Wheel Loader Hydraulic Cylinder Seal Kit for Caterpillar
Durable CAT Wheel Loader Seal Kit designed to deliver reliable sealing performance, prevent hydraulic leaks, and ensure maximum efficiency of lift, tilt, and steering cylinders. Built with premium materials, it provides a perfect OEM replacement solution for a wide range of Caterpillar wheel loader 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.
Caterpillar wheel loaders are known worldwide for their strength and versatility, but their performance depends heavily on a robust hydraulic system. Over time, the seals inside hydraulic cylinders wear out due to constant pressure, friction, and exposure to harsh environments. Our CAT Wheel Loader Seal Kit offers a complete replacement package to restore hydraulic integrity, extend service life, and keep your machine running at peak performance. By eliminating leakage and maintaining cylinder pressure, it helps minimize downtime and reduces long-term maintenance costs.
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
Our CAT wheel loader seal kits are manufactured using a strict four-step process to ensure quality and consistency:
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
Every seal in our kit is manufactured from carefully selected high-performance materials, such as nitrile rubber (NBR), polyurethane (PU), and fluorocarbon (FKM), chosen for their excellent resistance to abrasion, heat, and hydraulic fluids. Advanced molding technology ensures each seal meets tight dimensional tolerances for a secure, leak-free fit. With enhanced wear resistance and elasticity, these seals are engineered to withstand high pressure and extreme working conditions, from construction sites to mining operations.
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
Compatibility with Caterpillar Wheel Loader Models
This seal kit is designed to match OEM specifications and is suitable for a wide range of CAT wheel loader models, including:
- CAT 950 Series (950, 950G, 950H, 950K, 950M)
- CAT 966 Series (966G, 966H, 966K, 966M)
- CAT 980 Series (980G, 980H, 980K, 980M)
- CAT 988 Series (988H, 988K)
- CAT 992 Series
Whether you need to replace seals in lift cylinders, tilt cylinders, or steering cylinders, our kit provides an exact fit to restore the original performance of your machine.
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 7X2669 | 7X2703 | 7X2710 | 7X2739 | 7X2747 | 7X2749 | 7X2751 | 7X2752 |
| 7X2760 | 7X2767 | 7X2771 | 7X2791 | 9X6392 | 2549037K | ||
OEM replacement fitment with reference part numbers available upon request
Why Choose Our CAT Seal Kit?
- Reliable Hydraulic Sealing – Prevents leakage and pressure loss under heavy-duty operations.
- Extended Service Life – Engineered for durability, reducing replacement frequency.
- OEM Standard Fitment – Compatible with Caterpillar specifications for seamless installation.
- Cost-Effective Solution – Protects against unexpected breakdowns and extends machine uptime.
- Proven in the Field – Trusted by operators working in construction, quarrying, and mining industries.
Maintenance Tips
To get the best results from your seal kit:
- Replace seals during scheduled cylinder servicing to prevent downtime.
- Regularly check hydraulic fluid condition and replace it at recommended intervals.
- Keep sealing surfaces clean during installation to avoid contamination.
- Monitor your machine for early signs of leaks or pressure loss.
Application Scenarios
Our CAT Wheel Loader Seal Kit is widely used in:
- Construction – Handling soil, gravel, and bulk materials on job sites.
- Mining & Quarrying – Operating in abrasive, high-load conditions.
- Agriculture & Forestry – Assisting in heavy-duty loading and transportation tasks.
- Industrial Operations – Supporting material handling in ports, factories, and warehouses.
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.
