 Fresh Air Blower Connecting Hose, Diameter |
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| DennisV |
  Mar 2 2026, 01:13 PM
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Senior Member  Group: Members Posts: 884 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California 
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Can someone tell me what the correct diameter and length is for the connecting hose coming out of the fresh air blower to the control box? I don't see 914-571-123-10 listed in Parts Vault. It is also NLA everywhere I look.
The hose on the other side of the control box is a different part number (914-572-123-10). When I go to popular parts suppliers, I see conflicting sizes of 80mm and 60mm diameter. Stoddard offers an original looking paper style 60mm x 445 for $40 each. Has anyone tried what appears to be a 911 hot air tube superseded part number 901-571-347-32? I've had mixed results using superseded part numbers. Thanks. P.S. Not to be confused with Engine Compartment Blower Hose. |
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| DennisV |
Apr 1 2026, 05:11 AM
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Senior Member Group: Members Posts: 884 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California
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Some details now that I'm back at the car.
The OD of the tubes you connect to are ~60.25mm (2 3/8"). Hose length is 190-200mm (7 7/8"). A bit hard to measure accurately given the accordion nature of it. The original hose from our 1970 914-6 is black paper outer with shiny foil inside. By comparison, a hose I took off a 1974 914-4 is all plastic.  Added to parts vault. |
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