Hardin Marine

Xtreme Marine Seal Oil Pan Gasket - Small Block Chevy
Your Price:
$33.99

Xtreme Marine Seal Oil Pan Gasket - Small Block Chevy

300-17982

Xtreme Marine Seal Oil Pan Gasket - Small Block Chevy with 1-piece rear seal (rear seal sold separately)- Sold Each

These Xtreme Marine Seal oil pan gasket sets are designed for today's performance marine engines that create excessive amounts of vacuum and pressure in the engine caused by excessive windage of a wet sump oiling system. These gaskets are constructed from a high pressure drawn fiber material that offers excellent strength and superior resistance to blowout.

Sold Each


Xtreme Series Valve Covers, Polished, 1 Hole Machined with Billet Oil Plug
Your Price:
$299.99

Xtreme Series Valve Cover Kit, Polished, 1 Hole Machined with Billet Oil Plug

620-45002

Xtreme Series Valve Cover Kit, Polished, 1 Hole Machined with Billet Oil Plug and Bolt Kit (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill. Bolt Kit included.


Xtreme Series Valve Covers, Polished, 1 Hole Machined with Billet Oil Plug
Your Price:
$294.99

Xtreme Series Valve Cover Kit, Polished, for Dry Sump

620-45004

Xtreme Series Valve Cover Kit, Polished, for Dry Sump, with Bolt Kit

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. Includes Bolt Kit. DRY SUMP APPLICATIONS ONLY. These Valve Covers do not have any oil fill holes.


Xtreme Series Valve Cover Kit, Satin with 1 Hole Machined
Your Price:
$214.99

Xtreme Series Valve Cover Kit, Satin with 1 Hole Machined

620-45003

Xtreme Series Valve Cover Kit, Satin with 1 Holes Machined, with a Oil Plug and Bolt Kit (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill. Bolt Kit included.

These valve covers come in a raw satin finish, and require preparation for powder coat or painting!


Xtreme Series Valve Cover Kit, Satin, for Dry Sump
Your Price:
$224.99

Xtreme Series Valve Cover Kit, Satin, for Dry Sump

620-45006

Xtreme Series Valve Cover Kit, Satin, for Dry Sump with Bolt Kit

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles.

These valve covers come in a raw satin finish, and require preparation for powder coat or painting!


Xtreme Series Valve Cover System, Polished
Your Price:
$339.99

Xtreme Series Valve Cover System - Raw

620-45001

Xtreme Series Valve Cover System, 1 Billet Oil Plug, 2 Breather Extensions and Filtered Breathers Included (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill.

These use valve covers that are raw/unpolished.


Xtreme Series Valve Cover System, Polished
Your Price:
$399.99

Xtreme Series Valve Cover System, Polished

620-45000

Xtreme Series Valve Cover System, Polished with 1 Billet Oil Plug, 2 Breather Extensions and Filtered Breathers Included (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill.


Xtreme Series Valve Covers, Polished with 3 Holes Machined
Your Price:
$279.99

Xtreme Series Valve Covers, Polished with 3 Holes Machined

620-44050

Xtreme Series Valve Covers, Polished with 3 Holes Machined, 1 with a Oil Plug, 2 for Breather Installation (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill. Breathers sold separately.


Xtreme Series Valve Covers, Polished, 1 Hole Machined with Billet Oil Plug
Your Price:
$269.99

Xtreme Series Valve Covers, Polished, 1 Hole Machined with Billet Oil Plug

620-44000

Xtreme Series Valve Covers, Polished, 1 Hole Machined with Billet Oil Plug (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill.


Xtreme Series Valve Covers, Polished, 1 Hole Machined with Billet Oil Plug
Your Price:
$269.99

Xtreme Series Valve Covers, Polished, for Dry Sump

620-44054

Xtreme Series Valve Covers, Polished, for Dry Sump

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles.


Xtreme Series Valve Covers, Satin with 1 Hole Machined
Your Price:
$209.99

Xtreme Series Valve Covers, Satin with 1 Hole Machined

620-44001

Xtreme Series Valve Covers, Satin with 1 Holes Machined, with a Oil Plug (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill.

These valve covers come in a raw satin finish, and require preparation for powder coat or painting!


Xtreme Series Valve Covers, Satin with 3 Holes Machined
Your Price:
$219.99

Xtreme Series Valve Covers, Satin with 3 Holes Machined

620-44051

Xtreme Series Valve Covers, Satin with 3 Holes Machined, 1 with a Oil Plug, 2 for Breather Installation (pair)

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles. One of the covers has a billet screw in -16 AN oil fill.

These valve covers come in a raw satin finish, require preparation for powder coat or painting!


Xtreme Series Valve Covers, Satin, for Dry Sump
Your Price:
$199.99

Xtreme Series Valve Covers, Satin, for Dry Sump

620-44056

Xtreme Series Valve Covers, Satin, for Dry Sump

A number of companies have tried to copy this Hardin Marine cover by building sand cast copies. There's a difference if you look at their wavy, pin holed, porous covers you'll see that the Hardin Marine "XS" Xtreme cover is a beautiful die cast cover with no waves and no blemishes. So if you're looking for the best 1-piece cover this is it. This cover has been specially designed to fit marine Big Block Chevy engine with center rise exhaust. Angling one side of the cover helps to access the 2 lower center bolts while maintaining enough valve cover height to run roller rockers and stud girdles.

These valve covers come in a raw satin finish, and require preparation for powder coat or painting!


Xtreme Billet Coalescing Fuel & Water Separator
Your Price:
$189.99

Xtreme Stainless Steel Fuel Filter Head with FST Filter - Black Anodized

625-7676

Xtreme Stainless Steel Fuel Filter Head with FST Filter - Black Anodized

Form and function is beautifully combined in these coalescing fuel and water separators Constructed of stainless steel and polished to a mirror finish these filter mounts offer a quad webbed bolt configuration that allows a straight-thru or 90 degree inlet to outlet fuel hose routing. The large 3/4" NPT ports provide for maximum fuel flow approaching 200 gallons per hour The high flow and high pressure capabilities and the 1/8" NPT fuel pressure sender port of this assembly make it perfect for both carbureted and fuel injected applications The unique "coalescing" element core is impervious to moisture and contamination and foreign particles while providing maximum fuel system flow.

  • Constructed of Polished 316L Stainless Steel. Polished Bracket with Black Anodized Filter Head.
  • Quad webbed bolt configuration allows a straight-thru or 90 degree inlet to outlet fuel hose routing.
  • Three Large 3/4" NPT ports provide for maximum fuel flow approaching 300 GPH.
  • 1/8" NPT fuel pressure sender port.
  • Perfect for carbureted and fuel injected applications.
  • Kit Includes HP FST RF500M filter

Aluminum Engine Mount Rails
Your Price:
$89.99

Aluminum Engine Mount Rails

620-10043

Aluminum Engine Mount Rails

Kit includes pair of rails measuring 3" wide x 5" tall x 8" long. You can use either the 3" side or 5" side as the top. Includes hardware as shown.

Custom Rail Style Engine Mount Kit
Your Price:
$149.99

Big Block Chevy Aluminum Oversized Front Motor Plate

755-8487

Made from 3/8" thick 6061-T6 Aluminum that can be easily polished or anodized to match your existing hardware. Left oversized to fit any application or accessories. Has 4x 7/16" mounting holes and timing cover cutout. Approx. size 28" wide x 16" tall x 3/8" thick


Custom Rail Style Engine Mount Kit
Your Price:
$219.99

Big Block Chevy Aluminum Oversized Rear Motor Plate

755-8488

Made from 3/8" thick 6061-T6 Aluminum that can be easily polished or anodized to match your existing hardware. Left oversized to fit any application or accessories. Has 7x mounting holes, crank and starter hole. Approx. size 28" wide x 16" tall x 3/8" thick


Power Trim Tab Motor / Pump, 12V, Mercury
Your Price:
$429.99

Complete Replacement Trim Pump for Mayfair Trim Tabs - 12v

137-8230

  • NEW 12V 3-Wire Motor/Reservoir/Pump for Mayfair Trim Tabs
  • Pump has a gear set that produces Low Flow Rate with High PSI
  • Pump can be also be used to drive K-Plane Trim Tabs
  • Supplied with Right Side Fill Reservoir
  • No bracket included.
  • Uses 10w30 oil

Power Trim Tab Motor / Pump, 12V, Mercury
Your Price:
$579.99

Complete Replacement Trim Pump for Mayfair Trim Tabs - 24v

137-8239

  • NEW 24V 3-Wire Motor/Reservoir/Pump for Mayfair Trim Tabs
  • Pump has a gear set that produces Low Flow Rate with High PSI
  • Pump can also be used to drive K-Plane Trim Tabs
  • Supplied with Right Side Fill Reservoir
  • No bracket included.
  • Uses 10w30 oil

SAEJ1171 Alternator, Pleasurecraft, 12V, 70-AMP
Your Price:
$198.99

Delco Style Alternator, Serpentine, 12V, 70-AMP

620-3150

Delco Style Alternator, Serpentine, 12V, 70-AMP

  • NEW 12V, 70-AMP
  • Fits Pleasurecraft
  • 2" Mounting Foot
  • Includes 50mm Serpentine Pulley

Small Frame Alternator, 50 Amp
Your Price:
$343.99

Mercruiser 500EFI, 575SCI Replacement Small Frame Alternator, 50 Amp

620-3145

500EFI, 575SCI Replacement Small Frame Alternator, 50 Amp

  • Replaces Mercruiser 500EFI and 575SCI alternators as well as Mercury 2.5L EFI Race Outboard alternator.
  • Replaces Mercruiser #'s 834832T, 857006A3, 857006T
  • Ignition Protected SAEJ1171
  • Includes multi-groove Serpentine Pulley

Mercury Trim Tac Actuator Kit, Post 11/2004 (Pair)
Your Price:
$177.99

Mercury Trim Tac Actuator Kit, Post 11/2004 (Pair)

137-8076

Mercury Trim Tac Actuator Kit, Post 11/2004 (Pair)


1/4" O.D. Clamshell Cover for Hose

Your Price:
$27.99

Stainless Steel Clamshell Trim Line Cover

105-93683 + Option(s)

  • Stainless Steel cover for 33C cables or 1/4" speedometer hose
  • These covers are available in polished or powder-coated
  • Overall length is 3 1/2", mounting holes are 1-7/8" on center.

1" Solid Tie Bar Assembly
Your Price:
$392.99

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

1" Solid Tie Bar Assembly

137-9418

1" Solid Tie Bar Assembly - Up To 40" Long

Tie bars take 7-10 days to build and are NON-RETURNABLE


Hardin Marine Oil / Water Temperature Sender (Gen II, 2019 and Later Gauges)
Your Price:
$30.99

Hardin Marine Oil / Water Temperature Sender (Gen II, 2019 and Later Gauges)

106-9905

Hardin Marine Water or Oil Temperature Sender - 2019 and Later Model Gauges
1/8" NPT sender with 1/4", 3/8" and 1/2" NPT bushing kit, Oil and Water Temp Sender

These electric temperature senders feature a brass non-corrosive body that allows the sender to transfer temperature extremely accurately. These senders include bushing kits to fit multiple size applications.


High Vibration Electric Oil Pressure Sender 0-100 PSI, Autometer Gauges
Your Price:
$46.99

Hardin Marine Oil Pressure Sender 0-100PSI (Gen II, 2019 and Later Gauges)

106-9900

High Vibration Electric Oil Pressure Sender
0-100 PSI, for Hardin Marine Gauges 2019 and later

These heavy duty oil pressure senders are designed to take the high vibration and punishment performance engines dish out, while providing superb accuracy. These senders are 1/8" NPT.


Hardin Marine Water Temperature and Oil Pressure Sender Combo Set for 5 Gauge Kits (Gen II, 2019 and Later Gauges)
Your Price:
$74.99

Hardin Marine Water Temperature and Oil Pressure Sender Combo Set for 5 Gauge Kits (Gen II, 2019 and Later Gauges)

106-9910

Hardin Marine Water Temperature Sender and Oil Pressure Sender Kit - 2019 and Later Model Gauges
1/8" NPT sender with 1/4", 3/8" and 1/2" NPT bushing kit, Water Temp Sender, and Oil Pressure Senders

This kit includes all the senders you need to complete a new installation of a Hardin Marine 5 Gauge Combo Set.