Wheel Loader Cylinder Rebuild Kit Cross Reference for Case
The Case Wheel Loader Seal Kit is manufactured with advanced sealing technology and premium materials, designed to restore hydraulic system efficiency and reliability. It provides an excellent barrier against oil leakage, withstands high pressure and temperature, and ensures long-lasting performance in demanding working environments.
| 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 |
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.
Hydraulic systems are the power source of a Case wheel loader, and seal kits are the key components that prevent oil leakage and maintain internal pressure. A properly fitted seal kit ensures smooth operation of hydraulic cylinders, including the lift, tilt, and steering cylinders, while extending service intervals and reducing unexpected downtime.
Key Features & Advantages
- Premium Sealing Materials – Manufactured with top-grade rubber, polyurethane, and PTFE, each seal delivers high elasticity, wear resistance, and superior compatibility with hydraulic oil.
- Reliable Hydraulic Protection – Prevents leakage in critical areas such as boom, arm, and bucket cylinders, keeping your backhoe loader operating at peak performance.
- Extended Service Life – With advanced molding and heat-treatment processes, these seals offer long-lasting performance, reducing the need for frequent replacements.
- Cost-Effective Maintenance – Helps minimize downtime and repair costs by ensuring consistent sealing performance over long operating cycles.
- OEM-Compatible Fitment – Developed to meet or exceed Volvo factory standards, ensuring accurate fit and easy installation.
Manufacturing Process of Seal Kits
To guarantee consistency and precision, every Case wheel loader seal kit goes through a strict production process:
Precision Material Weighing
Each raw material, including polyurethane, PTFE, and rubber compounds, is accurately weighed according to strict formulation standards. This ensures consistent chemical properties, balanced elasticity, and reliable performance across every seal.
Mold Preparation & Material Placement
High-precision molds are thoroughly cleaned and preheated before material placement. The prepared compound is carefully filled into the mold cavities to avoid defects such as bubbles or uneven density, ensuring flawless shaping of the seals.
High-Pressure Compression Molding
Using advanced compression molding machines, the materials are subjected to high temperature and pressure. This process guarantees excellent dimensional accuracy, uniform density, and the proper hardness required to withstand hydraulic pressure and harsh jobsite conditions.
Rigorous Quality Inspection
Every finished seal undergoes strict inspection procedures, including dimensional checks, surface finish evaluation, and sealing performance tests. Only seals that meet international OEM standards are packaged and delivered, ensuring reliable operation for your machine.
This ensures every seal kit performs to OEM standards or better.
Material & Manufacturing Quality
Each seal kit is made from high-grade NBR (Nitrile Butadiene Rubber), FKM (Viton), and PTFE (Teflon) to deliver outstanding resistance to wear, pressure, and temperature fluctuations. These materials are selected to handle heavy-duty cycles, abrasive working conditions, and hydraulic fluid compatibility, ensuring reliable sealing throughout the equipment’s lifecycle.
Nitrile Rubber Buna(NBR, BUNA-N)
Temperature Range:-30 to 125 ℃
Hardness:60-90 Shore A
Color: Black
Use: Oil & Water Resistance Situation Advantage: Excellent oil resistance, performance and stability, widely used, cheaper
Fluororubber(FKM,FPM)
Temperature Range:-20 to 250℃
Hardness:70-90 Shore A
Color: Black/Brown/Green
Use: Oil & Chemical Resistance Situation
Advantage: Wear resistance, acid and alkali resistance, high temperature resistance situation
Silicone (VMQ )
Temperature Range: -60 to 225 ℃
Hardness: 50-70 Shore A
Color: Red/Black/Blue/White/Transparent, etc
Use: Heat& Food Situation(FDA, RoHS Approved)
Advantage: Good heat resistance, cold resistance, lubrication oil resistance, water resistance safety & reliable to human body
Ethylene Propylene Rubber(EPDM, EPM)
Temperature Range:-50 to 150 ℃
Hardness: 60-90 Shore A
Color: Black
Use: Ozone, water vapor situation
Advantage: Excellent oxidation resistance ozone resistance and erosion resistance
Perfluoroelastomer(FFKM, FFPM)
Temperature Range: -42 to 327 ℃
Hardness:60-95 Shore A
Color: Black / White
Advantage: Long-term, proven performance, can mean less frequent seal changes, repairs and inspections, increasing process and equipment uptime in productivity and yield.
Neoprene Rubber(CR )
Temperature Range:-30 to 125 ℃
Hardness:60-90 Shore A
Color: Black
Use: Oil & Water Resistance Situation Advantage: Excellent oil resistance, performance and stability, widely used, cheaper
Compatible Volvo Backhoe Loader Models
Our Case Wheel Loader Seal Kits are designed for a wide range of models, including:
- Case 521F, 621F, 721G, 821G, 921G, and other series
- Compatible with lift cylinder, tilt cylinder, and steering cylinder applications
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 135352A1 | 1542915C2 | 1542919C1 | 1542919C4 | 1542923C2 | 1543256C1 | 1543260C1 | 1543266C1 |
| 1543267C1 | 1543269C1 | 1543279C1 | 87363451 | 87529743 | 87530718 | 87705824 | 87715786 |
OEM replacement fitment with reference part numbers available upon request
Quality Assurance
Each kit undergoes both laboratory and real-world performance testing, including pressure endurance tests, fluid compatibility tests, and wear resistance evaluation. This ensures operators can rely on long-lasting seals that reduce maintenance costs and maximize uptime.
Maintenance Recommendations
- Regularly inspect hydraulic cylinders for signs of oil seepage or damage.
- Replace seal kits promptly when performance drops to avoid cylinder scoring.
- Always use clean hydraulic oil and maintain correct fluid levels to extend seal life.
- Store spare kits in a cool, dry environment to preserve material properties.
Contact Us
Looking for a reliable replacement for your Case wheel loader hydraulic seal kit? Contact us today for OEM references, technical support, or bulk order inquiries.
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.
