When you need to stop leaks in seals, gaskets, and O-rings, the first fork in the road is whether you need a precise replacement for one specific cylinder or a broad pile of O-rings for ongoing repairs. The two kits here sit on opposite sides of that decision: a dedicated hydraulic cylinder seal kit for Case industrial backhoes and a 400-piece metric O-ring assortment in nitrile rubber. The right pick depends on whether you're rebuilding a known cylinder or restocking a toolbox.
Quick verdict: If you already know the cylinder-like a Case 580K, 580SK, or 580SL backhoe dipper-go straight to the dedicated seal kit at $35.00. If you want a more flexible assortment for general sealing jobs, the 400-piece metric O-ring kit at $12.74 is the better everyday buy.
| Backhoe Dipper Hydraulic Cylinder Seal Kit | O-Ring Assortment Kit 400Pc | |
|---|---|---|
| Price | $35.00 | $12.74 |
| What's included | Rebuild seals for Case dipper cylinders | 400 metric nitrile O-rings |
| Best for | Exact Case cylinder repair | General metric O-ring jobs |
| Fitment | Case 580K/580SK/580SL dipper | Universal sizes |
Where each wins
- The hydraulic cylinder seal kit wins when you have a Case 580K/SK/SL backhoe with a dipper cylinder that needs exact replacement. It's a complete rebuild set with matching cylinder numbers.
- The O-ring assortment wins on versatility and price. It gives you a wide range of metric sizes for many repair jobs, and it costs considerably less.
BACKHOE DIPPER HYDRAULIC CYLINDER SEAL KIT FOR CASE INDUSTRIAL 580K 580SK 580SL
This is the kit to reach for when you're working on a Case industrial backhoe and you know the cylinder. It's built for the dipper cylinder on the 580K, 580 Super K, and 580 Super L, with a 2.50-inch rod and 5.00-inch bore. The included part numbers (126151A1, 183795A1, G110694, etc.) help you confirm fitment before you start. The trade-off is that it is a specific kit: if your machine isn't on that list or you need a generic O-ring, this isn't the universal stash. It costs more than the assortment, but you're paying for the right parts in one package rather than guessing through an assortment.
O-Ring Assortment Kit 400Pc Nitrile Rubber Metric Sizes Industrial Seals
If your work involves varied sealing tasks, this assortment gives you a big supply for a modest price. You get 400 nitrile rubber O-rings in metric sizes from 4mm to 30mm outside diameter, with thickness options from 1mm up to 3.1mm. The nitrile material resists oil, heat, UV, and wear, and the rings are soft enough to snap into place without special tools. The limitation is in the name: it's an assortment, not a matched rebuild set. You won't find a dedicated cylinder seal configuration, and for a specific Case backhoe cylinder you'd still need the exact seal kit. It's best as a general repair resource rather than a precise machine-specific fix.
Final choice by use case: Choose the hydraulic cylinder seal kit if you're rebuilding the dipper cylinder on a Case 580K, 580SK, or 580SL and want the correct seals without hunting through an assortment. Choose the 400-piece O-ring kit if you need a flexible, lower-priced stock for assorted metric O-ring repairs in plumbing, automotive, or general industrial work.
