9J5131 REPLACEMENT HYD PUMP 621J SCRAPER Fits CATOne New Aftermarket Replacement Hydraulic Vane Pump for Caterpillar (Cat) 621J Wheel Tractor Scraper This aftermarket replacement hydraulic vane pump replaces Caterpillar (Cat) OEM part number 9J5131. The 9J5xxx series vane pumps supply hydraulic pressure to the implement system on Cat wheel tractor scrapers, powering bowl, apron, and ejector functions that are essential to scraper loading and dumping cycles. Keeping the hydraulic pump in proper
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