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1 Stage Stainless Steel Sea Pump
The Extreme single stage pump is the perfect choice for a stock or slightly modified engine. It is designed with large 1” NPT inlet and outlet flanges that deliver the flow of water more efficiently than a stock single impeller OEM pump. By allowing direct inlet water flow these pumps churn out up to 20% more water than a stock factory pump. These pumps are fully rebuildable and will be the last pump you ever buy!
1 Stage Stainless Steel Sea Pump with 1 Groove Pulley & Single 1” NPT Inlet/Outlet
Available in: Aluminum for fresh water use or Stainless Steel for use in salt water with 1” NPT inlet/outlet and optional 1-1/4” custom billet hose barbs.
2 Stage Aluminum Sea Pump
The dual stage Extreme Sea Pump is the next step in our line of high performance, high volume raw water pumps. Incorporating two individual impellers this pump will double the volume of water delivered to your engine or give you the choice of separate routing to individual engine components.
Dual stage pumps are commonly found on high horsepower pleasure boat applications where a dual independent water pump for an an intercooler, exhaust system or oil cooler is advantageous.
Available in either: Billet Aluminum or Stainless Steel, this dual stage sea pump is the key to solving over heating problems.
One of many of Hardin Marines latest cooling innovations in a new two stage sea pump for the popular Mercury Racing HP525, 600SCI, 662SCI, and 700SCI engines. Engine builders have been pleading for a solution to the lack of water that the factory sea pump delivers and Hardin Marine rose to the occasion with the development of this product. Finally an answer to failed headers from water starvation and detonating engines from under supplied intercoolers.
This pump is designed to retrofit to all Mercury Generation 5/6 engines equipped with a sea pump mounted fuel pump. This pump accepts the OEM factory mechanical fuel pumps that are integrated components in the OEM fuel system and provide additional priming support to the factory EFI system. On the supercharged engines this unit is perfect to solve the cooling system short comings of the factory single stage sea water pump system that splits the single water supply to feed the factory intercooler.
Note: Pulley is not included
Replacement Mercury Sea Pump for Mercury 1075 SCi
Built to the highest standards in order to ensure maximum performance this pump is designed to last a lifetime. This pump replaces Design I and II model pumps for Mercury 1075 SCi. Will replace OEM #'s 840048A05 and 841359A01. Pulley is Not Included. Will not replace Design III model pumps. The 3 stage inlet has a stainless down turn inlet.
Replacement Mercury Sea Pump for Mercury 1075 SCi - Gen 1
Built to the highest standards in order to ensure maximum performance this pump is designed to last a lifetime. This pump replaces Design I and II model pumps for Mercury 1075 SCi Gen 1. Will replace OEM #'s 840048A05 and 841359A01. Pulley is Not Included. Will not replace Design III model pumps. The 3 stage inlet has an aluminum inlet with spacer.