Hardin Marine

Billet Aluminum Switch Knobs - Plain, Pump, Blower, Light, Mag, Fuel, NOS, Accessory

These billet aluminum switch knobs are perfect for accenting and tying in the colors of your boat. They are available in all of the popular colors and simply thread on to all 10-24 standard switches.

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

Billet Aluminum Toggle Switch Bezel

Thread size on this bezel is: 15/32 to match most of all standard toggle switches.

Here's another great way to highlight any dash. These easy to install billet switch bezels come in all popular colors to fit key switches, push-pull switches, toggle switches, and even push button switches.

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

Billet Aluminum Transom Mount Ski Tow

New transom mount ski tows are machined out of solid billet aluminum for good looks and uncompromising strength. 3-1/2" diameter. Bolt holes are 3" on center.

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

Billet Aluminum Valve Cover Breather

These billet aluminum valve cover breathers are so nice they could be jewelry for your engine. Each breather is precision machined from solid billet aluminum. They are height matched with dense foam packing and work well to keep blow by to a minimum. Valve cover breathers contain an effective filter which traps oil vapor and prevents engine compartment contamination. Universal design fits any 1" diameter valve cover hole. Sold Each.

• 2.25" bolt spread.
• 1.75" x 3.0" base.
• 4.25" tall.

• -8 AN Threads.
• Outer Diameter 1".
• Overall Length 3-1/8".
• Your choice of Color Option. 
• Will accept a -8 AN style fitting or 3/4" push-on hose.
• Includes nut.

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

Machined Billet Aluminum Water Pump Cover Plate - 429-460 Ford

These cover plates are designed to cover the OEM water pump area and allow cooling water to enter the engine through the provided 1/2" NPT inlet holes. Includes stainless steel bolts and gaskets.

Machined Billet Aluminum Water Pump Cover Plate - 455 Oldsmobile

These cover plates are designed to cover the OEM water pump area and allow cooling water to enter the engine through the provided 1/2" NPT inlet holes. Includes stainless steel bolts and gaskets

These bezels add a touch of color to your cleats. 8.25" x 2" ID.  8.75" x 2.75" OD. NOTE: We do not sell the cleats that fit these bezels. Please check the size of your cleats before ordering.

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

Billet Bezels for Pop-Up Cleats 4-1/2", 6", 8"

These bezels add a touch of color to your pop-up cleats. These are to be used with cleats 680-202-4, 680-202-6 and 680-202-8.  

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

These bezels add a touch of color to your pop-up cleats. These are to be used with cleats 680-301-4 and 680-301-6.

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

Billet Fire Extinguisher Bracket - 2-1/2 LB, 3" Bracket

Not all billet extinguisher brackets are alike! Although most are attractive looking, that's where the similarities end. The real thing you should be looking for in addition to good looks is functionality. Compare these features and you'll see why the only wise choice is a Hardin Marine Billet Bracket.

First the Hardin Marine bracket lets the extinguisher push straight in and pull straight out while other style brackets require you to slide in from the end of the bracket allowing limited mounting locations. Also the Hardin Marine bracket has built-in nylon adjustment pads to create a rattle free extinguisher mount, another feature missing from other brands. Lastly the 4-3/8" X 2" rectangular mounting pad allows you to use four attaching fasteners, something a round pad doesn't offer. So if you would like the best built, best functioning, and best looking extinguisher bracket as for the Hardin Marine bracket by name.

Extreme Custom Billet Flame Arrestor - Single 10" Diameter Holley 4150 or Demon, 3" Tall

At Hardin Marine we recognize that your flame arrestor should not only function perfectly and provide the very most available airflow, but that it should be beautiful to look at and enhance yourengine compartment The flame arrestor is the "Crown" of your engine! For that reason we build the very finest flame arrestors available.

We start with the finest 6061-T6 billet aluminum, CNC machined it to perfection Each unit is then hand polished by our experienced master craftsmen to a mirror finish The assembly is then mated with a 3" tall, USCG approved, high flow, multi-layered stainless steel screened element The top and bottom sections rest solidly on unique standoffs which will not allow the element to be crushed as can happen with common filter elements.

Whether you need standard or a custom dimension, each arrestor is built to exacting specifications. There are no sloppily adjustable mounting bases or elongated holes to contend with, just pure perfection.

Available for single or dual carburetor applications to fit most popular Barry Grant, Holley and Edelbrock carburetors. Need a custom center dimension....NO PROBLEM.

Available polished only.

If you would like to order Flame Arrestor built to your custom dimensions click here to download the worksheet.

These aluminum fuel vents are the very latest in styling.

• Each vent accepts 5/8" fuel vent hose
• The grip range is 3/4".

They are extremely low profile and come in all popular colors.

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

Billet High Flow -12 AN Cooler Jam Nut/Adapter Fitting

At last an answer to the restriction problem commonly caused by pipe threadstyle fittings with a plate style cooler. A standard pipe thread fittinguses the internal threads of the cooler while drastically reducing the orificesize severely limiting flow and volume.

These new billet AN adapter cooler fittings provide two distinctfeatures. First these fittings attach to the external threads of thecoolers inlet and outlets providing 100% unrestricted oil flow and secondly theytake the place of the steel locking jam nuts providing a positive o-ring sealeliminating those old leaking corroded steel nuts.

Sold each.

This billet aluminum crank pulley is black anodized and replaces the original and now discontinued painted steel OEM versions from Mercury. 17mm shaft. Fits

• 496 Mag base & HO: 0W310000 & up
• 496 Mag EC Base & HO: 1A0666164 thru 1A350440.
• 496 HO bravo: 1G400000 & up.
• 8.2 Mag base & HO: 1S351597 & up.
• 8.2 Mag EC base & HO: 1A350340 & up.

This billet aluminum crank pulley is black anodized and replaces the original and now discontinued painted steel OEM versions from Mercury. 19mm shaft. Fits 496 Mag Base and HO:

• 0M025000 thru 0687082
  
• 0M687082 thru 0W059999
  
• 0W060000 thru 0W309999

Billet Power Steering V-Groove Pulley

These power steering pulleys mount with a mandrel so you can bolt the pulleyto the mandrel. Some manufacturers have you press their pulleys on, theseusually work themselves off due to belt heat and pump heat. Always use amandrel for mounting.

Pulley has the diameter of 6.0".

• Made from Billet Aluminium
• 5-5/8" Outside Diameter
• 1-3/4" Bolt Circle
• Highly Polished
• 1-1/8" Pulley Groove
• 3" Tall
• Replaces Mercury #899737T

Billet Serpentine Idler Pulleys - 3-3/16" Ribbed Idler Pulley

Each precision machined billet pulley is 3-3/16" in diameter and features oversized high RPM bearings. Used with 17mm idler spacer or boss.

Billet Serpentine Idler Pulleys - 3-3/16" Smooth Idler Pulley

Each precision machined billet pulley is 3-3/16" in diameter and features oversized high RPM bearings.  Used with 17mm idler spacer or boss.

Billet Sterndrive Engine Mount (2 per engine needed, Sold Each)

These billet engine mounts by Hardin Marine offer an affordable option when looking to upgrade from your original rubber OEM mount in mild performance applications These strong billet aluminum mount bases are matched with 316 SS mounting posts These mounts are designed as a direct replacement for most MerCruiser OEM engine mounts. Base Measures 5-1/4" in Length, 2-1/2" in Width and 1-1/4" Tall. Mounting holes are 4" center to center. Overall Height from base to top of stud is 4-1/2".

Billet Stringer Mount Battery Box Support

These battery box mounts are new old stock. These supports are machined from solid billet aluminum (no welds) to create an incredibly durable mount. These are available in a raw finish, that you can paint or powder coat to suit, or in limited quantities in Polished, Red, Blue and Purple. 12" Long, 8" Wide, 3" Tall. These are pre drilled to fit the 620-124900 battery box but can be drilled and tapped to fit most battery boxes.

Battery box not included, this is a support bracket only.

Billet Swirl-Away Sea Strainer Cap - Swirl Style

For those of you seeking the looks of a billet style lid on your super strainer, Hardin Marine offers these attractive sea strainer billet lids. These lids are CNC machined from 6061 T-6 billet aluminum and offer the perfect decorative touch to any of the Hardin Sea Strainers. Available in polished and popular coated colors.

This lid fits Hardin Marine Swirl-A-Way 620-91320X Sea Strainers. It does not fit the Gil Style strainer.

Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 4

This kit includes:

• (1) 3-groove crankshaft front pulley
• (1) Sea pump pulley
• (1) Power steering pulley with mandrel
• (1) Alternator Pulley. D Shaped Shaft

At Hardin Marine we manufacture the finest high speed deep groove engine pulleys available. Each pulley is manufactured from 6061-T6 billet aluminum using Tru-Trac technology. Tru-Trac allows the V-belt to ride deep in the belt groove for maximum belt contact. Both the power steering and sea pump pulley use mandrel mounting features that protect the pulley from undue shaft heat. The most common cause for failure in lesser quality pulleys is caused from heat transferring to the pulley releasing from the shaft causing undue damage and safety hazards. All Hardin Marine shaft mount style pulleys use mandrels assuring you the best money can buy.

Billet V-Groove Engine Pulley Kit For Mercury Big Block Chevy Generation 5 & 6

This kit includes:

• (1) 3-groove crankshaft front pulley
• (1) Sea pump pulley
• (1) Power steering pulley with mandrel
• (1) Alternator Pulley. D Shaped Shaft

At Hardin Marine we manufacture the finest high speed deep groove engine pulleys available. Each pulley is manufactured from 6061-T6 billet aluminum using Tru-Trac technology. Tru-Trac allows the V-belt to ride deep in the belt groove for maximum belt contact. Both the power steering and sea pump pulley use mandrel mounting features that protect the pulley from undue shaft heat. The most common cause for failure in lesser quality pulleys is caused from heat transferring to the pulley releasing from the shaft causing undue damage and safety hazards. All Hardin Marine shaft mount style pulleys use mandrels assuring you the best money can buy.

Whether you're building a new power plant for your boat or you're like many and are ready to step from the stone age of traditional V-Belts to the modern long lasting and quiet operation of serpentine style drive system then Hardin Marine has the ultimate solution. This kit is designed to retain a factory style circulating water pump system and is perfect for use with a closed cooling system. What separates the Billet-track serpentine systems is engineering and design in the harshest of environments. The use of a specially designed spring loaded billet belt tensioner system keeps belt tension at a pre-loaded tension regardless of engine rpm. This is key to avoiding belt grip as well as a long life span. 

The billet track serpentine system is available in both a power steering equipped version and non-power steering version. The kits come complete with beautifully polished Billet-Track aluminum serpentine pulleys as well as high speed billet idlers featuring sealed bearings. All of the mounting brackets are machined from the finest 6061-T6 aircraft billet aluminum, stainless steel sea water pump, circulating water pump, a 94 amp high-output chrome alternator, and power steering pump, Each kit includes the mounting hardware and serpentine drive belt for the smoothest of installations.

NOTE: Picture shown with optional closed cooling tank mounts.

LS platform is rapidly being recognized by boaters around the world as the current and future platform for performance and reliability. Hardin Marine has always been at the forefront of engine development and the new Billet-Track LS accessory kit is just one more example.The perfect solution for mounting accessory components on the popular LS-1, LS-2, LS-3 and LS-6 used in engine swap applications.

The kit is engineered from 6061-T6 aluminum is precision CNC machined for strength and perfect fitment keeping a tight profile to the engine block. This all in one system kit includes a custom aluminum circulating pump, Billet crank pulley, Hardin Marine stainless steel water pump and billet pulley, power steering pump and billet pulley, High output 100amp alternator, Polished billet aluminum brackets and hardware, Stainless steel water inlet tube, and to keep it all spinning in style under constant tension a billet aluminum belt tensioner.

This system is sold without a closed cooling tank, however it MUST USE a closed cooled tank of some kind. This system in not designed for raw water cooling. System engineered to work with Fluidamper balancer #212-620121

• 100 amp internal fan alternator
• Billet polished aluminum alternator pulley
• Natural finish custom aluminum LS circulating water pump
• Billet Polished aluminum circulating water pump pulley
• Billet Polished aluminum accessory bracket
• Billet Polished aluminum Serpentine belt tensioner 
• Billet Polished aluminum tensioner pulley
• Billet Polished aluminum crankshaft pulley
• Goodyear Gatorback serpentine belt

These will NOT work with IMCO, MP, or front inlet exhaust systems.
These WILL work with Seaward, Hardin Cyclone, Lightning and CMI exhaust systems