Hardin Marine

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).

• For Gen 4 BBC Applications.
• 8 Plate Oil Cooler.
• 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 4 BBC Applications.
• 13 Plate Oil Cooler with Polished Brackets.
• 8' of Push-On Hose included.
• Includes 625-7703 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 4 BBC Applications.
• 13 Plate Oil Cooler with Polished 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.
• 13 Plate Oil Cooler with Polished Brackets.
• 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).

• For Gen 5/6 BBC Applications.
• 13 Plate Oil Cooler with Polished Brackets.
• 8' of yNlon 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.
• 8 Plate Oil Cooler with Polished Brackets.
• 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).

• For Gen 5/6 BBC Applications.
• 8 Plate Oil Cooler with Polished 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 4 BBC Applications.
• 8 Plate Oil Cooler.
• 10' of Push-Loc Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with choice of Black or Polished.
• 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.
• 8 Plate Oil Cooler.
• 10' of nylon braided Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with choice of Black or Polished.
• 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.
• 8 Plate Oil Cooler.
• 10' of Push-Loc Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with choice of Black or Polished.
• 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.
• 8 Plate Oil Cooler.
• 10' of nylon braided Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Oil Filter Head with choice of Black or Polished.
• 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.
• 13 Plate Oil Cooler with Polished Brackets.
• 10' of push-loc Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Head Mount Oil Filter Adapter in choice of Black or Polished.
• 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.
• 13 Plate Oil Cooler with Polished Brackets.
• 10' of nylon braided Hose included.
• Includes 625-7703 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Head Mount Oil Filter Adapter in choice of Black or Polished.
• Includes 8 Straight and 8 90 Degree Fittings for installation.

• For Gen 4 BBC Applications.
• 13 Plate Oil Cooler with Polished Brackets.
• 10' of push-loc Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Head Mount Oil Filter Adapter in choice of Black or Polished.
• 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.
• 13 Plate Oil Cooler with Polished Brackets.
• 10' of push-loc Hose included.
• Includes 625-7704 Thermostatically Controlled Engine Block Adapter.
• Includes 625-7742/5 Head Mount Oil Filter Adapter in choice of Black or Polished.
• Includes 8 Straight and 8 90 Degree Fittings for installation.