BEARING, ROLLERSpecifications Item Description This roller bearing (7021239) is a replacement component for the Piston Pump Assembly in JLG 450AJ and 450A aerial work platforms. The bearing measures 3. 5in L x 3. 5in W x 0. 68in H and weighs 1. 31lb, providing essential support and rotation functionality within the engine system. Use this part when servicing or rebuilding the piston pump assembly on these JLG lift models. Skyworks is an authorized reseller of JLG
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