Hardin Marine

6-Rib Serpentine Crankshaft Pulley for Big Block Chevy (Mercury HP500 Engine Spacing), Polished

These are billet crankshaft pulleys that are CNC precision machined from 6061 T-6 billet aluminum. 5-1/2" Diameter, 1-3/4" thick

7" Single Grip Billet Aluminum Grab Handle - Each

Hardin Marine offers this popular grab handle constructed from billet aluminum in both a single hand 5" and 7" versions and a dual hand 10"version. Both handles feature blind tapped holes allowing them to be mounted with no hardware exposed. These handles work great in conjunction with the Hardin Marine billet vents.

*Note- These grab handles are 9" long with 7-1/4" bolt centers

See what each of our powder-coated finishes (both flat and glossy) look like under different lighting here!

750 Gallon Per Hour Pump

These Bilge Pumps are made in America, and are of top quality These pumps meet all necessary USCG requirements and are tested and specified by over 200 boat manufacturers.

750 GPH Cartridge Bilge Pump

Bilge pump cleaning and maintenance no longer call for complete disassembly. You can now leave the pump casing attached to both the boat and the hoses – assuming you own one of SPX Johnson Pump’s cartridge bilge pumps. Cartridge bilge pumps from SPX Johnson Pump can be removed for cleaning or replacement without the use of a single tool. Lift a tab on the top, give the cartridge a twist and pull it out; that’s all there is to it. The cartridge contains an all-in-one motor/impeller unit with no loose parts. The cartridge line is a further development of SPX Johnson Pump’s acclaimed bilge pumps, which have received highest ratings in many different independent tests over the years.

Features & Benefits
• All-in one motor/impeller unit
• No tools needed for maintenance
• Extremely energy efficient
• Water cooled motor for long service life
• Five models for fifferent capacity needs
• Can be equipped with a float switch for automatic operation
• Meets the strict international standard, ISO 8849 Marine
• Made in the USA

Water Cooled For Extended Service
The cartridge pumps are manufactured in the United States and the new line encompasses five compact pumps, each for a different capacity need. All of them use remarkably little electricity for the amount of water they pump. Their improved, more efficient motors also provide increased service life, thanks in part to an ingenious solution which circulates the discharge water around the motor for cooling.

Oil Cooler Cover - 8 Plate Cast Aluminum (356-T6) 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

8 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

8 Plate Stainless Steel Port Oil Cooler With Cast Aluminum Mercury Style Cover Kit

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. 8 Plate Cooler rated up to 900 HP.

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

8 Plate Stainless Steel Starboard Oil Cooler With Cast Aluminum Mercury Style Cover Kit

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. 8 Plate Cooler rated up to 900 HP.

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

8 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. 8 Plate Cooler rated up to 900 HP.

8" OD x 3" Tall Stainless Arrestor -5-1/8" Flange

These units feature large 8" OD construction. The large diameter gives the flame arrestor the ability to pass more air through it than the small units above, making this the choice of boaters seeking more power from their engines. These units also feature 3" tall mesh flame suppression screens assuring your safety. These units are cannot be disassembled. Overall height 3 3/4"

8" OD x 3-3/4" Tall Aluminum Arrestor - 5-1/8" Flange

These units feature large 8" OD construction. The large diameter gives the flame arrestor the ability to pass more air through it than the small units above, making this the choice of boaters seeking more power from their engines. These units also feature 3" tall mesh flame suppression screens assuring your safety. These units are cannot be disassembled.

Mayfair By Hardin Marine Helms - 8" Standard Steering Post Assembly

The construction of these race inspired billet aluminum and stainless steel helms feature an adjustable slip collar to accommodate different dash thicknesses while providing the ultimate in finished appearance.  These steering posts bolt directly to a Char-Lynn hydraulic helm.  Available in a dual steering wheel bolt pattern (Momo or Dino) or a conventional 3-bolt pattern.  Length is from the dash to the steering wheel mounting flange based on a 1" thick dash. Center steering wheel cover sold separately.

Polished Stainless Steel Flame Arrestor - 5-1/8" Flange
8" OD x 2" Tall (No Vent Tubes)

These flame arrestors feature a stainless mesh style. USCG approved construction. We have units designed to fit standard 5-1/8"(std Holley 4150) carburetor necks. Overall height is 2 3/4".
While outside dimensions range to accommodate many needs larger diameter units flow much more air on performance applications.

**NOTE VENT TUBES SOLD SEPARATELY**

8-3/4"Billet Aluminum Euro Style Handle - Each

Size of Handle based on Bolt Hole - to - Bolt Hole

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 10" long with 8-3/4" bolt centers

See what each of our powder-coated finishes (both flat and glossy) look like under different lighting here!

We Offer the most complete line of chrome plated and custom fabricated stainless steel fittings available anywhere. All of these fittings are sure to simplify your plumbing job and add a tasteful finishing touch.

We Offer the most complete line of chrome plated brass and custom fabricated stainless steel fittings available anywhere. All of these fittings are sure to simplify your plumbing job and add a tasteful finishing touch.

We Offer the most complete line of chrome plated brass and custom fabricated stainless steel fittings available anywhere. All of these fittings are sure to simplify your plumbing job and add a tasteful finishing touch.

We Offer the most complete line of chrome plated brass and custom fabricated stainless steel fittings available anywhere. All of these fittings are sure to simplify your plumbing job and add a tasteful finishing touch.

We Offer the most complete line of custom fabricated stainless steel fittings available anywhere. All of these fittings are sure to simplify your plumbing job and add a tasteful finishing touch.

We Offer the most complete line of chrome plated brass and custom fabricated stainless steel fittings available anywhere. All of these fittings are sure to simplify your plumbing job and add a tasteful finishing touch.

9-Bolt Billet Aluminum Steering Wheel Adapter For Formuling Pattern

• Made from Billet Aluminum and powder-coated
• Adapter is 4-1/4" in Diameter and 1" Tall
• Designed to fit the 9-bolt steering wheels made by Formuling, Grant, and others
• Features a 3-bolt mounting flange and 9-bolt steering wheel mount
• Each adapter includes a billet center cap which fits 3" cap hole
• Each adapter is supplied with stainless steel hardware

Need help installing your new adapter? Check out this handy tutorial!

See what each of our powder-coated finishes (both flat and glossy) look like under different lighting here!

• For use with Single or Dual Actuator.
• Transfers the electric load from your dash accessories to the accelerator box, increasing the total voltage to the hatch actuator is greatly increased.
• Accelerates hatch opening and closing.

Adjustable EFI/MPI Flow Command Regulator - 1993-98 MerCruiser 454/502 EFI Systems

Hardin Marine just added the MerCruiser 454/502 EFI Systems application to our line of high performance Flow Command adjustable fuel flow modifiers. The billet aluminum Flow Command is designed specifically for stock or modified 454/502 EFI systems. The Flow Command allows modification of the fuel flow rate to properly tune the air flow ratio. Ideal for use with high flow exhausts and intakes, the Flow Command incorporates these exclusive features:

• Bolt-on adjustable modifier for stock fuel regulators
• 6061-T6 billet aluminum case, CNC machined
• Allows pressure adjustments from 25 to 65 PSI
• Machined to exacting tolerances

Adjustable Fuel Level Sender

• For use with 240-33 ohm gauges
  • (240 ohm empty and 33 ohm full)
• Adjustable and can be tailored to most fuel tanks.
• Most common type of fuel level sender in production style boats today.
• Standard 5 Hole mount.
• For Tanks 6" to 24" deep.

Adjusting Bracket for Hardin Marine Multi Stage Sea Pumps