Hardin Marine

Replacement O-Ring used in Hardin Marine Oil Filter Adapters and other applications. Used in:

• 625-7916 Oil Block Adapter
• 625-7704 Thermostat Oil Adapter
• 625-7912 O-Ring Service Kit
• 625-7706 Oil Adapter Service Kit
• 625-7748 Thermostatic Oil Filter Head, used in 625-7701 and more
• 625-7749 Thermostatic Oil Filter Head used in 625-7702 and more
• 137-8010 Dana Trim Ram Rebuild Kit
  

Outdrive Trim Hoses - Long (Priced per Inch)

This is a longer custom replacement trim pump connector hose for use when you want to relocate your outdrive trim pump and the stock hoses come up short. They are made from stainless  fittings and high performance stainless braided hose.

• Replaces Mercruiser # 32-861127 and 32-861128
• Will fit R/MR/Alpha I/II and BravoI/II/III
• Trim pump to connector block
• Stainless End to Connector Block: 7/16-24 IF
• Stainless End to Trim Pump: 3/8-24 IF
• Sold per Inch
• Custom Made per Order - MINIMUM SIZE is 60"
• NO RETURNS
  

Outdrive Trim Hoses - Long/Short Pair (Priced per Inch)

This is a longer replacement trim pump connector hose kit for use when you want to relocate your outdrive trim pump and the stock hoses come up short. They are  made from stainless  fittings and high performance stainless braided hose.

• Replaces Mercruiser # 32-861127 and 32-861128
• Will fit R/MR/Alpha I/II and BravoI/II/III
• Trim pump to connector block
• Sold per Inch
• Custom Made per Order - MINIMUM SIZE is 60"
• NO RETURNS
• If you need more than one pair of custom hoses, please give us a call to order them so we can make sure everything is built correctly.

Outdrive Trim Hoses - Short Radius (Priced per Inch)

This is a longer custom replacement trim pump connector hose for use when you want to relocate your outdrive trim pump and the stock hoses come up short. They are made from stainless fittings and high performance stainless braided hose.

• Replaces Mercruiser # 32-861127
• Will fit R/MR/Alpha I/II and BravoI/II/III
• Trim pump to connector block
• Stainless End to Connector Block: 7/16-24 IF
• Stainless End to Trim Pump: 3/8-24 IF
• Sold per Inch
• Custom Made per Order - MINIMUM SIZE is 60"
• NO RETURNS
  

Extreme Custom Billet Flame Arrestor - Dual 4150 / 4500 / Demon Series Oval 

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 your engine 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 2" 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 anodized, powder coated, and private labeled with yourlogo and with breather vent tubes.

Length is 21-1/2, and width is 10-1/2

For custom dimensions clickhere.

Extreme Custom Billet Flame Arrestor - Dual 4150 / 4500 / Demon Series Oval - Custom Built in 2-3 weeks, NON-RETURNABLE

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 your engine 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 solid 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 anodized, powder coated, and private labeled with your logo and with breather vent tubes.

Length is 21-1/2, and width is 10-1/2

For custom dimensions click here.

Oval Billet Flame Arrestor - Dual 4150/4500 3" Tall, 8-3/4" Center - BUILT TO ORDER IN 2-3 WEEKS AND NON RETURNABLE

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 your engine 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 solidlyon 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 arrestoris 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 anodized, powder coated, and private labeled with your logo and with breather vent tubes.

Length is 21-1/2, and width is 10-1/2

For custom dimensions clickhere.

Oval Billet Flame Arrestor - Dual 4150/4500, 3" Tall, 8-5/8" Center

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 your engine 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 solidlyon 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 arrestoris 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 anodized, powder coated, and private labeled with your logo and with breather vent tubes.

Length is 21-1/2, and width is 10-1/2

For custom dimensions clickhere.

Extreme Custom Billet Flame Arrestor - Single 4150 / 4500 / Demon Series Oval 

At Hardin Marine we recognize that your flame arrestor shouldnot 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 itto perfection Each unit is then hand polished by ourexperienced master craftsmen to a mirror finish The assembly is then matedwith a 3" tall, USCG approved, high flow, multi-layered stainlesssteel screened element The top and bottom sections rest solidlyon unique standoffs which will not allow the element to be crushedas can happen with common filter elements.

Whether you need standard or a custom dimension, each arrestoris built to exacting specifications. There are no sloppilyadjustable mounting bases or elongated holes to contend with, justpure perfection.

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

Available anodized, powder coated, and private labeled with yourlogo and with breather vent tubes.

Length is 21-1/2, and width is 10-1/2

For custom dimensions clickhere.

Extreme Custom Billet Flame Arrestor - Single 4150 / 4500 / Demon Series Oval 

At Hardin Marine we recognize that your flame arrestor shouldnot 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 itto perfection Each unit is then hand polished by ourexperienced master craftsmen to a mirror finish The assembly is then matedwith a 3" tall, USCG approved, high flow, multi-layered stainlesssteel screened element The top and bottom sections rest solidlyon unique standoffs which will not allow the element to be crushedas can happen with common filter elements.

Whether you need standard or a custom dimension, each arrestoris built to exacting specifications. There are no sloppilyadjustable mounting bases or elongated holes to contend with, justpure perfection.

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

Available anodized, powder coated, and private labeled with yourlogo and with breather vent tubes.

Length is 21-1/2, and width is 10-1/2

For custom dimensions clickhere.

Pair Of Cast Aluminum Hardin Marine / Gil Marine Aluminum Risers

These 4” fully water jacketed one piece cast aluminum risers are the perfect answer to providing cast header style performance while reducing weight over factory cast iron systems. Perfect for all stock replacement applications. Reduces water with exhaust at the exit of the pipe.

Pair of Cast 316L Stainless Steel Fittings
1" NPT To 1-1/4" Straight

• 625-4100
• 625-4105
• 625-4106
• 625-4107
• 625-4109
• 625-4110
• 625-4118
• 625-4178

Pair Of Polished Custom Dimension Bravo Wet Offshore Tailpipes

This 4" O.D x 3-1/2" I.D wet tailpipe is the standard pipe used on the wet offshore system All necessary tailpipe hardwareis included. Sold in pairs.

Additional Information:

• Standard Alpha/Bravo Exhaust Hole Locations
• Custom Measurement Instructions

Priced according to your dimensions.  Submit yourcustom measurements for a price quote.

Pair Of Polished Standard Dimension Bravo Wet Offshore Tailpipes

This 4" O.D x 3-1/2" I.D wet tailpipe is the standard pipe used on the wet offshore system. These fit Gil and Hardin Cyclone exhaust. Sold in pairs.

Additional Information:

• Standard Alpha/Bravo Exhaust Hole Locations
• Custom Measurement Instructions

Pan E-vac System

Designed primarily for drag and circle racing. This system is designed to reduce pressure build-up in the engine crankcase and to reduce oil leaks, while increasing engine performance. Track and dyno tests show significant horsepower increases.

Includes 2 each:
• oil separators/breathers
• breather/filler cap
• grommets
• one-way check valve and weld-in nipple for header collector.

Note: colder plugs work best in supercharged applications and warmer plugs in general performance uses. Most cast iron cylinder heads use tapered spark plug while most aluminum heads use a gasket style plug. This plug is slightly hotter than the similar 750-R5671A-7.

Performance Series Spark Plugs - A/C .460" reach, 5/8" hex, tapered

These are the most commonly used performance plugs today! These are a stock replacement for Mercruiser BBC and SBC motors.

Ribbed Suppressor Seal, which extends resistance and prevents spark 'flash over' and misfire. Nickel-chrome alloy sheathing to help prevent corrosion on center electrode.

• Heat Range: 3
• Resistor Plug: Yes
• Gap (In): 0.040 Inch
• Thread Reach (In): 0.430 Inch

Note: Colder plugs work best in supercharged applications and warmer plugs in general performance uses. Most cast iron cylinder heads use tapered spark plug while most aluminum heads use a gasket style plug.

Note: colder plugs work best in supercharged applications and warmer plugs in general performance uses. Most cast iron cylinder heads use tapered spark plug while most aluminum heads use a gasket style plug.

Note: colder plugs work best in supercharged applications and warmer plugs in general performance uses. Most cast iron cylinder heads use tapered spark plug while most aluminum heads use a gasket style plug.

• Assembly is constructed of stainless steel
• Available in 1/8" and 1/4" sizes
• Has ability to adjust up and down to achieve optimum height
• Bracket allows tube to kick up out of harms way

• Offered in 5", 7", or 10" sizes
• Fits most stainless style speedometer pick-ups
• 5/16"-24 Thread

Pitot Tube Fitting - 1/4" or 1/8" Hose, 5-16"-24 Thread

Plastic Undercover Cup For Stainless LED Pop-up Bow Lights

For use with 680-211-M, Pop-Up Bow Light.

Plastic Undercover Cup For Stainless Pop-up Bow Lights

For use with 680-204-M, Pop-Up Bow Light.

• For Gen 4 BBC Applications.
• 8 Plate Oil Cooler.
• 8' of Push-Loc 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).