Backhoe Loader Hydraulic Cylinder Rebuild Seal Kits fit Case Brand
The Case Backhoe Loader Seal Kit is a complete hydraulic sealing solution for boom, dipper, bucket, steering, and stabilizer cylinders. Made with high-performance materials, it ensures leak-free operation, long service life, and full compatibility with Case 580, 590, and other backhoe models.
| Material | NBR/ PTFE/ ACM/ VMQ/ FKM/ HNBR/ EPDM/ Silicone and etc |
|---|---|
| MOQ | 5 Pieces |
| Pressure | Up to 690bar(10000psi) |
| Working Temperature | -40–120℃(according to the material) |
| Color | Black/Orange/Brown/White/Brown |
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Kinton Seals is trusted by professionals worldwide for providing high-quality seal kits for excavators, dozers, loaders, and other heavy machinery, ensuring reliable performance and long-lasting durability.

The Case Backhoe Loader Seal Kit is designed to provide reliable sealing solutions for the hydraulic cylinders of Case backhoe loaders. These seal kits are essential for preventing fluid leakage, maintaining hydraulic pressure, and ensuring smooth operation of key components such as boom cylinders, dipper cylinders, and bucket cylinders. Whether used in construction, agriculture, or municipal work, the seal kit helps extend the service life of your machine while reducing maintenance downtime.
Material and Performance
Each seal kit is manufactured from premium materials such as high-strength polyurethane (PU), nitrile rubber (NBR), fluorocarbon (FKM/Viton), and PTFE (Teflon). These materials are carefully selected to withstand high-pressure hydraulic environments, resist wear, and perform under extreme temperature variations. The seals are engineered to provide:
- High resistance to oil and hydraulic fluids
- Durability under high-pressure and high-speed conditions
- Excellent performance in abrasive and dusty environments
- Long service life with reduced maintenance intervals
Application and Compatibility
This seal kit is specifically designed for Case Backhoe Loader hydraulic cylinders, including:
- Boom Cylinder Seal Kit
- Dipper (Arm) Cylinder Seal Kit
- Bucket Cylinder Seal Kit
- Steering & Stabilizer Cylinder Seal Kit
Compatible with a wide range of Case backhoe loader models such as Case 580, 580C, 580D, 580K, 580L, 580M, 590 Super Series, and other similar variants. For accurate fitment, customers are encouraged to check the OEM part numbers or consult with us before ordering.
Our Manufacturing Excellence
Our Case Backhoe Loader seal kits are produced under strict manufacturing standards. Every batch undergoes:

Precision Material Weighing
Each raw material block is carefully weighed with high-accuracy equipment before processing. This ensures that every seal ring starts with the exact material volume required for its specific size and application, preventing inconsistencies in density or performance.

Mold Preparation & Material Placement
After weighing, the prepared material is positioned onto the appropriate mold. Our workshop is equipped with a wide variety of molds to match different seal ring diameters and cross-sections. The correct mold selection guarantees precise shaping, while careful placement avoids defects such as uneven thickness.

High-Pressure Compression Molding
The molds are then set under specialized compression machines, where controlled pressure and temperature are applied. This process allows the material to be fully formed into a durable seal with consistent hardness and elasticity. Strict monitoring ensures every batch meets dimensional accuracy and structural integrity.

Rigorous Quality Inspection
Each batch of seals undergoes rigorous testing after molding. Technicians check for dimensional accuracy, surface smoothness, hardness, and sealing resilience. Any defective products are filtered out, ensuring that only seals with stable performance and long service life proceed to packaging.
OEM Cross Reference
We provide seal kits that can replace OEM part numbers and match factory specifications. If you have the original Case part number, casting number, or cylinder code, we can supply the correct seal kit.
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 110306A1 | 110309A1 | 113133A2 | 122535A1 | 128725A1 | 128728A1 | 131750A2 | 137512A1 |
| 175251A1 | 182218A1 | 191747A1 | 196832A1 | 305352A1 | 318877A1 | 1346411C1 | 1346411C2 |
| 1346411C3 | 1346450C2 | 1542717C1 | 1542874C1 | 1542875C1 | 1542876C1 | 1542877C1 | 1542915C2 |
| 1542919C4 | 1542923C2 | 1543256C1 | 1543260C1 | 1543262C1 | 1543267C1 | 1543269C1 | 1543275C1 |
| 1980375C1 | 1986823C2 | 84209920 | 84222441 | 84222449 | 84222491 | 84235393 | 84257765 |
| 84257788 | 84259218 | 84259219 | 84259220 | 84259221 | 84259222 | 84259223 | 84259224 |
| 84259225 | 84259226 | 84259227 | 84259228 | 84318585 | 84330972 | 86982377 | 87342131 |
| 87414980 | 87418297 | 87428620 | 87428631 | 87428634 | 87428866 | 87428868 | 87428869 |
| 87428871 | 87428872 | 87428874 | 87432407 | 87432412 | 87432516 | 87573868 | 87608671 |
| 87609669 | 87633295 | 87651309 | 87653283 | D148100 | G108486 | G108487 | G110045 |
Benefits of Using Our Seal Kits
- Prevent costly hydraulic leaks and downtime
- Extend the lifespan of hydraulic cylinders
- Improve machine productivity and efficiency
- Reduce overall maintenance costs
- Compatible with multiple Case backhoe loader models
Packaging and Delivery
Each seal kit is carefully sorted, labeled, and packed in moisture-proof bags or small cartons. Kits are then placed in sturdy export cartons or wooden cases for long-distance shipping. Clear labels make identification simple, and OEM reference numbers can be included on the package for easy replacement tracking.
Maintenance Recommendations
- Replace seals at the first sign of leakage to prevent cylinder damage.
- Keep hydraulic oil clean and free from contaminants.
- Store spare seal kits in a dry, cool environment to prevent premature aging.
- Use proper tools when installing seals to avoid damage during assembly.
At Kinton Seals, we understand that reliable delivery is just as important as product quality. Our goal is to ensure that every order of Seal Kits for excavators, bulldozers, wheel loaders, and other heavy machinery reaches our customers safely, on time, and in perfect condition.

Packaging & Protection
- Standard Export Packaging – Each seal kit is carefully packed in moisture-proof and dust-proof bags, ensuring seals remain clean and undamaged during storage and transportation.
- Layered Protection – Kits are placed in sturdy cartons, and for bulk shipments, cartons are further reinforced with pallets and stretch film to minimize impact during handling and transit.
- Customization Options – We provide OEM/ODM packaging services, including branded boxes, barcodes, and special instructions, helping partners strengthen their brand presence in local markets.
- Extra Protection – For bulk shipments, cartons and pallets are reinforced to reduce the risk of damage in transit.
Order Processing & Lead Time
- Standard Seal Kits – For large quantity orders, lead time is usually 7–10 working days, as each kit requires precise matching of every seal, followed by labeling and packaging.
- Custom Seal Kits – For tailored requirements or non-standard models, production and assembly typically take 15–30 days, especially if new tooling or mold development is required.
- Sample Orders – Small batch or sample kits can often be prepared faster, subject to stock availability.
Delivery Options
- Air Freight for urgent orders
- Sea Freight for bulk shipments
- Courier Express (DHL, FedEx, UPS) for small packages and samples


Quick Quote Request
Kinton Seals is trusted by professionals worldwide for providing high-quality seal kits for excavators, dozers, loaders, and other heavy machinery, ensuring reliable performance and long-lasting durability.





