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Gaskets & Sets - Powerhead & Upper Case Gasket

Replacement Oil Adapter Inlet For Hardin Thermostatic Oil Adapters
Your Price:
$54.99

Replacement Oil Adapter Inlet For Hardin Thermostatic Oil Adapters

625-7766

Replacement inlet fitting for Hardin thermostatic oil adapters 625-7703 and 625-7704.

Service Kit for Hardin Thermostatic Oil Adapters
Your Price:
$17.99

Service Kit for Hardin Thermostatic Oil Adapters

625-7706

This handy kit contains all the o-rings to rebuild Hardin Thermostatic oil adapters 625-7703 and 625-7704 .

Stainless Steel Oil Filter Bypass Eliminator
Your Price:
$59.99

Stainless Steel Oil Filter Bypass Eliminator - BBC Gen 4 and SBC

625-7918

Stainless Steel Oil Filter Bypass Eliminator - BBC Gen 4 and SBC

This strong stainless steel mount does not have a bypass so it eliminates the possibility of unfiltered oil entering the engine while replacing the weak and often failed factory unit.

When a marine engine is installed in the bilge of a boat there is little or no access to the bottom of the engine therefore a remote mounted oil filter is required.  An oil filter block off adapter must be bolted on the original oil filter location to accomplish this.  These block off adapters are constructed of stainless steel.  They are completely O-ringed on the sealing surfaces to eliminate oil leaks, copper sealing washers are NOT used under the mounting bolt heads.


Washer, Crush Oil Adapter, Gen 2
Your Price:
$2.89

Washer, Crush Oil Adapter, Gen 2

625-7768

Washer, Crush Oil Adapter, Gen 2

Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Side Inlet Gen 6 BBC
Your Price:
$139.99

Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Gen 5/6 BBC

625-7916

Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Gen 5/6 BBC

​This Hardin Marine designed engine oil adapter is the preferred choice of the most respected engine builders worldwide. Manufactured from 6061-T6 billet aluminum, these adapters provide large 3/4" NPT horizontal side inlets and outlets while providing easy access for leak-proof operation. The black hard anodized finish is attractive while providing corrosion protection.


Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Side Inlet Gen 4 BBC & SBC
Your Price:
$129.99

Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Side Inlet Gen 4 BBC & SBC

625-7914

Xtreme High Flow 3/4" NPT Side Inlet Oil Block Adapter - Side Inlet Gen 4 BBC & SBC

This Hardin Marine Designed engine oil adapter is the preferred choice of  respected engine builders worldwide. Manufactured from 6061-T6 billet aluminum, these adapters provide large 3/4" NPT horizontal side inlets and outlets while providing easy access for leak-proof operation. The black hard anodized finish is attractive while providing corrosion protection.

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