The best floor jack rebuild kit is the one that matches your jack’s model, pump design, and seal dimensions. For many 3-ton dual-pump jacks, choose a kit that includes pump parts as well as seals; for older Sears Craftsman jacks, select a model-specific seal kit. The options below cover common 3-ton and Craftsman applications, but compatibility should be confirmed before ordering.
| Kit | Best For | Key Difference |
|---|---|---|
| 3 Ton Repair Rebuild Seal Kit | 3-ton dual-pump jacks needing a plunger and seals | Combined pump plunger and seal kit |
| 51PCS Floor Jack Seal Kit | Horizontal 3-ton jacks needing assorted seals | Assorted O-rings and oil filler plug |
| Craftsman 328.12001/328.12002 Kit | Select 1.5-ton Craftsman jacks | 22-piece model-specific repair set |
| Saillong 3 Ton Dual Pump Kit | Dual-pump jacks needing pump components | Two pump plungers and 17 seals |
| Craftsman 328.12160 Kit | 2-ton Craftsman model 328.12160 | 21 seals for the hydraulic unit |
3 Ton Dual-Pump Plunger And Seal Kit
Best for: Owners of compatible 3-ton dual-pump floor jacks who need to replace a pump plunger along with worn seals. The listing describes the kit as combining a precision pump plunger with a full seal kit, making it more comprehensive than a seal-only assortment.
The listed fit includes Pittsburgh, Torin Big Red, Daytona, and Harbor Freight 3-ton dual-pump models. The seller says the parts are intended to stop leaks and restore pressure when worn sealing components or the plunger are contributing to the problem. Check the jack’s exact model and pump configuration rather than relying on brand name alone.
Limitation: The compatibility claim is specific to 3-ton dual-pump models; it does not establish fit for every jack from the named brands.
Assorted 3 Ton Floor Jack Seal Kit
Best for: A repairer servicing a horizontal 3-ton jack who needs assorted hydraulic seals and an oil filler plug. The feature list describes safety-valve sealing parts, pump-core dust and sealing rings, and O-rings in different sizes. It says the seals are designed to help prevent hydraulic oil leaks and reduce vibration or wear.
This kit may suit a repair where the damaged seal can be matched against the included sizes. Compare the existing parts and the size information in the product images before starting the repair. The product title calls it a 51-piece kit, while its feature description says it provides 17 parts, so verify the expected contents with the seller before purchase.
Limitation: The listing does not identify specific jack models, so it is less straightforward to match than a model-specific kit.
Craftsman 1.5 Ton Seal Repair Kit
Best for: Owners of select Sears Craftsman 328.12001 or 328.12002 1.5-ton floor jacks. Its 22-piece assortment includes seals, O-rings, small sealing components, and steel balls for hydraulic-unit service. This model-specific listing makes it a more targeted choice than a general assortment when the jack’s model number matches.
Replacing aged or damaged seals can address oil leakage, pressure loss, or gradual lowering when worn seals are the cause. Confirm the model number and compare seal dimensions before ordering. The listing notes that some parts may vary in use by jack model or production revision.
Limitation: It is for select 1.5-ton models, not a general-purpose kit for all Craftsman jacks.
Saillong 3 Ton Dual-Pump Rebuild Kit
Best for: Owners of compatible 3-ton dual-pump jacks who need more than replacement seals. The package is described as including large and small low-side pump plungers, cylinders, springs, retainers, and a 17-piece seal kit. It is a better fit for a pump-system rebuild than a kit containing seals alone.
The listed compatible brands include Pittsburgh, Torin Big Red, Arcan, and selected Harbor Freight models. The seller says replacing both plungers and seals can help address reduced lifting power or uneven pumping when worn parts are responsible. Match the exact jack configuration before purchase.
Limitation: The listing specifically says it is not compatible with Daytona 3-ton Low-Profile Super Duty floor jacks.
Craftsman 328.12160 2 Ton Seal Kit
Best for: Owners of a Sears Craftsman 2-ton hydraulic floor jack with model number 328.12160. The listing describes 21 pieces covering seals for the entire hydraulic unit. It may be worth considering when aged or damaged seals are linked to leaking fluid, low pressure, or a jack that will not lift.
Check the model number on the jack before ordering; capacity alone is not enough to confirm fit. This kit is model-specific, which helps narrow the application when the jack’s identification matches.
Limitation: The stated fit is for model 328.12160, so do not assume it fits other 2-ton Craftsman models.
Buying Guide: How To Choose A Floor Jack Rebuild Kit
Does the kit match the jack model?
Start with the jack’s brand, model number, rated capacity, and pump type. A 3-ton capacity does not guarantee that two jacks use the same seals or pump components. For model-specific Craftsman kits, match the complete model number. For multi-brand kits, confirm the exact jack configuration and compare the old parts with the product details.
Do you need seals only or pump components too?
A seal-only kit is a practical match when inspection points to worn or damaged O-rings and sealing parts. If the repair also requires pump plungers, cylinders, springs, or retainers, consider a kit that lists those components. These kits address different repair needs and should not be treated as interchangeable.
What should you check before installing the kit?
- Compare the kit contents and seal sizes with the parts removed from the jack.
- Look for instructions or a parts diagram for the specific jack model.
- Do not rely on brand name or tonnage alone to establish compatibility.
- Follow appropriate lifting and support precautions when servicing a floor jack.
Frequently Asked Questions
Can a rebuild kit fix a floor jack that will not lift?
It may help if worn seals or pump components are causing pressure loss. A rebuild kit cannot be assumed to fix every lifting problem; confirm the cause and match the replacement parts to the jack.
Are floor jack seal kits universal?
No. Seal sizes and pump designs can differ by model, capacity, and production revision. Verify compatibility and dimensions before buying.
Should I replace the pump plunger or only the seals?
Choose a seal kit when the identified problem is limited to seals. Consider a kit with pump plungers when those components are also worn or damaged and the kit is confirmed to fit.
How can I identify the right Craftsman kit?
Read the model number on the jack and match it to the kit listing. The options here cover 328.12001 and 328.12002 1.5-ton models, or model 328.12160 in a 2-ton jack.
What if the product listing gives conflicting kit quantities?
Confirm the package contents with the seller before ordering. One listing here has a 51-piece title but describes 17 parts in its feature details.