New sealed bearing for installing on your 1968-73 Mercury Cougar or Ford Mustang idler / tensioner pulley. This bearing also came in all of the "service replacement" idler pulley assemblies and is physically larger than the idler bearing for the 1968-69 only idler pulley (68-69 bearing sku: 10827). The center portion of the pulley, where this bearing would press into, has an inside diameter measurement of 1 9/16". On the smaller bearing pulley, this measurement is 1 3/8". Both versions of this bearing will require press fitting. This large bearing fits on the 0.668" shaft. Large and small pulleys are matched to their respective brackets, and cannot be interchanged. Meaning the inside and outside diameters are different for each bearing.
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