How to Connect Heater Core to a Firewall Bulkhead
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The following are components needed to plump a heater core to the back of a Aeroflow or other firewall bulk heads. We convert the 3/4" heater core tube to 5/8" Barb to enable connection to bulkheads with 5/8" rear barb attachment.
Note: For Heater Core tubes with a Barb use Barb Adapters
To convert a 3/4" Heater core tube With a Barb. Use a 3/4" to -10AN Barb Adapter. To the Barb Adapter connect a Female -10AN to 5/8" Hose Barb Fitting. To the Hose Barb Fitting connect 5/8" Push Lock Hose, clamp required. Connect hose to back of the 5/8" Barb to #10 A/C Firewall Bulkhead. clamp required.
To convert a 5/8" Heater core tube With a Barb connect 5/8" Push Lock Hose, clamp required. Connect the hose to the back of the 5/8" to #10 A/C Firewall Bulkhead.
NOTE: For Heater core tubes with No Barb use Tube Adapters
To convert a 3/4" Heater core tube with NO barb. Use a 3/4" to 12AN Tube Adapter. To the Tube Adapter connect a Female -12AN to 5/8" Hose Barb Fitting. To the Hose Barb Fitting connect 5/8" Push Lock Hose clamp required. Connect to the 5/8" Barbs on the back of the 5/8" Barb to 10 A/C Firewall Bulkhead, clamp required.
To convert a 5/8" Heater core tube with NO Barb. Use a 5/8" to -10AN Tube Adapter. To the Tube Adapter connect a Female -10AN to 5/8" Hose Barb Fitting. To the hose Barb Fitting connect 5/8" Push Lock Hose clamp required. Connect to the 5/8" Barbs on the back of the 5/8" Barb to 10 A/C Firewall Bulk Head. Clamp required.
To convert the #10 A/C ports on the engine side of the firewall bulkhead to -10AN use 2, A/C O-ring to AN Adapters. 2 required, 1 per package, order 2
Clamps and Clamp Pliers available on this page.