Hardin Marine

Hardin/Mercury Pump Shaft
Your Price:
$225.99

Mercury / Hardin Gen 4 Replacement Sea Pump Snout Assembly

625-4104

Heavy Duty Replacement Snout Assembly for Hardin or Mercruiser Gen 4 Sea Pumps. Includes Snout Housing, Seals, Bearings, Snap Ring and Shaft.

Mercury Gen 5/6 Replacement Sea Pump Shaft (Mercruiser 818366A1)
Your Price:
$199.99

This Part has options, please click the button below to order.

Mercury / Hardin Gen 5/6 Replacement Sea Pump Shaft (Mercruiser 818366A1)

625-4270

Heavy Duty Replacement shaft for Hardin or Mercruiser Gen 5/6 Sea Pumps. Replaces Mercruiser OEM #818366A1

Mercury 1075 Two Stage -16 ORB Dual Common Inlet/Outlet Sea Pump Adapter
Your Price:
$259.99

Mercury 1075 Two Stage -16 ORB Dual Common Inlet/Outlet Sea Pump Adapter

625-4159

Mercury 1075 Two Stage -16 ORB Dual Common Inlet/Outlet Sea Pump Adapter - Replaces Mercury #842625

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. All of these components are polished stainless steel or hard anodized to resist harsh corrosive environments. Replaces Mercury OEM # 842625


Mercury 600/662/700 Upper Blower Pulley 3.50
Starting From:
$299.99
This Part has options, please click the button below to order.

Mercury 600 / 662 / 700 Upper Blower Pulley

625-822 + Option(s)

Mercury 600/662/700 Upper Blower Pulley

Billet aluminum blower pulley, 3.25" or 3.50" diameter. NOTE: The 3.50" pulley has slots cut in the pulley face while the 3.25" pulley does NOT have the slots cut in the pulley face.

Mercury Bravo Trim Sender Kit - Port Side
Your Price:
$339.99

Mercury Bravo Trim Sender Kit - Port Side

137-8647

Non-Standard port side trim sender and mount


Mercury Bravo Trim Sender Kit - Starboard Side
Your Price:
$299.99


Mercury Cable Attachment for N-Control Shifter
Your Price:
$32.99

Mercury Cable Attachment for N-Control Shifter

620-60210

This adapter allows the use on Mercury style cables with the N-Control Shifter.

Mercury Control Adapter
Your Price:
$114.99

Mercury Control Adapter

620-30107

Mercury Control Adapter


Mercury Racing Fuel Filter Element
Your Price:
$26.95

Mercury Fuel Filter Replacement (RF51)

692-33408

Mercury Fuel Filter Replacement (RF51)

The RF51 spin-on Fuel Filter utilizes FST’s exclusive FloMax™ low restriction, high efficiency filter media that filters down to 4 microns, and strips 99% free water.

  • 100% Made in America • Size: O.D.: 11/16” (93.7mm) Height: 3-7/8” (98.4mm)
  • Thread: 11/16-16
  • Gasket/Seal: (attached) O.D. 2.834(72mm) I.D.: 2.462 (63mm) Thick 0.500 (5mm)
  • Flow: 200 gallons per hour
  • Filtering Effificiency: 4 Microns: FloMax™ exclusive cellulose (gasoline-methanol-ethanol compatible). Most competitors are in the 10-24 Micron range.
  • Water Separation: FST’s exclusive, enhanced cellulose FloMax™ filter media strips/ separates water to a “quiet” zone for water and heavy contaminates to settle. Strips 99% of free water. Not water blocking and does not swell up, which can block the fuel flow.
  • Burst: 250 psi
REPLACES: FRAM: PS3808, MERCURY MARINE: 35-1604941, 35-60494, 35-802893Q, 35-802893Q01, 35-802893T, 35-805269, 35-807172, 9-37801, C35-60494A, NAPA: 3225, 3226, SIERRA: 187845, 18-7845, 18-7945, WIX: 33225, 33226

Mercury Gimbal/ Imco SCX 3 Wire Trim Sender
Your Price:
$299.99


Mercury Impeller Rebuild Service Kit
Your Price:
$69.99

Mercury Impeller Rebuild Service Kit for Hardin Pumps

625-4179

Impeller Rebuild Service Kit - For Gen 4, Gen 5/6, Rev. 1 Hardin Stainless Pumps - Mercury Replacement

This impeller kit is a rebuild service kit for the Hardin Marine stainless impeller housing 625-4178 and stainless pumps 625-4110 and 625-4118 . This kit comes with new wear plates , O-rings, and impeller.

Which Rebuild kit do I need?

Rev. 1 pumps have a 1/8" drain plug in the rear housing and a slotted front wear plate.
Rev. 2 pumps have no drain plug and a solid front wear plate.

Mercury

This impeller kit is a rebuild service kit for the Hardin Marine stainless impeller housing 625-4178 . 

Kit includes:
  • (1)Impeller
  • (2) Wear Plate
  • O-rings

See here for individual replacement parts.


Mercury Outboard Adapter
Your Price:
$26.99

Mercury Outboard Adapter

620-30190

Mercury Outboard Adapter


Mercury Racing 525 EFI, 600/662/700 SCI Series V8 MLS Exhaust Gasket Pair
Your Price:
$69.99

Mercury Racing 525 EFI, 600/662/700 SCI Series V8 MLS Exhaust Gasket Pair

300-1414

Mercury Racing 525 EFI, 600/662/700 SCI Series V8 MLS Exhaust Gasket - Sold in Pairs

These gaskets are designed to withstand the highest of temperatures on high horsepower applications. For those of you looking to do the job only once insist on Hardin Marine extreme-duty gaskets. Quite possibly the last gasket you’ll ever need.

These MLS exhaust gaskets are ideal for both aluminum heads & cast iron heads as well as cast iron and aluminum blocks. The composition of MLS gaskets will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is required and by design promotes an even torque load across the sealing surface.

Sold in Pairs


Mercury Racing 700 Intercooler Hi-Flow Fitting Kit
Your Price:
$359.99

Mercury Racing 700 Intercooler Hi-Flow Fitting Kit

625-4614

Mercury Racing 700 Intercooler Hi-Flow Fitting Kit

This fitting kit replaces the stock fittings with larger higher flow fittings allowing better cooling performance. Fittings are -10 AN.


Mercury Racing Fuel Filter Element
Your Price:
$33.95

Mercury Racing Fuel Filter Element (Replacement #35-8M0000202 or (RF500M)

692-33407

Mercury Racing Fuel Filter Element (Replacement #35-8M0000202 or (RF500M)

The FST Performance RF500M fits the OEM Mercury racing filter head as well as the Hardin Marine Billet fuel / water separator head #625-7667. This filter removes contaminates down to as small as 3 Microns while separating water. With a flow rate of 5GPM and up to 300 GPH flow with less than 1% pressure drop at 75psi through 579 sq.in. of filter material.

Measurements: 6-1/2" tall and 3-5/8" wide. Thread size is 1"-14 


Mercury Sterndrive Cable Adapter
Your Price:
$33.99

Mercury Sterndrive Cable Adapter

620-30212

Mercury Sterndrive Cable Adapter

Adapts 33C / 3300 style cables for use with Mercury Engines.


Mercury Verado Trim Actuator Kit
Your Price:
$539.99

Mercury Verado Trim Actuator Kit

137-8688

Trim Sender Actuator for Mercury Verado applications.


Terminal Block Only
Your Price:
$8.99

Modular Terminal Block End Caps 5 Pack

516-3026

Modular Terminal Block End Caps 5 Pack

Use with modular terminal blocks sold separately to complete your terminal block.


Terminal Block Only
Your Price:
$7.99

Modular Terminal Block Removal Tool

516-3020

Modular Terminal Block Removal Tool

Use this tool to separate Modular Terminal Block sections.


Terminal Block Only
Your Price:
$11.99

Modular Terminal Blocks 5 Pack

516-3025

Modular Terminal Blocks 5 Pack

These 30 Amp rated marine grade terminal blocks offer secure connections of the vital instrument wiring in your boat. Their modular nature allows you to build a terminal block of any size you need. Use with modular end caps sold separately to complete your terminal block.


Momentary Trim Switch for Early Hardin, Gaffrig and Livorsi Controls
Your Price:
$16.99

Momentary Trim Switch for Early Hardin, Gaffrig and Livorsi Controls

725-3407

This is a Momentary Trim Switch that will replace worn out switches on Early Hardin, Gaffrig and Livorsi controls.


Momo Steering Wheel Center Cap
Your Price:
$49.99

Momo Steering Wheel Center Cap

137-9130

  • Fits Momo 6-Bolt Steering Wheels (All 6-bolt Wheels we sell are Momo)
  • 3-1/2" Diameter 
  • 3/8" Height
  • Polished Billet Aluminum
  • Includes 6 bolts for mounting 
  • Can be used with most steering wheel adapters 
  • Designed to be used with Hardin Marine One-Piece Adapters (see related items)

Motor Reversing Module
Your Price:
$45.99

This Part has options, please click the button below to order.

Motor Reversing Module

620-436

This module changes the direction of the motor, and dynamic breaking stops the motor when the switch returns to “OFF”. The low profile is perfect for tighter spaces and the hardware is completely corrosive resistant. It’s ideal for tarp or lift applications, as well as for hoists, hatches, winches, slowpows, intake/exhaust fans, vehicle outriggers, and other reversing applications.


Mounting Hardware
Your Price:
$27.99

Mounting Hardware

137-8072

Mounting Hardware for Mayfair Trim Tabs (2) required per kit. 

Mounting Plate for 151-1200 Trim Switch
Your Price:
$9.99

Mounting Plate for 151-1200 Trim Switch

151-1225

Mounting Plate for 151-1200 Trim Switch

Plate and 4 screws for mounting a 151-1200 Trim Switch to most steering wheels.


MSD Bracket, Ford Front Cover Mount
Your Price:
$79.99

MSD Bracket, Ford Front Cover Mount

620-11222

MSD Bracket, Ford Front Cover Mount

  • Ultimate in a clean and functional installation.
  • Designed to sandwich between an MSD 6M, Max Volt MV-D6 or a Daytona Sensors CD-1 Control Box.
  • Satin Finished Stainless Steel.
  • Will mount on a 460 Ford Cylinder Head

Side Mount Shifter
Your Price:
$799.99

N-Control Dual Side Mount Shifter

620-60221

  • Dual Side Mount Shifter.
  • Positive Locking feel when in hand.
  • Ergonomically Designed.
  • Uses two 33C cables.
  • Can be used with factory Mercury cables with purchase of adapter sold separately.
  • This is a Shifter only and is designed for use in conjunction with a foot throttle assembly