Hardin Marine

1-1/4" NPT HO Competition Dual Strainer Basket Sea Strainer
Your Price:
$1,199.99

1-1/4" NPT HO Competition Dual Strainer Basket Swirl-Away Sea Strainer

620-913206

  • 316L premium stainless steel construction.
  • Cone shaped dual screen basket provides even greater straining area.
  • Basket is removable for easy cleaning.
  • O-Ring sealed Lexan lid (not cheap plastic)
  • Lid is removed by simple one hand grip knob. No wingnuts!
  • Lid will withstand 100 PSI pressure spikes.
  • Kit includes polished billet aluminum swirl lid cover!
  • 1-1/4" NPT inlets and outlets.
  • 3/4" NPT pressure relief port.
  • 360 degree swivel mounting bracket for maximum mounting flexibility.
  • Due to differences in mounting surfaces, hardware for mounting strainer not included.
  • See Additional Info for extended product details.
  • Find Replacement Parts Here

1-1/4" NPT HO Swirl-Away High Performance Sea Strainer
Your Price:
$899.99

1-1/4" NPT HO Swirl-Away High Performance Sea Strainer

620-913205

  • 316L premium stainless steel construction.
  • Cone shaped screen basket provides even greater straining area.
  • Basket is removable for easy cleaning.
  • O-Ring sealed Lexan lid (not cheap plastic)
  • Lid is removed by simple one hand grip knob. No wingnuts!
  • Lid will withstand 100 PSI pressure spikes.
  • 1-1/4" NPT inlets and outlets.
  • 3/4" NPT pressure relief port.
  • 360 degree swivel mounting bracket for maximum mounting flexibility.
  • Due to differences in mounting surfaces, hardware for mounting strainer not included.
  • See Additional Info for extended product details.
  • Find Replacement Parts Here

1-1/4" NPT Stainless Steel Pipe Plug
Your Price:
$36.99

1-1/4" NPT Stainless Steel Pipe Plug

540-223001

1-1/4" NPT Stainless Pipe Plug

1-1/4" NPT Stainless Steel Water Shut-Off Valve
Your Price:
$124.99

1-1/4" NPT Stainless Steel Water Shut-Off Valve

620-913315

1-1/4" Stainless Steel Full-Port Ball Valve

FNPT by FNPT Threaded Ends, 2-Piece Body, Full-Port Design with lockable handle, 2000 PSI rated, 316 Stainless Steel Body, Teflon (PTFE) Seals and Seats.


1-1/4" NPT Triple Common Inlet/Outlet Sea Pump Adapter
Your Price:
$429.99

1-1/4" NPT Triple Common Inlet/Outlet Sea Pump Adapter

625-4160

1-1/4" NPT Triple Common Inlet/Outlet Sea Pump Adapter

  • 316L Stainless Steel
  • 1-1/4" NPT

At last modern technology has allowed us to again advance from a square block to an actual tuned water inlet manifold. These new cast and polished 316L Stainless Steel inlets feature staggered length and size high flow radiused inlet tubes that provide the ultimate in equal distribution provided by the massive 1-1/4"npt connection. Equal distribution to each chamber has long been a challenge that until now with modern precision flow technology and data acquisition monitoring was unavailable. Careful engineering was put into the design of both  the vacuum and pressure fed characteristics, The design and configuration of the inlet allows a easy access. The inlet is tucked in tight to allow for added clearance on many applications such as Catamaran style boats.these inlets are unmatched by anything available today in modern marine cooling system. 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.


1-1/4" Pressure Relief Valve Fitting For Inline Use, 1/2" NPT
Your Price:
$39.99

1-1/4" Pressure Relief Valve Fitting For Inline Use, 1/2" NPT

128-5001

1-1/4" Pressure Relief Valve Fitting For Inline Use, 1/2" NPT

This valve should be used in conjunction with the 128-5000 pop off valve.


1-1/4" Push-On Hose Adjustable Mount Thru-Hull Water Pick-Up
Your Price:
$194.99

1-1/4" Push-On Hose Adjustable Mount Thru-Hull Water Pick-Up

410-1080

  • Constructed of 316L Stainless Steel.
  • 1-1/4" Push on Hose.
  • 6" Length
  • Scoops water through a 1-1/4" O.D stainless tube that can be adjusted vertically
  • Pick-up may be mounted wherever you want it
  • Features an O-Ring Seal.

1-1/4"NPT Swirl-Away Sea Strainer With Built-In Fluid Cooler
Your Price:
$1,199.99

1-1/4"NPT Swirl-Away Sea Strainer With Built-In Fluid Cooler

620-913203

  • 316L premium stainless steel construction.
  • Cone shaped screen basket provides even greater straining area.
  • Basket is removable for easy cleaning.
  • O-Ring sealed Lexan lid (not cheap plastic)
  • Lid is removed by simple one hand grip knob. No wingnuts!
  • Lid will withstand 100 PSI pressure spikes.
  • Dual 1-1/4" NPT inlets and outlets.
  • 3/4" NPT pressure relief port.
  • 360 degree swivel mounting bracket for maximum mounting flexibility.
  • Due to differences in mounting surfaces, hardware for mounting strainer not included.
  • 1/2" NPT Stainless Steel fluid cooling coil at the bottom of the strainer.
  • See Additional Info for extended product details.
  • Find Replacement Parts Here

1-1/8" Marine Bilge Hose

Your Price:
$1.29

1-1/8" Marine Bilge Hose

100-120-1186 + Option(s)

1-1/8" I.D Bilge Hose - Available in Black or White

This hose is designed to go from your bilge pump to your water dump It is flexible and easy to route.

Water bilge hose is sold by the foot, i.e add quantity of 6 for 6 ft. of hose.

Hose comes in maximum of 50 feet sections. Please specify if you want sections cut into specific lengths when ordering over 50 feet.


3/4" Marine Bilge Hose

Your Price:
$1.95

1-1/8" Pro-Flex Marine Bilge Hose

100-1118 + Option(s)

1-1/8" I.D Pro-Flex Marine Bilge Hose

This hose is designed to go from your bilge pump to your water dump It is flexible and easy to route.

  • 2.5:1 RATIO FROM FULLY EXTENDED TO COLLAPSED
  • AVAILABLE IN CONTINOUS PIECES UP TO 75FT
  • RETAINS USER'S DESIRED SHAPE
  • SPACE SAVER AND FLEXIBILITY
  • LIGHTWEIGHT AND CRUSH PROOF
  • PUNCTURE RESISTANT ABRASION RESISTANT AND MINIMUM FLEX STRESS
  • PROPRIETARY POLYOLEFIN COPOLYMER FORMULATION BLENDING PROCESS THAT ENSURES PRODUCT CONSISTENCY
  • CUSTOM COLORS AVAILABLE SOON - CURRENTLY ONLY BLACK AVAILABLE
  • TEMP RANGE -40 TO 160 F
  • MADE IN USA

Water bilge hose is sold by the foot, i.e add quantity of 6 for 6 ft. of hose.


12 Inch Stroke Electric Hatch Actuator
Your Price:
$629.99

12 Inch Stroke Electric Hatch Actuator

620-920120

  • 12" Stroke.
  • Overall Length Closed is 19-7/8".
  • Strong eyelet mount allows a wide range of angles for easy installation.
  • Marine grade stainless steel housing
  • Sealed precision die cast housing.
  • 12 VDC
  • Safe working dynamic load limit of 400 lbs.*
  • Static Limit of 500 lbs.*
  • Heavy duty, sealed ball bearing motor allows for locking of hatches, won’t open at high speeds
  • Replaces Livorsi SSA12 actuator.
  • NOTE: Please verify your dimensions. Actuators that have been installed are NON returnable!

*Static loading refers to the load on an actuator when it is in a fixed or stationary condition. The static load capacity of an actuator refers to how much weight the actuator can safely hold without back driving or causing damage. Dynamic load is the load the actuator sees when it is powered and extending or retracting. The dynamic load capacity of an actuator refers to how much the actuator can push or pull. Placing an actuator closer to the hatch hinge point will require the actuator to work harder than installing it further out.


12 Point Zinc Header Bolt for Cyclone Exhaust
Your Price:
$2.00

12 Point Zinc Header Bolt for Cyclone Exhaust

900-37C100HBZ

12 Point Zinc Header Bolt for Cyclone Exhaust, 3/8" Bolt, 1" Tall

12Volt 3-Wire Trim Pump Motor
Your Price:
$130.00

12 Volt 3-Wire Trim Pump Motor

137-8276

12 Volt 3-Wire Trim Pump Motor

    Fits:
  • Merc: 17649T, 17649A1, 87828, 891736T
  • API: PTS01NM-2
  • Mallory: 9-18207
  • Sierra: 18-6772

We carry a selection of new trim pumps for your outdrives, trim tabs and hatch rams. Floor mount trim pump for the stock stern drive package and high performance mount for the offshore racer. We also stock new replacement reservoir tanks and electric trim motors for replacement. These are what the factory uses, just not the factory price.


12" Billet Aluminum Euro Style Grab Handle

Your Price:
$105.99

12" Billet Aluminum Euro Style Grab Handle

125-EH500 + Option(s)

12" Billet Aluminum Euro Style Handle - Each

We've got them - the latest in billet handles. These Euro Styled Handles feature smooth contoured shapes and edges. These units use the same mounting holes as the traditional handles and vents so they are perfect for a new boat building project or they will retro-fit the traditional handles and vents manufactured by Hardin Marine.

*Note- These grab handles are 13-1/2" long with 12" bolt centers.  Internal threads are 5/16-18"


12" High Performance Model MH120S Trim Tab Kit

Starting From:
$2,799.99
This Part has options, please click the button below to order.

12" High Performance Model MH120S Trim Tab Kit

137-8100 + Option(s)

  • Made from high strength 535 Aluminum Magnesium alloy.
  • All 316 Stainless Steel hardware.
  • 1-1/2" Piston bore.
  • End of the tab dimension is 9" wide
  • Two way hydraulics for improved performance.
  • Zinc Anodes to prevent corrosion.
  • Includes trim pumps with bulkhead brackets.
  • Include Trim Hoses.
  • Includes Trim Switch Panel.
  • For 20-25 ft. Boat Lengths
  • Includes installation hardware for a 33c cable, for mechanical trim indicator systems.
  • NOTE: Shown in White, however Tabs are available in Black or White

12" High Performance Model MH120S Trim Tab Kit w/Electronic Sensors

Starting From:
$3,449.99
This Part has options, please click the button below to order.

12" High Performance Model MH120S Trim Tab Kit w/Electronic Sensors

137-8102 + Option(s)

  • Made from high strength 535 Aluminum Magnesium alloy.
  • All 316 Stainless Steel hardware.
  • Includes Electronic Sensors for the Mayfair LED Trim Indicator Systems
  • 1-1/2" Piston bore.
  • End of the tab dimension is 9" wide
  • Two way hydraulics for improved performance.
  • Zinc Anodes to prevent corrosion.
  • Includes trim pumps with bulkhead brackets.
  • Include Trim Hoses.
  • Includes Trim Switch Panel.
  • For 20-25 ft. Boat Lengths
  • NOTE: Shown in White, however Tabs are Standard Black. White available by special order.
  • NOTE: In order to complete this system to your Garmin, or other Smartcraft / NMEA2000 compatible screen you must purchase the 137-8659 adapter box.
  • NOTE: If not using a Smartcraft / NMEA2000 type screen display above, you must purchase a corresponding Mayfair Indicator System to display the position readout from your trim tabs.

12" High Performance Model MH120S Trim Tabs

Starting From:
$2,475.99
This Part has options, please click the button below to order.

12" High Performance Model MH120S Trim Tabs

137-8085 + Option(s)

  • Made from high strength 535 Aluminum Magnesium alloy.
  • All 316 Stainless Steel hardware.
  • 1-1/2" Piston bore.
  • End of the tab dimension is 9" wide
  • Two way hydraulics for improved performance.
  • Zinc Anodes to prevent corrosion.
  • For 20-25 ft. Boat Lengths
  • Includes installation hardware for a 33c cable, for mechanical trim indicator systems.
  • NOTE: Shown in White, however Tabs are Standard Black. White and other colors available by special order.

12" High Performance Model MH120S Trim Tabs w/ Electronic Sensor

Starting From:
$2,699.99
This Part has options, please click the button below to order.

12" High Performance Model MH120S Trim Tabs w/ Electronic Sensor

137-8086 + Option(s)

  • Made from high strength 535 Aluminum Magnesium alloy.
  • All 316 Stainless Steel hardware.
  • Includes Electronic Sensors for the Mayfair LED Trim Indicator Systems
  • 1-1/2" Piston bore.
  • End of the tab dimension is 9" wide
  • Two way hydraulics for improved performance.
  • Zinc Anodes to prevent corrosion.
  • For 20-25 ft. Boat Lengths
  • NOTE: Shown in White, however Tabs are Standard Black. White and other colors available by special order.
  • NOTE: In order to complete this system to your Garmin, or other Smartcraft / NMEA2000 compatible screen you must purchase the 137-8659 adapter box.
  • NOTE: If not using a Smartcraft / NMEA2000 type screen display above, you must purchase a corresponding Mayfair Indicator System to display the position readout from your trim tabs.

140 Degree Brass Hi-flow Marine Thermostat
Your Price:
$39.99

120 Degree Brass Hi-flow Marine Thermostat

540-160110

120 Degree Brass Hi-flow Marine Thermostat

These hi-flow brass marine thermostats feature air relief ports. This enables relief of the steam pockets caused by cold water entering a heated engine block. Their hi-flow design helps to maintain a constant operating temperature. Don't trust your engine to anything less!


120 Degree Brass Hi-Flow Marine Thermostat - For 496/525 Engines
Your Price:
$69.99

120 Degree Brass Hi-Flow Marine Thermostat - For 496/525 Engines

540-160112

120 Degree Brass Hi-Flow Marine Thermostat - For 496/525 Engines

These Hi-Flow brass marine thermostats feature air relief parts. This enables steam pockets caused by cold water entering a heated engine block. Their hi-flow design help to maintain the most constant temperature. Don’t trust your engine to anything less.


13 Plate Billet Aluminum (6061-T6) Oil Cooler Cover, Starboard Side
Your Price:
$299.99

13 Plate Cast Aluminum Oil Cooler Cover, Starboard Side

755-8007

Oil Cooler Cover - 13 Plate Cast Aluminum Oil Cooler Cover, Starboard Side For KE or Mercury Flywheel Housing

These oil cooler covers are required for use when a plate style oil cooler is used with a Mercury Racing flywheel housing. Each cover is hard anodized for corrosion resistance.

All of our bravo box style coolers an d remote style boxed coolers use a replacement gasket part #625-8018


13 Plate Cast Oil Cooler Cover, Port Side
Your Price:
$299.99

13 Plate Cast Oil Cooler Cover, Port Side

755-8005

13 Plate Cast Oil Cooler Cover, Port Side for KE or Mercury Flywheel Housing

These oil cooler covers are required for use when a plate style oil cooler is used with a Mercury Racing flywheel housing.  We offer multiple styles in both cast 356-T6 aluminum or 6061-T6 billet aluminum.  Each cover is hard anodized for corrosion resistance.

All of our bravo box style coolers an d remote style boxed coolers use a replacement gasket part #625-8017


13 Plate Stainless Steel Oil Cooler Kit (Port)
Your Price:
$649.99

13 Plate Stainless Steel Oil Cooler Kit (Port)

755-8020

13 Plate Stainless Steel Oil Cooler With Cast Aluminum Mercury Style Cover Kit (Port)

Once again these kits are designed for your ordering convenience. Each kit consists of a single oil cooler, cover plate (choice of stainless or billet aluminum), billet jam nuts, bolts and gaskets.

All of our bravo box style coolers an d remote style boxed coolers use a replacement gasket part #625-8017


13 Plate Stainless Steel Oil Cooler Kit (Stbd)
Your Price:
$649.99

13 Plate Stainless Steel Oil Cooler Kit (Stbd)

755-8022

13 Plate Stainless Steel Oil Cooler With Cast Aluminum Mercury Style Cover Kit (Starboard)

Once again these kits are designed for your ordering convenience. Each kit consists of a single oil cooler, Cast aluminum oil cooler cover plate, billet jam nuts, bolts and gasket.

All of our bravo box style coolers an d remote style boxed coolers use a replacement gasket part #625-8018


13 Plate Stainless Steel Xtreme Duty Multi-Plate Oil Cooler
Your Price:
$395.99

13 Plate Stainless Steel Xtreme Duty Multi-Plate Oil Cooler

625-8012

13 Plate Stainless Steel Xtreme Duty Multi-Plate Oil Cooler

Our parallel multi-plate stainless steel oil coolers are the very best cooler available on the market today. Plate style coolers are unmatched in heat transfer providing maximum temperature reduction consistently while offering little to no pressure drop associated in other designs. The stainless construction offers superb corrosion resistance.


1-3/8" Clamp-On Valve Cover Breather - No Shield
Your Price:
$19.99

1-3/8" Clamp-On Valve Cover Breather - No Shield

620-70154

1-3/8" Clamp-On Valve Cover Breather - No Shield (Each)

These breathers feature maximum flow and protection from airborne elements. They are used on most Hardin Marine valve cover systems. The breather is washable providing for easy maintenance.


1-3/8" Dual Baffle Weld-In Breather Extension
Your Price:
$19.99

1-3/8" Dual Baffle Weld-In Breather Extension

620-68802

1-3/8" Dual Baffle Weld-In Breather Extension

Made from Aluminum.

Length: 3.00"