Hardin Marine

3/8" Copper Washer
Your Price:
$1.94

3/8" Copper Washer

90037SA-STCO

3/8" Copper Washer for Hardin or Mercruiser Gen 5/6 Sea Pumps

3/8" Marine Fuel Line Hose
Your Price:
$3.99

3/8" Marine Fuel Line Hose

100-350-0380

Marine Fuel Line Hose 3/8" I.D.

  • This is true USCG approved marine grade fuel hose
  • This is A-1 grade hose

Don't take any chances with your investment Use only marine grade hose.

Fuel line 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.


1/4" Marine Vent / Bilge Hose
Your Price:
$1.29

3/8" Marine Vent / Bilge Hose

100-150-0386

3/8" I.D Vent / Bilge Hose

This hose is commonly used for venting or bilge dump.

Vent / 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.


3/8" NPT Flexible Dipstick Kit
Your Price:
$29.99

3/8" NPT Hardin Marine Flexible oil dipstick

620-910492

3/8" NPT Hardin Marine Flexible oil dipstick

A unique flexible dipstick tube assembly allows easy access and a universal fit, making it easy to work around marine exhaust systems. The pan must have a pipe thread provision to work with this dipstick.

20" Long Tube


3/8" NPT Stainless Steel Pipe Plug
Your Price:
$11.99

3/8" NPT Stainless Steel Pipe Plug

540-222997

316L Stainless Steel Fitting
3/8" NPT Pipe Plug

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.


3/8" Stainless Eyelet
Your Price:
$10.99

3/8" Stainless Eyelet

950-42175

3/8" Stainless Eyelet

These are high grade stainless eyelets in 3/8" diameters. The eyelets can also be used on the transoms or bow of boats for tie downs or tow hooks. 3" Thread Length. 4-1/2" Overall length. 1-1/2" pin center to center.


3/8" Exhaust Log Manifold Stud Kit
Your Price:
$49.99

3/8" Stainless Steel Exhaust Log Manifold Stud Kit

620-53105

3/8" Stainless Steel Exhaust Log Manifold Stud Kit

We offer a full selection of manifold bolt kits to fit most popular marine engines.  These kits come complete with (16) studs, nuts and washers. Studs are 1-3/4" Long.


3/8"-16 x 3/4" Stainless Allen Head Bolt
Your Price:
$1.99

3/8"-16 x 3/4" Stainless Allen Head Bolt

900-37-C075SHS

Replacement Bolt 3/8"-16 x 3/4" Stainless Allen Head

Used in many applications including Hardin Sand Strainers, Fuel Filters, Oil Filters, Thermostat Housings and more.


Gil Manifold 3" Exhaust Bolt
Your Price:
$1.75

3/8-16" x 4" Bolt

900-37C400HHS

3/8-16" x 4" Bolt. Used on Trim Tabs 

30 Ft. Boat Wiring Harness
Your Price:
$249.99

30 Ft. Boat Wiring Harness

620-08841

30 Ft. Boat Wiring Harness, Wired for Voltmeter and Mercury Style Cannon Plug

Wiring your boat does not have to be a hassle due to tangled wires, bad connections, and guess work. Poor wiring can ruin a boat. These boat harnesses use 275 degree, thermal crossed linked wire that will not kink and is abrasive resistant. Don’t take chances with your boat; trust the leader in marine wiring, Hardin Marine.

Note: Uses 14 AWG wire


302-351 Ford Windsor Valve Covers
Your Price:
$51.99

302-351 Ford Windsor Valve Covers

620-70751

302-351 Ford Windsor Valve Covers

These chrome plated steel valve covers feature a clean no-logo design. These are a great looking addition to any engine packag.e Not recommended in salt water applications. Sold in pairs.


302-351W Ford Stock Replacement Fuel Pump
Your Price:
$163.99

302-351W Ford Stock Replacement Fuel Pump

895-M6696

302-351W Ford Stock Replacement Fuel Pump

    Features:
  • Inlet Attachment: Female threads
  • Outlet Attachment: Female threads
  • 1976-93 Ford Marine 5.8L
This pump replaces your stock fuel pump and will provide years of trouble free service. High-performance flow (23 gph) with OE appearance and fit. They feature heavy-duty diaphragms, high-speed anti-float springs, full-flow valves, heat-treated levers & aluminum castings.

This Is A Block Mounted Fuel Pump


3-1/2" Angle Cut Exhaust Tip
Your Price:
$144.99

3-1/2" Angle Cut Exhaust Tip

410-281352

  • 3-1/2" Diameter.
  • Constructed of 316L Stainless Steel.
  • Tip includes internal flap.
  • Sold Each.
  • 45 Degree Angle Cut.
  • Use Silicone to seal to Transom.
  • Length 10-1/4", Flange to Inside End 5", Flange to Outside End 5-1/4".
  • The tips flange has an O.D 5-1/2".

3-1/2" Angle Cut Part-Time Transom Mounted Silencers
Your Price:
$499.99

3-1/2" Angle Cut Part-Time Transom Mounted Silencers

410-282351

3-1/2" Angle Cut Part-Time Transom Mounted Silencers

These silencers are 100% stainless steel and are perfect for both stock and slightly modified engines There are no moving parts and they come in a brilliant polished finish These silencers are called part-time because by simply removing one bolt per tip you can remove the slip-in silencers and have straight through exhaust Approximately an 8 to 10 decibel reduction is achieved with these silencers installed.

Available in your choice of straight or angle cut styles. All tips require a 4" mounting hole while providing the appropriate exhaust hose connection size.

Sold in pairs.


3-1/2" I.D Marine Water Certified Corrugated Exhaust Hose
Your Price:
$2.99

3-1/2" I.D Marine Water Certified Corrugated Exhaust Hose

100-252-3124

3-1/2" I.D Marine Water Certified Corrugated Exhaust Hose

This hose allows you to make only very slight bends due to its corrugated design used in extreme-duty applications. It has a reinforcing wire threaded through the wall to increase strength.

All exhaust hose is sold by the inch, i.e add quantity of 24 for 24 in. (2 ft.) of hose.

Hose comes in 12.5 feet sections. Specify if you want sections cut when ordering over 12 feet.

3-1/2" Marine Grade Hardwall Exhaust Hose
Your Price:
$2.99

3-1/2" Marine Grade Hardwall Exhaust Hose

100-250-3124

3-1/2" I.D Marine Grade Hardwall Exhaust Hose

This hose allows you to make only very slight bends due to its hardwall design used in extreme-duty applications. It looks exactly like the softwall hose except it has a reinforcing wire threaded through the wall to increase strength.

All exhaust hose is sold by the inch, i.e add quantity of 24 for 24 in. (2 ft.) of hose.

Hose comes in 12.5 feet sections. Specify if you want sections cut when ordering over 12 feet.


3-1/2" Marine Grade Soft Wall Exhaust Hose
Your Price:
$2.29

3-1/2" Marine Grade Soft Wall Exhaust Hose

100-200-3124

3-1/2" I.D Marine Grade Soft Wall Exhaust Hose

This is top quality soft wall exhaust hose It's pliable construction makes it easier to work with than hard wall hose.

All exhaust hose is sold by the inch, i.e add quantity of 24 for 24 in. (2 ft.) of hose.

Hose comes in maximum of 12.5 feet sections. Please specify if you want sections cut into specific lengths when ordering over 12 feet.


3-1/2" Extra Long Straight Cut Exhaust Tip
Your Price:
$139.99

3-1/2" Standard Straight Cut Exhaust Tip

410-281351

  • Constructed of 316L Stainless Steel.
  • 3-1/2" Diameter.
  • Straight end cut.
  • These tips include internal flaps.
  • These tips will also accept external Salisbury flappers.
  • Sold Each.
  • Length 9.13", Flange to Inside end 5", Flange to Outside end 4", Flange diameter is 5.5"
  • Use Silicone to Seal to Transom.

3-1/2" Straight Cut Part-Time Transom Mounted Silencers
Your Price:
$479.99

3-1/2" Straight Cut Part-Time Transom Mounted Silencers

410-282350

3-1/2" Straight Cut Part-Time Transom Mounted Silencers

These silencers are 100% stainless steel and are perfect forboth stock and slightly modified engines There are no moving partsand they come in a brilliant polished finish These silencers arecalled part-time because by simply removing one bolt per tip youcan remove the slip-in silencers and have straight throughexhaust Approximately an 8 to 10 decibel reduction is achieved with these silencers installed.

Available in your choice of straight or angle cut styles. All tips require a 4" mounting hole while providing the appropriate exhaust hose connection size.

Sold in pairs.


3-1/2" To 4" 316L Stainless Steel Inline Exhaust Reducer
Your Price:
$49.99

3-1/2" To 4" 316L Stainless Steel Inline Exhaust Reducer

410-354

3-1/2" To 4" 316L Stainless Steel Inline Exhaust Reducer

These simple inline exhaust reducers join 2 different size exhaust hoses, tips or tubes together. They are universal in design and measure 4" in length.

Sold each.


3-1/2" to 4" I.D. External Salisbury Flapper
Your Price:
$19.99

3-1/2" to 4" I.D. External Salisbury Flapper

810-EG-400

3-1/2" to 4" I.D. External Salisbury Flapper

These are excellent American-made flaps that will not curl like cheap import copies. These are a must for boats with a very close distance between exhaust ports and the water line Clamp is included. This flap has a 4" ID and must be cut down for 3-1/2" applications. Sold each.


3-1/2" Internal Butterfly Style Rubber Replacement Exhaust Flapper
Your Price:
$39.99

3-1/2" Internal Butterfly Style Rubber Replacement Exhaust Flapper

410-280172

3-1/2" Internal Butterfly Style Rubber Replacement Exhaust Flapper

These original equipment style rubber flaps are designed to replace missing or burned out flaps. They can also be easily retro-fitted to tips that were not originally equipped with flaps. Note: Flaps are recommended in all wet exhaust systems. Sold each.


3-1/4" O.D  Replacement Rubber Trumpet Tip Flapper
Your Price:
$9.99

3-1/4" O.D Replacement Rubber Trumpet Tip Flapper

610-1031R

3-1/4" O.D Replacement Rubber Trumpet Tip Flapper

These are the most common replacement flaps found in trumpet style exhaust tips. Each flap includes new mounting hardware. 7/8" spacing on the screw holes. Sold each.


316L Stainless Steel Exhaust Ring Flange
Your Price:
$35.99

316L Stainless Steel Exhaust Ring Flange

410-280184

316L Stainless Steel Exhaust Ring Flange

These Beautifully polished 316L Stainless steel exhaust ring flanges are 6" O.O by 4" I.D. They can be used as inner transom beauty rings to finish off the installation of your new Hardin Exhaust tips or 4" dry tail pipes. They are also perfect for manufacturing your own 4" exhaust tips. Sold Each.

316L Stainless Steel Quick Engine Flush Connector
Your Price:
$139.99

316L Stainless Steel Quick Engine Flush Connector

620-913300

316L Stainless Steel Quick Engine Flush Connector

Our engineering team has developed this attractive easy to use quick connect thru-hull flushing system. These 316L stainless steel flushing thru-hulls allow the quick connection of a garden hose to this fitting in mere seconds. While the opposite end of the thru-hull features a 1/2" NPT female connection that can be connected into the inlet side of your cooling system or sea strainer. When the garden hose is removed this unit looks like a simple thru-hull yet has a spring loaded internal check valve. Mounting Width: 3-15/16" Depth: 4-3/16"


3-3/4" Hide-A-Helm Steering Wheel Adapter
Your Price:
$549.99

3-3/4" Hide-A-Helm Steering Wheel Adapter

137-9455

3-3/4" Hide-A-Helm Steering Wheel Adapter

If you've been fortunate enough to see inside some of the most elite powerboats in the world toady such as Nor-Tec and Outerlimits, then you've probably noticed the ultra-cool dual switchable hidden helms they have. Hardin Marine developed this system with two thoughts in mind.
  First, dual helm steering systems up to now used two mounted steering posts fixed to both sides of the dash. When one wasn't being used it stuck out of the dash as a safety hazard similar to a human harpoon. By relocating the steering post beneath the surface of the dash and covering it with a smooth billet cap you now have a part that is worthy of existence on a million dollar boat.
  Secondly, the easy removal of the steering wheel allows it to be stowed and locked beneath the cabin. No steering wheel, means less chance of your boat being stolen.


3300 Maxflex Extreme Cable

Starting From:
$43.99
This Part has options, please click the button below to order.

3300C / 33C Maxflex Extreme Cable

620-630 + Option(s)

3300C / 33C Maxflex Extreme Cable

This is the new evolution of cable design with the very latest in construction technology from the aerospace industry The ultra slippery acetal liner surrounded by a high density HDPE casing that allows the all stainless steel cable to operate smoother, bend tighter, and all with less loss of motion than ever before. High Density Jacket Housing is 0.35" (9mm) Diameter.

  • Perfect for long complex cable routing.
  • Superior feel and smoothness from its efficiency
  • More responsive to tight tolerance applications.
  • Commonly used as a throttle cable, trim indicator cable and used on Jacuzzi jet drives 

Type 33C have 10-32 threaded ends