Add SSC to the top of any seacock to allow instant emergency bilge pumping, or to simplify winterization and cooling system flushing.

In an Emergency

While the connected engine is running, close the seacock and remove the quick-release plug. Excess bilge water will be pumped overboard by the engine's raw water pump. Add GROCO BSA to pump out remote bilge locations.

For Winterization

Close the seacock, remove the quick-release plug, and insert the service adaptor (included). Anti-freeze can be pumped into the cooling system.

For System Flushing

Close the seacock and insert the service adaptor. Dockside water can be used to flush the cooling system with the engine running at idle speed.


  • Bronze service adaptor


  • Hose ID (in): 1-1/4"
  • Thread NPT: 1-1/4"
  • Overall Length: 4.55"

*Add a GROCO Bilge Strainer to pump out remote bilge locations

Brand: Groco

Ship Length: 11.0

Ship Width: 9.0

Ship Height: 5.0

WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to

Backorder Policy: Occasionally, due to demand or supplier delays, some items may be temporarily out of stock or non-stock items. To ensure you can still get the products you need, you can order items even when they're out of stock. Our sales team will update you with the shipping lead time. Once back in stock, we promptly ship your item, and if your order includes both in-stock and backordered items, we may split the shipment. You can cancel your backorder before shipment, and request a refund to original payment method. For any inquiries, contact us at


Orders are fulfilled same day if placed before 3PM. Exclusions Apply.


Place an order for pick up at:

47 West Merrick Road

Freeport, NY 11520


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