3-Ton Hydraulic Jack Oil Seal Repair Kit – O-Ring & Piston Set

Restore Your Hydraulic Jack with a Complete Seal Repair Kit

Don't replace your jack — repair it! This 3-Ton Horizontal Hydraulic Jack Oil Seal Repair Kit gives you everything you need to stop leaks and get your floor jack working like new. Designed for horizontal 3-ton bottle and floor jacks, the kit includes all the critical sealing components: O-rings, plunger seals, piston seals, ball link pieces, and rocker jack seals — all in one convenient set.

Whether your jack is weeping hydraulic fluid or failing to hold pressure, worn-out seals are usually the culprit. This comprehensive kit replaces those worn parts quickly and cost-effectively, saving you the expense of a full jack replacement.

Key Features

• Complete Repair Set: Includes O-rings, plunger seals, piston seals, ball link seals, and rocker jack seals
• Compatible with 3-Ton Horizontal Jacks: Designed specifically for horizontal-style hydraulic floor jacks rated at 3 tons
• High-Quality Rubber Seals: Durable materials engineered to withstand hydraulic fluid and pressure cycling
• Stops Oil Leaks: Replaces degraded seals that cause fluid loss and pressure drop
• Easy DIY Repair: All necessary sealing components included — no need to source individual parts
• Quantity: 1 complete set as shown

What's Included

• Small O-rings (multiple sizes)
• Plunger piston oil seals
• Ball link seals
• Rocker jack seals
• Full set as pictured

Who Is This For?

This kit is ideal for DIY mechanics, garage enthusiasts, and automotive shops who want to restore a leaking or low-pressure 3-ton horizontal hydraulic jack rather than purchasing a brand new one. It's a smart, budget-friendly solution that extends the life of your equipment.

Made in Mainland China.

Safety & Hydraulic Tool Resources

For best practices when working with hydraulic equipment and vehicle lifting tools, refer to the OSHA guidelines on hydraulic jack safety and the U.S. Consumer Product Safety Commission (CPSC) for product safety standards.

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• 120ml Heavy-Duty Metal Rust Remover & Anti-Rust Spray — keep your jack hardware rust-free
• 100-Pack Disposable Nitrile Gloves – Latex-Free, Oil-Proof — protect your hands during repairs

Learn more: O'Reilly Auto Parts

Frequently Asked Questions

Q: What type of hydraulic jack is this oil seal repair kit compatible with?

A: This repair kit is specifically designed for horizontal 3-ton hydraulic floor jacks. It includes seals for the plunger, piston, ball link, and rocker components common to this style of jack. Please compare the included parts to your jack's existing seals before ordering to confirm fitment.

Q: Will this kit fix a hydraulic jack that won't hold pressure or is leaking oil?

A: Yes — in most cases, a jack that loses pressure or leaks hydraulic fluid has worn or cracked internal seals. Replacing those seals with this complete O-ring and seal kit should restore proper pressure and stop oil leaks, effectively returning the jack to working condition.

Q: How many seals come in this repair kit?

A: The kit ships as 1 complete set that includes multiple O-rings of various sizes, plunger piston seals, ball link seals, and rocker jack seals — all the primary sealing components needed for a full hydraulic jack rebuild as shown in the product images.

Q: Do I need special tools to install this hydraulic jack seal kit?

A: Basic hand tools such as screwdrivers, wrenches, and a rubber mallet are typically sufficient for most hydraulic jack seal replacements. It is recommended to drain residual hydraulic fluid, work on a clean surface, and wear oil-resistant gloves during installation for safety and cleanliness.