Has anybody located a source of Volvo's metric vacuum hose (4.2 and 6.6mm ID) in the aftermarket? This is expensive at the dealer. Using SAE sizes usually means you have to replace all the spring clamps on the ends. Having a direct metric replacement would be great.

4.0, 6.0, etc. in silicone hose can be found at

www.bakerprecision.com
and

www.hosetechniques.com
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1989 740Ti 1986 240DL 1984 244GL

FCP Groton has 3.5, 5.0, 6.6mm vvacuum hose for $150, $2.00, $2.00 per foot.
Bill

My post should have read $1.50, not $150 per foot for the 3.5mm. Age bifocals and thumbs for fingers are an explanation not an excuse :)
Bill

As says the walrus, not paul, use SAE standard size hoses....

As for hose clamps on vacuum hose, I use high quality wire ties, never had one pop under boost, they don't seem to damage the rubber hose, they come in pretty colors, look cool, are inexpensive and seem to last. I pull them tight and cut the tail off close to the locking device. If I need to remove a tight one I just cut the locking device itself with my dykes as to not damage the hose.
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www.fidalgo.net/~brook4

I would think that 5/32" and 1/4" hose would be tight enough that you
could get by without clamps. Might need a little rubber loob to get
them on but they oughta stay.
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George Downs, The "original" Walrus3, Bartlesville, Oklahoma

i use a 3.5 mm braided hose from contitech, i get it from winzer corp. its smaller, but it doesnt need the clamps cause its so much tighter.