Water Pumps and Accessories - Mercury Sea Pumps

Stainless Steel Gen 7 PLUS Sea Pump for Mercury 350 Mag, 496 MAG /HO, 8.2L Mag and 502 Mag - With Pulley

The NEW and IMPROVED Gen 7 Plus Sea Pump now includes dual seals and dual bearings. The bearing are also 40% larger than OEM bearings leading to even longer pump life!

• 100-percent factory leak tested to ensure OEM dependability
• Premium SPEC-approved quality components
• Premium SPEC-quality seals: utilizing OE face materials provides exceptional heat transfer and low friction
• Endurance-quality bearings: severe-duty, precision-ground and lubricated Heat-treated bearing shafts to match rollers
• High-quality, protective packaging

For a number of years now the factory sea pumps have been plagued with a design flaw that made each factory pump a throw away non serviceable item. While the impeller could be serviced it is the factory body that wears out prematurely. Without the proper tolerances these units just won’t pump water. Well, Hardin Marine, the largest manufacturer of all Stainless Steel Sea Pumps set out to again solve the short comings of OEM equipment. By developing a stainless steel 316 heat treated casting Hardin Marine was able to incorporate new dual stainless steel serviceable wear plates as well as the use of a standard common Mercury water impeller. These characteristics have now turned this pump into a serviceable replacement that will provide years of serviceable life span. And all at a fraction of the cost of the original pump. So if you’re out to update and upgrade to a pump that's designed to last a life time, look no further as it has arrived.

Stainless Steel Gen 7 Plus Sea Pump for Mercury 350 Mag, 496 Mag / HO, 8.2L Mag and 502 Mag (No Pulley)

The NEW and IMPROVED Gen 7 Plus Sea Pump now includes dual seals and dual bearings. The bearing are also 40% larger than OEM bearings leading to even longer pump life!

NOTE:  YOU CAN PURCHASE THE MODEL WITH PULLEY PRE-INSTALLED (625-4131) BY CLICKING HERE.

• 100-percent factory leak tested to ensure OEM dependability
• Premium SPEC-approved quality components
• Premium SPEC-quality seals: utilizing OE face materials provides exceptional heat transfer and low friction
• Endurance-quality bearings: severe-duty, precision-ground and lubricated Heat-treated bearing shafts to match rollers
• High-quality, protective packaging

For a number of years now the factory sea pumps have been plagued with a design flaw that made each factory pump a throw away non serviceable item. While the impeller could be serviced it is the factory body that wears out prematurely. Without the proper tolerances these units just won’t pump water. Well, Hardin Marine, the largest manufacturer of all Stainless Steel Sea Pumps set out to again solve the short comings of OEM equipment. By developing a stainless steel 316 heat treated casting Hardin Marine was able to incorporate new dual stainless steel serviceable wear plates as well as the use of a standard common Mercury water impeller. These characteristics have now turned this pump into a serviceable replacement that will provide years of serviceable life span. And all at a fraction of the cost of the original pump. So if you’re out to update and upgrade to a pump that's designed to last a life time, look no further as it has arrived. Note: Impeller is included.

Stainless Steel Gen 8 Sea Pump for Mercury (No Pulley)

• 100-percent factory leak tested to ensure OEM dependability
• Premium SPEC-approved quality components
• Premium SPEC-quality seals: utilizing OE face materials provides exceptional heat transfer and low friction
• Endurance-quality bearings: severe-duty, precision-ground and lubricated Heat-treated bearing shafts to match rollers
• High-quality, protective packaging

This is the new Generation 8 “Extreme Series” sea pump. Hardin Marine, the largest manufacturer of all Stainless Steel Sea Pumps set out to again solve the short comings of OEM equipment. By developing a stainless steel 316 heat treated casting that would incorporate new dual stainless steel serviceable wear plates as well as the use of a standard common water pump impeller.

These characteristics have now turned this pump into a lifetime serviceable replacement pump that will provide years of serviceable life span. And all at a fraction of the cost of the original pump. So if you’re out to update and upgrade to a pump that’s designed to last a lifetime, look no further as it has arrived. Replaces OEM 8M0095465, 8M0118070, 8M0123307, 46-8M0122667. Note: Impeller is included.

NOTE: Click here to figure out if you have the older style (design 1) or newer style (design 2) housing and wear plate.

Hardin Marine has once again used their racing support and heritage to develop a superior sea pump replacement option for the Mercruiser generation 5/6 application that requires the mechanical fuel pump mounting provision. This pump uses a 316L heat treated Stainless steel snout with a 17-4 hardened pump shaft and high speed roller bearings to provide the ultimate sea pump foundation for years of service. This pump is available in two (2) versions one which is the standard duty unit using a OEM style plastic impeller housing and impeller and a superduty version that employs Hardin's all stainless steel "Life Time" impeller housing with OEM Mercuiser impeller. The pumps are assembled and tested right here in the USA and are the best money can buy.

• Heavy Duty "Extreme" Version
• Extreme Series Stainless Steel Housing
• Hardin Stainless Steel Snout
• 17-4 Hardened Pump Shaft
• High Speed Roller Bearings
• Accepts OEM Factory Pulley
• Replaces Mercruiser #'s 46-807151A8, 46-8m0084270, 46-807151A31, and 72774A82
• For parts list, and to buy replacement parts click here

This pump is the standard duty unit using a OEM style plastic impeller housing and impeller. The pumps are assembled and tested right here in the USA and are the best money can buy.

• Standard Duty Version
• OEM Style Plastic Housing
• High Speed Roller Bearings
• Accepts OEM Factory Pulley
• Replaces Mercruiser #'s 46-807151A8 and 72774A82

Stainless Steel Sea Pump Assembly

Finally a Sea Water Pump designed to last a life time. Hardin Marine has taken their years of sea water pump manufacturing experience and designed an all new stainless steel water pump to replace the factory pot metal and plastic style pumps used on original equipment applications.

These pumps are cast from 316L high quality stainless steel and each pump uses a double roller bearing style snout assembly while integrating a one piece rear impeller housing. These housings will not crack and erode like the factory style units. A factory style press on pump mandrel can be used to accommodate most pulleys. A unique feature to this pump is that the rear housing has 1"npt female inlet/outlet ports so that a wide range of fittings and hose connections can be used for ease of installation.

If your looking for what could possible be the last sea water pump you ever buy look no further as this is the finest direct replacement sea pump on the market today.

Replaces a sierra #18-3600 and Mercruiser 46-72774A32 and 46-807151A12. Also replaces two-piece raw water pump. Fits most Bravo, TR, TRS applications

Comes with Impeller

Stainless Steel Snout / OEM Housing Sea Pump Assembly

Replaces:
• Sierra #18-3600
• Mercruiser 46-72774A32 and 46-807151A12

Hardin Marine has taken their years of sea water pump manufacturing experience and blended their Extreme Series Sea Pump with an OEM style housing. These snout assembly on these pumps are cast from 316L high quality stainless steel and each pump uses a double roller bearing style snout assembly while integrating a one piece OEM plastic rear impeller housing. Replaces two-piece raw water pump. Fits most Bravo, TR, TRS applications

These are new Stainless Steel replacement sea pumps. We have configured options so that you may buy just a replacement pump only or bracket only or even an entire replacement pump assembly including the mounting bracket, V-groove pulley and mandrel. This model include a beautifully polished billet bracket and V-Belt Pulley and Mandrel.

NOTE: Billet bracket cannot be used in Circ Pump applications!

These are new Stainless Steel replacement sea pumps. We have configured options so that you may buy just a replacement pump only or bracket only or even an entire replacement pump assembly including the mounting bracket, Serpentine pulley and mandrel. This model include a beautifully polished billet bracket and Serpentine Pulley and Mandrel.

NOTE: Billet bracket cannot be used in Circ Pump applications!

These are new Stainless Steel replacement sea pumps. We have configured options so that you may buy just a replacement pump only or bracket only or even an entire replacement pump assembly including the mounting bracket, V-groove pulley and mandrel.

• Dual 1" common inlet, 2x 1" outlets

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

• Single 1-1/4" outlet common outlet

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

2 Stage Sea Pump for Gen 4 & 6 Mercury Applications

• Dual 1" common inlet, 2 x 1" outlets

Note: Pulley is not included, image shown is rendering not actual item.

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.

Brass Seawater Pump w/ SS Fittings- For engines with V-belt replaces MerCruiser part # 46-807151A12, 46-72774A32

All Brass Seawater Pump with Stainless Steel Fittings

Replacement Seawater Pump For Mercruiser Gen 5, with Pulley. For engines with V-belt replaces MerCruiser part # 46-807151A8 and 72774A82. Imported.

Replacement Seawater Pump For Mercruiser Gen 7, with Pulley. For engines with Serpentine-belt replaces MerCruiser part # 46-8M0122655. Imported.

Replacement Seawater Pump For Mercruiser Gen 7 replaces MerCruiser part # 46-8M0118062. Imported.

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.