Hardin Marine

Universal Engine Harness for use in multiple engine applications. The wires are 6' long and do not have any terminals on the engine ends.

Note: Uses 14 AWG wire

Universal Engine Harness w/ Solenoid Kit for use in multiple engine applications. The wires are 6' long and do not have any terminals on the engine ends.

Note: Uses 14 AWG wire

Universal Mercury Plug Harness 20 FT (Male Plug)

This plug is for use when building a boat harness. They are designed to plug into a Mercury engine harness. This is a perfect start for the handy do-it-yourselfer. This universal style harness will provide connections for power, ignition and sender wires for the engine. Additional wiring is required to complete a factory style harness.

Note: Uses 16 AWG wires, red and black wires are 10 AWG.

• Universal Chrome Coil Bracket.
• Easy mounting of most original and aftermarket coils.
• Secure & attractive mount in any boat.

Upper Port Side Power Steering Mounting Bracket Assembly - BBC Head Mount

This power steering mounting bracket is designed for a upper port side mount on big block Chevrolet engines.  This heavy duty aluminum bracket is anodized black for corrosion protection (Note: picture shows satin finish).  This bracket accepts most popular GM power steering pumps and is supplied with the necessary mounting hardware.

Upper Port Side Power Steering Mounting Bracket Assembly - BBC Head Mount for Hardin Closed Cooling

This power steering mounting bracket is designed for a upper port side mount on big block Chevrolet engines.  This heavy duty aluminum bracket is anodized black for corrosion protection (Note: picture shows satin finish).  This bracket accepts most popular GM power steering pumps and is supplied with the necessary mounting hardware.

Upper Starboard Side Power Steering Mounting Bracket Assembly - Fits B/B Chevrolet

This power steering mounting bracket is designed for a upper starboard side mount on big block Chevrolet engines.  This heavy duty steel bracket is powder coated black for corrosion protection.  This bracket accepts most popular GM power steering pumps and is supplied with the necessary mounting hardware.

Valve Cover Breather Vent -20 AN for KE 2 Piece Valve Covers

Here you will find the components used in the popular Keith Eickert2-piece valve covers. These are polished Stainless Steel.  Both seal with an o-ring. 1" NPT internal thread and fits 1-1/2" Breathers

Valve Cover Oil Baffle

• Fits 620-154022 and 755-8404

Double Seal Prop Shaft Stuffing Box (For 1" or 1-1/8" Shafts Only)

Machined from Billet Aluminum, this stuffing box incorporates double neoprene seals. Water may be discharged into the stuffing box, further lubricating the aqua lube bearing insert.  For 1"  or 1-1/8" shafts only. 1/8" NPT water discharge port .

Vertical Low Head Mount HP4 Filter Head Bracket for Big Block Chevrolet - Black

This is the perfect vertical mount solution that the industry has been looking for now for years. A bracket that clears Standard Bravo exhaust tail pipes yet keeps the filter easily accessible from the rear side of the engine. A Stainless Steel oil filter head can be mounted conveniently in a vertical upward layout or vertical downward configuration. The 6061-T6 billet aluminum bracket also features a engine lifting ring located for service needs.The bracket can be mounted on the front or rear of the engine to the factory cylinder head mounting holes(3/8") and is supplied with aluminum and stainless steel mounting hardware. The filter head accept popular GM oil filters HP4 or Moroso #2246

Vertical Low Head Mount HP4 Filter Head Bracket for Big Block Chevrolet - Polished

This is the perfect vertical mount solution that the industry has been looking for now for years. A bracket that clears Standard Bravo exhaust tail pipes yet keeps the filter easily accessible from the rear side of the engine. A Stainless Steel oil filter head can be mounted conveniently in a vertical upward layout or vertical downward configuration. The 6061-T6 billet aluminum bracket also features a engine lifting ring located for service needs.The bracket can be mounted on the front or rear of the engine to the factory cylinder head mounting holes(3/8") and is supplied with aluminum and stainless steel mounting hardware. The filter head accept popular GM oil filters HP4 or Moroso #2246

Vertical Mount Thermostat Filter Head - Black

Maintaining proper engine oil temperature has become critical to the success or failure of today’s performance marine engines. Prolonged use of marine engines in conditions where oil cannot reach its optimum working temperatures will result in sludge formation and crankcase dilution which leads to excessive wear especially in the cylinder bores and bearing surfaces. A thermostat assembly combats this by permitting 90% of the engines oil to bypass the cooler during warm up. The balance of the oil flow is allowed to flow through the cooler maintaining constant pressure and preventing air pockets while eliminating cold oil shock. This reduces scuffing and premature wear and inhibits engine blow-by. As engine oil temperature reaches its optimum operating temperature moisture and impurities that often cause a milky condition are eliminated.

Vertical Mount Thermostat Filter Head - Polished, Big Block Chevy Cylinder Head Mount

Maintaining proper engine oil temperature has become critical to the success or failure of today’s performance marine engines. Prolonged use of marine engines in conditions where oil cannot reach its optimum working temperatures will result in sludge formation and crankcase dilution which leads to excessive wear especially in the cylinder bores and bearing surfaces. A thermostat assembly combats this by permitting 90% of the engines oil to bypass the cooler during warm up. The balance of the oil flow is allowed to flow through the cooler maintaining constant pressure and preventing air pockets while eliminating cold oil shock. This reduces scuffing and premature wear and inhibits engine blow-by. As engine oil temperature reaches its optimum operating temperature moisture and impurities that often cause a milky condition are eliminated. Does not include fittings.

2" Volt Gauge - White, Black or Stainless

• Operating range of 10 to 16 volts Bold,
• Clear dials, white light bulb, and a red needle
• Non-corrosive hardware Gasket sealed lens and bezel to prevent fogging
• Plastic body
• Domelux Technology Lens
• 2 1/16 hole size, Outer diameter 2 5/16
• Not Designed to be used with Diesel Engines.
• NOTE: This older style gauge matches 2018 and earlier model Hardin Gauges

Need help measuring your gauges so you know what to look for when you finally upgrade to a more polished set? Check out this handy tutorial!

Water Inlet Crossover Kit for GM LS Engines

These new adapters and crossover tubes allow easy installation of a remote mounted electric water pump on the GM LS engine. These billet aluminum block adapters feature (4) -12 AN O-ring female ports for routing water to a remote mounted electric water pump. The 1/8" NPT Port can be used to connect to the steam tube plumbing.

• Constructed of 316L Stainless Steel.
• -10 AN Divider with 3/8" NPT Bypass
• Fits 8-71 thru 14-71 TBS and B&M 250 and 420 superchargers.
• Specially designed for V8 Chevrolet engine applications using superchargers.
• Includes bolts, and gaskets.

• Constructed of 316L Stainless Steel.
• -12 AN Divider with 3/8" NPT Bypass.
• Fits 8-71 thru 14-71 TBS and B&M 250 and 420.
• Specially designed for V8 Chevrolet engine applications using superchargers.
• Includes bolts, and gaskets.

Water Outlet Hose for LS1 - LS3 Thermostatic Cooling System