OTC Tools OTC 4033 Vanguard Jr Two Stage High Pressure Electric Pump. OTC Tools. Combines compact size and light weight with 2-stage high performance. Designed for operating pressures up to 10000 PSI. Vanguard Jr. gives you just what you need: 2-stage flexibility with high performance, and a selection of units and options that lets you tailor the pump to your needs. Specifications: Vanguard Jr. two-stage hydraulic pump with 3-position/4-way valve and 6ft. remote motor control. 1 gal. of oil supplied. Double-acting ram. .45 Gallon reservoir. Email for product availability.