Replacing pulleys on Serpentine Belt Tensioner - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 02-11-2010, 03:12 PM   #1 (permalink)
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Replacing pulleys on Serpentine Belt Tensioner

Has anyone replaced the pulleys seperately on the tensioner in lieu of replacing the whole unit?
I have replaced the single fixed pulley and have seen the assembly sold for about $65 but would rather replace just the pulleys and not the whole assembly.
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Old 02-11-2010, 03:22 PM   #2 (permalink)
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Unless you have replace the whole unit before I would get the entire assembly. Cheaper than a tow bill. Mine started to go out around 175 k and lucky I caught it before I got stranded.
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Old 02-11-2010, 06:15 PM   #3 (permalink)
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I recall that you can change the bearings in them - but can't remember the art number of the bearings - it may be printed on there.

I just pulled my pully's off from the ranch truck not too long ago - they were pretty dry, so I just lubed them. You can pick the plastic grease keeper off and access the bearings. I just used bearing lube on the end of a zip tie to get it in there.
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Old 02-11-2010, 06:26 PM   #4 (permalink)
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Its a 6203 bearing, a very common size. You can save some money by pressing in new bearings.
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Old 02-11-2010, 07:29 PM   #5 (permalink)
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Auto Zone wants 27.00 for the pulley so I ordered one and it will be here Saturday.
I don't have a press but will look into replacing the bearing after I get the pulley off just to do it and keep it as a spare.
Interesting thing is they showed two pulley's for the Idler Pulley. A smooth and a grooved! My truck has the smooth so I grabbed the grooved one they had in stock and it was 1/2 bigger then the grooved one on the tensioner.
Probably would have worked but I ordered the other one which I hope has a diameter of 3 1/4".
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Old 02-11-2010, 07:31 PM   #6 (permalink)
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should this be PM? (I have 160K+) I have a 3 ton and 12 ton press and many many bearings incl 6203's. How many and what types do I need to replace all???
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Old 02-11-2010, 07:34 PM   #7 (permalink)
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Originally Posted by TXANGLER View Post
should this be PM?
Yes it should.
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Old 02-11-2010, 08:01 PM   #8 (permalink)
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When and are they all 6203's and how many?? I am going to do mine and Pop's 00 at the same time.
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