The Ranger 489PHBFRV is a 4-inch Series 48 helical gear pump featuring bronze bushings, steel shafts, and standard packing with relief valve for heavy-duty tank trailer applications. This precision-built pump delivers up to 460 gallons per minute with heat-treated ductile iron gears providing silent, efficient operation. Designed for industrial fluid transfer, it operates at maximum speeds of 900 RPM with outboard bearings for shaft support and field-adjustable relief valve protection. The pump features outboard bearings for shaft support and field-adjustable relief valve protection.