Hardin Marine

• For Gen 5/6 BBC Applications.
• Bravo Bellhousing mounted.
• 3" x 25" Oil Cooler with black anodized Brackets.
• 10' of Nylon Braided Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Head mount oil filter in choice of black or polished.
• Includes 8 Straight and 8 90 Degree Fittings for installation.

• For Gen 5/6 BBC Applications.
• Bravo Bellhousing mounted.
• 3" x 25" Oil Cooler with black anodized Brackets.
• 8' of Nylon Braided Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 4 Straight and 4 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 5/6 BBC Applications.
• 3" x 24" Oil Cooler with choice of Polished or Black anodized Brackets.
• 10' of nylon braided Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter head in choice of polished or black anodized.
• Includes 8 Straight and 8 90 Degree Fittings for installation.

• For Gen4 BBC Applications.
• 3" x 16" Oil Cooler with choice of Polished or Black Anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7914 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head in choice of polished or black anodized.
• Includes 6 Straight and 6 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 4 BBC Applications.
• Bravo Bellhousing mounted.
• 3" x 16" Oil tube Cooler with black anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7914 Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with Choice of Polished or black anodized
• Includes 6 Straight and 6 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 4 BBC Applications.
• 3" x 16" Oil Cooler with choice of Polished or Black Anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head in choice of polished or black anodized.
• Includes 8 Straight and 8 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 4 BBC Applications.
• Bravo Bellhousing mounted.
• 3" x 16" Oil tube Cooler with black anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with Choice of Polished or black anodized
• Includes 8 Straight and 8 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 5/6 BBC Applications.
• 3" x 16" Oil Cooler with choice of Polished or Black Anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7916 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head in choice of polished or black anodized.
• Includes 6 Straight and 6 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 5/6 BBC Applications.
• Bravo Bellhousing mounted.
• 3" x 16" Oil tube Cooler with black anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7914 Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with Choice of Polished or black anodized
• Includes 6 Straight and 6 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 5/6 BBC Applications.
• 3" x 16" Oil Cooler with choice of Polished or Black Anodized Brackets.
• 10' of Push-Loc Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head in choice of polished or black anodized.
• Includes 8 Straight and 8 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

• For Gen 5/6 BBC Applications.
• Bravo Bellhousing mounted.
• 3" x 16" Oil tube Cooler with black anodized Brackets.
• 8' of Push-Loc Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with Choice of Polished or black anodized
• Includes 4 Straight and 4 90 Degree Fittings for installation.
• Includes XRP Push-on Ensure Clamps that are self tensioning for severe race and high temp applications. A must for high heat and oil line applications like this, ensuring a secure seal without damage to the hose construction. For installation and removal of hose clamps, specially designed pliers are available (see related parts).

Tube, Sand Strainer

Turbosonic Leakproof Drive Lube Monitor Caps

Lyall Tubrosonics, Inc. has designed and manufactured an internally baffled leak-proof cap for hydraulic drive lube reservoirs. This product was developed to solve the hydraulic drive lube fluid leaks into the bilge area. This two-piece design with an internal baffle prevents the hydraulic fluid from leaking out the vent. Replaces the stock caps. Available in standard blue, designer series polished look, red, chrome, and purple.

Fits MerCruiser, Mercury Kiekhaefer, and most other Drive Lube Monitors.

Turbosonic Leakproof Trim Caps

Lyall Tubrosonics, Inc. has designed and manufactured an internally baffled leak-proof cap for hydraulic drive lube reservoirs. This product was developed to solve the hydraulic drive lube fluid leaks into the bilge area. This two-piece design with an internal baffle prevents the hydraulic fluid from leaking out the vent. Replaces the stock caps. Available in standard blue, designer series polished look, red, chrome, black chrome and purple.

Fits MerCruiser, Mercury Kiekhaefer, Stern Drive Trim Pumps, and K-Planes Hydraulic Pump Reservoirs and Volvo, DP-S, DPX and SX Hydraulic Pump Reservoirs.

Product Advisory

Twin Engine "Sound-Selection" Air Activated Exhaust Diverter System
Twin Engine Standard Exit System For Small & Big Block Chevy

At last you can have the very best of both worlds.  You can go from marina quiet thru-prop exhaust to the open water roar of thru transom exhaust.  With no cutting or modifications these highly polished stainless steel exhaust diverters install simply to both stock and aftermarket exhaust systems.  But that's only the half of it. What makes the Hardin Marine Sound-Select Diverter America's No.1 choice is it is air activated - yes air activated - the same way the factory original guy's do it. You ask why air?  Reliability and safety.  Reliability because weDO NOT retro-fit electrical solenoids as marine exhaust components.  Electric solenoids produce a continuous draw of electricity while generating possible sparks and heat in an enclosed engine compartment.  An air operated system is driven by a remote mount panel providing none of the side effects electrically operated systems have.  So if only the best will do for your boat do it the way the factory intended to do it - Choose the Hardin Marine Sound-Select Exhaust Diverter!

Each Sound-Select Diverter system is constructed of aerospace stainless components. The systems are sold complete with 4 diverters, and 1 remote operation panel. Switch and exhaust tips sold separately.

These diverters will fit Bravo and Alpha applications 1987 and up they will not fit the 8.1 engines, OMC or Volvos.

The Mercury 350 dry joint exhaust will not work with the Hardin diverter.
Corsa has a set part number 270-61000 for standard non riser spacers. If there is space, we need to know if it is 3" or 6" and Corsa can build a custom set.

Two Lever Xtreme Throttle/Shifter Control Customizer

The World's Finest Controls Are Now Stronger, Smoother And Have More Features Than Any Other Control Available

Hardin Marine offers the serious boater unsurpassed quality, performance and service.  The newly designed Hardin Marine Xtreme controls start with a main body quadrant CNC machined from lightweight durable aircraft billet aluminum.  while the handles are made of nothing short of nearly indestructible all billet stainless steel.  these controls feature larger smooth ergonomically designed throttle and shift knobs.  The throttle knobs allow for an industry exclusive 4 trim button option to ensure comfortable manageability boat control.  The Hardin controls offer an extremely narrow mounting footprint to allow easy mounting in the tightest of quarters but it does not stop there.  With the ability to change cable entry locations from front, rear, and even bottom entry these controls give you unlimited options.  If you can't decide between a detent (click) style operation or smooth, no problem, these controls offer both with a simple adjustment from the top side, there's no need to remove the controls to make the adjustment.  If your the type of customer that prefers "Great" over "Good" or "Exceptional" over "Acceptable" then we're confident you will own Hardin Marine Controls.

Shifter Features:

• Adjustable from DETENT (click) style or SMOOTH (friction) style...Outstanding for all applications
• Detent and friction can be adjusted without removing the unit
• Three different cable entry options front, rear, or bottom allow for precise mounting and setting of throttles
• Unique swivel style cable clamps accept standard 30 series cables
• Optional 0, 2, or 4 aircraft waterproof billet aluminum trim button options
• Available in a standard polished finish or optional UV protected powder coated colors
• No exposed mounting hardware

These NEW heavy-duty, durable, billet aluminum/stainless steel throttles are built for the race or pleasure boater.  Now with two or four trim buttons mounted in the throttle handle.  One set of buttons for trimming both drives or both tabs, single or dual configurations can be used to activate drives, tabs, nitrous, etc.  billet aircraft button style switches are waterproof with the wires running internally through the handle and brackets leaving no exposed wiring.

Available in Polished, Blue, Red, Black, Flat Black, Purple, Orange, White, Yellow and Lime Green. Contact us for custom color options. NOTE: These are built to order and take 4-5 business days to ship

Bravo Shift Cable Adjustment Guidance

2 Piece Polished Driveline Cover

This 2 piece cover bolts to the bellhousing and covers the short jet H-bar type driveline adding protection and a clean finished appearance. 7 inches long, 7-1/2 inch O.D. mounting flange, 5-1/2 inch O.D. Tube. 5 inch I.D. tube. The bolt center to center diagonally across the opening is 6-1/2"

2 Stage 1-1/4" NPT Dual Common Inlet / Outlet

This fitting is designed to assist in the plumbing of your engine when using the Hardin Marine Multi-Stage sea pumps. Anodized 6061T6 Billet Aluminum. Used on 625-4946 and 625-4926

Mayfair Electronics by Hardin Marine and Marine Design Corp have teamed up to bring the new generation of the Heads-Up indicator system to the marine industry. This new heads up indicator system does away with cables and converts digital electronic signals to operate actuators on the display. Carbon Fiber cover plates with powdercoated bezels in multiple colors. Indicators come standard with black sticks with engraved white writing. Optional LED lit clear lexan sticks with black writing are an available options.

Mayfair electronics by Hardin Marine brings the newest generation of the Heads-Up indicator system to the marine industry. Featuring Carbon Fiber cover plates with powdercoated bezels in multiple colors. Indicators come standard with black sticks with engraved white writing. The mechanical version uses the common 33c cable to operate the sticks for simple reliable operation.

Uflex Rack and Pinion Steering System Packaged in a Box

A convenient kit form, especially suitable as replacement steering, that includes helm, bezel and cable. The cable is available in 1-ft increments from 8 to 20 feet (specify cable length when ordering). The wheel is not included. Click here for how to measure for replacement cable.

This kit includes:

• M86 - pre assembled helm with steering cable
• G86 - shaft assembly
• X34 - 90° bezel (diameter is 5 1/8")

Features and Technical Specifications:

• All stainless steel cable output ends
• Made exclusively in corrosion resistant materials
• Optional 90° or 20° installation
• Standard 3/4”tapered shaft
• Lock-to-lock steering wheel turns: 3,5
• Stroke: 8.2” (210 mm)
• Maximum allowable steering wheel diameter: 16.5” (420 mm)
• Minimum steering cable bend radius: 7,9” (200 mm)
• G86 steering systems are not to be used on boats equipped with engines that exceed the maximum horsepower rating of the boat
• Exceeds EN 28848 safety standards
• Exceeds ABYC P17 safety standards

Uflex Rotary Steering System Packaged in a Box

A convenient kit form, especially suitable as replacement steering, that includes helm, bezel and cable. The cable is available in 1-ft increments from 8 to 20 feet (specify cable length when ordering). Featuring the T71FC helm with a Planetary Gear Design, the Rotech reduces steering effort and delivers more balanced loads on the steering wheel. This unique design also offers a wider wear area which reduces lost motion and improves durability. Centered on the main drive shaft, this helm requires less room behind the dash and is a direct “drop in” replacement for competing system; requiring no new holes for installation. The Rotech package also includes the M66 universal Rotary Steering Cable with stainless steel output fittings for maximum longevity and smooth steering. Click here for how to measure for replacement cable.

This kit includes:

• T71FC - helm
• X34 - 90° bezel (diameter is 5 1/8")
• M66 - steering cable

Features and Technical Specifications:

• Cable Entry can be set from either Port or Starboard sides
• Fast connect, simple installation
• All stainless steel cable output ends
• Corrosion resistant materials
• Particularly suitable where clearance is limited
• Optional 90° or 20° installation
• Standard 3/4” tapered shaft
• Lock-to-lock steering wheel turns: approx. 3,8
• Stroke: 9” (228 mm)
• Maximum allowable steering wheel diameter: 16” (406 mm)
• Minimum steering cable bend radius: 7.9” (200 mm)
• Minimal feedback
• Compact for mounting
• T71FC steering systems are not to be used on boats equipped with engines that exceed the maximum horsepower rating of the boat.
• For boats faster than 50 mph the twin cable steering system T72FC is recommended
• Exceeds EN 28848 safety standards
• Exceeds ABYC P17 safety standards

UFLEX Style Aluminum Steering Bezel

If you've ever wondered what to do about that cheap plastic steering bezel that cracks and fades on your Morse steering post or you just want the perfect color matched accessories to go with your new steering wheel and adapters, this is it.  These aluminum steering bezels are a direct replacement for the stock plastic bezel and are available polished or in your choice of colors.  These units fit rack and pinion steering helms only.

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

NOTE: THE INSTALLATION OF THIS BEZEL MAY REQUIRE YOUR SHAFT ADAPTER BE MODIFIED FOR THE BEZEL TO FIT PROPERLY.

1310 Spicer Bolt Pattern To Jet Pump Spline

• Overall length: 7-1/2"
• Spline Shaft: 1-3/8"
• Flange Mount: 2" x 2-3/8"
• Spline length is 2" inside coupler
• Uses 3/8-24 bolts

This unit bolts to the PTO flange. This is the most standard u-joint assembly found in production style boats.
Note: The overall length does not include the PTO flange which is and additional one inch thick.

Need help choosing your new driveshaft? Check out this handy tutorial!

Universal Dipstick Kit

Efficient twist-lock design eliminates oil leakage, blowing out of handle and keeps crankcase gases from escaping. In Dyno testing, engines equipped with this Moroso twist lock dipstick pulled more vacuum than engines with a standard, non-locking dipstick.

Features:
• Efficient twist-lock design
• High temperature nylon handle dissipates heat for checking oil level on hot engines
• Flexible stick with zinc-plated bendable outer tube
• Adjustable mount tab can be modified as needed
• 1/4" NPT steel weld-in fitting supplied for pans not already equipped
• Existing "Full" and "Fill" marks can be used or new marks can be added
• Overall length including exposed portion of dipstick is 24"

• All plastic construction
• Only for 1/8" pitot hose
• Not recommended for high performance applications 
• Tested up to 80MPH
• Triangular bolt pattern, top bolts are 1-1/4" above bottom bolt.

• All plastic construction, "tested" to 80 MPH
• Designed to accept 1/8" pitot hose ONLY. (Included)
• Not recommended for high performance applications