Radiator hose ID

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Dennis_Brown
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Radiator hose ID

Post by Dennis_Brown » Sun Jul 20, 2025 9:25 pm

What is the inside diameter for upper and lower radiator hoses for a 26 ?
Was the I D the same for all years?
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RajoRacer
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Re: Radiator hose ID

Post by RajoRacer » Sun Jul 20, 2025 9:42 pm

2" for the outlet - 1 & 3/4" for inlet.
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TRDxB2
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Re: Radiator hose ID

Post by TRDxB2 » Mon Jul 21, 2025 1:07 am

Dennis_Brown wrote: ↑
Sun Jul 20, 2025 9:25 pm
 What is the inside diameter for upper and lower radiator hoses for a 26 ?
Was the I D the same for all years?
Rajo gave the diameters. But there is a different in length. Vendors sell the upper hose, 4", to fit '26-'27 but may need to be trimmed a bit for earlier models. Water Outlet to radiator neck dependent.

Model T
Early models (17-19) 3-1/4" long hose
Later models (19-27) had a 3-1/2" or 4" long hose,

Model A 1928-29
Short lower hoses are 1-3/4" I.D. x 3-1/2" long
Upper hose is 2" I.D. x 7-1/4" long.
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DanTreace
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Re: Radiator hose ID

Post by DanTreace » Mon Jul 21, 2025 1:34 pm

All years '17-'27

#3006 Cyl head inlet hose (upper) 2" Dia. x 4" L. (Brass radiator, '09-'16 2" Dia. x 3 1/4" L)

#3944 Outlet hose(s) (lower) 1 3/4" Dia. x 2 3/4" L
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