Hardin Marine

Billet Serpentine Idler Pulleys - Merc EFI Ribbed Idler Pulley 4.42" Diameter

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

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

 MerCruiser High Speed Bravo 1990-newer

Nose Cones are recommended on boats running in the 80 MPH range to enhance propeller efficiency and eliminate blow out.  Propeller blow out is encountered when water separates from the gear case to the point where the distance is equal to or greater than the radius of the propeller MPH gains can be 2 to 6 MPH with the right propeller set up.  Bravo castings are for 1990 and later.  All nose cone castings are 6063-T6 and molded to a glove like fit.  This enables it to be installed with epoxy putty. Does not fit Bravo 2 or 3 drives.

Mercruiser KM Control Cable

Direct replacement cables for Mariner, Mercruiser and Mercury engines.

This is an all new high performance power steering pump designed as a replacement for most mercury and mercruiser style steering pumps. This pump features numerous improvements over the factory unit.  These pumps produce an increase of pressure thus aiding in low speed steering response.

 Why is this pump better than a OEM stock pump?

• The bearing snout is machined to replace the stock bronze bushing with #203 needle bearing.
• The shaft is machined from 4140 tool steel and is heat treated to 75/80 Rockwell. Will not break if you dead head the pump.
• The shaft has dual thrust washers to insure control forward and rear movement when under load.
• The main boring housing is machined to a larger diameter to clean up wore surface. Larger ring, rotor and vanes are installed.
• The main oil passage is enlarge for greater flow
• Flow valve bore is machined larger. Unit comes with larger valve and spring.
• Our pumps flows 4-3/4 to 5-1/4 GPM. Double the output than a stock Saginaw "P" series pump.
• 1500 PSI max
• Sold Complete with black housing, pump, vented cap,  3/8" barb inlet,  5/8" - 18 female inlet, press on pulley or flange not included, no keyway

MerCruiser Style Wiring Pigtail - Mercury Plug, Instrument Side 12"

This plug is for use when building a boat harness. They are designed to plug into a Mercury engine harness. You can then connect your wiring and run it to your necessary gauges, switches, etc.

Note: Uses 14 AWG wire, the large red power wire and large black ground wire is 10 AWG wire.

Mercruiser Y-Pipe Insert Caps

These caps are commonly used when switching to a thru-hull exhaust system when the y-pipe is no longer needed to route the exhaust. Instead of pulling the engine to remove the y-pipe you can now easily slip these in and clamp them down, easy as that. Oval Shaped for Mercruiser applications. Made of stainless steel these caps will be good for years to come. Sold in pairs.

MerCruiser, Cobra, Yamaha, PMGT Starter Clockwise Rotation

Fits 14-1/4" flywheel and offset bolt pattern. New permanent magnet gear reduction. Original Mercury numbers - 50-812428A3,50-812604A2, 50-822330A2, 50-863007A1

BRAND NEW STARTERS - ALL UNITS MEET OR EXCEED OEM SPECIFICATIONS
Please Note: Direction of rotation is determined as to viewing the starter from the drive end.

Mercury 1075 Two Stage -16 ORB Dual Common Inlet/Outlet Sea Pump Adapter - Replaces Mercury #842625

These components are designed to assist in the plumbing of your engine when using the Hardin Marine Multi-Stage sea pumps. A wide range of configurations can be created by using different inlet and outlet adapters. All of these components are polished stainless steel or hard anodized to resist harsh corrosive environments. Replaces Mercury OEM # 842625

Non-Standard port side trim sender and mount

Mercury Control 33C Adapter

This adapter kit connects 3300/33C style throttle & shift cables to OEM Mercury controls. Will not work with Mercury Gen II controls.

Mercury Fuel Filter Replacement (RF51)

The RF51 spin-on Fuel Filter utilizes FST’s exclusive FloMax™ low restriction, high efficiency filter media that filters down to 4 microns, and strips 99% free water.

• 100% Made in America • Size: O.D.: 11/16” (93.7mm) Height: 3-7/8” (98.4mm)
• Thread: 11/16-16
• Gasket/Seal: (attached) O.D. 2.834(72mm) I.D.: 2.462 (63mm) Thick 0.500 (5mm)
• Flow: 200 gallons per hour
• Filtering Effificiency: 4 Microns: FloMax™ exclusive cellulose (gasoline-methanol-ethanol compatible). Most competitors are in the 10-24 Micron range.
• Water Separation: FST’s exclusive, enhanced cellulose FloMax™ filter media strips/ separates water to a “quiet” zone for water and heavy contaminates to settle. Strips 99% of free water. Not water blocking and does not swell up, which can block the fuel flow.
• Burst: 250 psi

Impeller Rebuild Service Kit - For Gen 4, Gen 5/6, Rev. 1 Hardin Stainless Pumps - Mercury Replacement

This impeller kit is a rebuild service kit for the Hardin Marine stainless impeller housing 625-4178 and stainless pumps 625-4110 and 625-4118 . This kit comes with new wear plates , O-rings, and impeller. Rev. 1 Version for pumps manufactured up to 12/2012.

Which Rebuild kit do I need?

Rev. 1 pumps have a 1/8" drain plug in the rear housing and a slotted front wear plate.
Rev. 2 pumps have no drain plug and a solid front wear plate.

Mercury

This impeller kit is a rebuild service kit for the Hardin Marine stainless impeller housing 625-4178 . 

• (1)Impeller
• (2) Wear Plate
• O-rings

See here for individual replacement parts.

Mercury Outboard Adapter

Mercury Outboard Kit (1965-date), Mercury Stern Drive Kit (all) Use with two 3300 cables. Allows quick installation and maximum adjustment at engine. Package includes throttle and shift adapters for one engine. Individually packaged. Adapts universal 3300/33C style 10-32 thread cables for use with Mercruiser I/O engines and Mercury outboards. Each kit connects 2 cables (shift and throttle) to 1 engine.

Mercury Racing 525 EFI, 600/662/700 SCI Series V8,  0.030" MLS Exhaust Gasket - Sold in Pairs

These gaskets are designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once insist on Hardin Marine extreme-duty gaskets. Quite possibly the last gasket you’ll ever need.

These MLS exhaust gaskets are ideal for both aluminum heads & cast iron heads as well as cast iron and aluminum blocks. The composition of MLS gaskets will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is required and by design promotes an even torque load across the sealing surface.

Sold in Pairs

Mercury Racing 700 Intercooler Hi-Flow Fitting Kit

This fitting kit replaces the stock fittings with larger higher flow fittings allowing better cooling performance. Fittings are -10 AN.