Saillong 3 Ton Dual Pump Floor Jack Rebuild Kit — Large & Small Pump Pistons with 17-Piece Seal Set, Springs

If your dual-pump floor jack is losing pressure, pumping unevenly, or leaking hydraulic fluid, this complete rebuild kit provides the internal components needed to renew performance without buying a new jack. The kit combines matched large and small pump piston assemblies, return springs, and a collection of O-rings, plugs, retainer rings and pads so you can rebuild the pump stage that controls lift and pressure. Materials are chosen for wear and corrosion resistance to handle workshop conditions and repeated cycles.

What parts are included and why do they matter?

The kit contains two pump piston assemblies (large and small), two return springs and a full 15-piece set of O-rings, seals and retaining parts — 17 pieces total. Replacing worn pistons and seals addresses the most common causes of pressure loss and sluggish pumping.

• 1 large pump piston assembly and cylinder sized to restore high-pressure action
• 1 small pump piston assembly and cylinder for the low-side pump stage
• 2 return springs to reestablish proper plunger return tension
• 15 sealing/retaining parts including oil seals, nylon stoppers, C-rings and base pads

How will this rebuild kit improve jack performance?

Replacing both plungers and their seals regenerates hydraulic pressure balance and pumping smoothness. New seals reduce internal leaks while fresh springs and properly fitting cylinders restore consistent stroke return and lift reliability.

• Stops common internal leaks that reduce lifting capacity
• Restores smoother, more consistent pumping action
• Improves stable lift under rated loads by rebuilding the pump stage

Is it compatible with my floor jack and how do I check fit?

The kit is designed for many 3-ton dual-pump floor jacks — including common Pittsburgh, Torin Big Red and Arcan models — but it’s not universal. Compare the piston and cylinder dimensions and seal layout of your original parts to the listed measurements before ordering to make sure parts match.

• Large pump plunger: 2.88" × 0.86" (with seals); large cylinder: 2.59" × 1.19"
• Small pump plunger: 2.88" × 0.59" (with seals); small cylinder: 2.64" × 1.06"
• Not compatible with Daytona 3-Ton Low-Profile Super Duty models — compare dimensions first

How difficult is installation and what tools or steps are required?

Installation is straightforward for anyone comfortable with small hydraulic repairs. Basic hand tools and some grease are required; the kit includes the seals and retainers, and the procedure follows common pump rebuild steps.

• Remove the old cylinder assembly and fit the new cylinder securely
• Insert steel packing into the plunger and secure with the C-ring
• Apply grease to plunger and cylinder for smooth operation before assembly
• Insert retainer, plunger and spring into cylinder to complete rebuild

Who is this for: This rebuild kit is aimed at DIY mechanics, home garage owners and professional shops that service 3-ton dual-pump hydraulic floor jacks and want a cost-effective repair option. If your jack shows reduced lift, slow pumping, or oil seepage and you can verify dimensional compatibility with your originals, the Saillong kit gives you the internal hardware needed to return the jack to reliable operation and extend its service life.