Air conditioning belt tensioning pulley with new bearing. This adjustable bracket and pulley was used on all 1970-73 351 engines that came with A/C, as well as 1970 428CJ & 1971 429CJ. This part often has a casting number of D0AA-8A617-C1 but not always. This adjustable idler pulley is identified by having the large bearing pulley. Same as the C8AZ-8678-A adjustable idler pulley only with a small bearing pulley.
We also offer a bearing replacement service to rebuild your adjustable idler pulley, see item 27539.
Ford part # D0AZ-8678-C.
*NOTE* If concours correctness is not a concern, we offer used Ford
service replacement air conditioning belt tensioning pulleys, these are
in every way the same as the D0AA-8A617-C1 bracket and pulley. Same
large bearing, but carries a casting number that starts out D5..., or
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