Excavator Parts Hydraulic Seal Kit for John Deere Digger
High-performance hydraulic seal kit designed specifically for John Deere diggers. Built with premium materials, these kits provide superior sealing, leakage prevention, and extended cylinder life in heavy-duty excavation work.
| 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 seal kits are essential to the performance of John Deere diggers, as they maintain fluid pressure within cylinders and protect against contamination. A reliable seal ensures that boom, arm, and bucket cylinders perform smoothly under high-pressure conditions. Without proper sealing, hydraulic oil leakage, internal wear, and reduced machine efficiency can quickly occur.
By using a John Deere-specific hydraulic seal kit, operators ensure:
- Stable sealing performance even under heavy loads
- Reduced downtime due to leakage or component failure
- Extended hydraulic cylinder and piston rod lifespan
Manufacturing Process & Quality Control
Our hydraulic seal kits are produced under strict standards, ensuring consistent quality across all batches.
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 Fitment for John Deere Diggers
Our hydraulic seal kits are compatible with a wide range of John Deere digger models, including:
- John Deere 120D / 130G
- John Deere 200D / 210G
- John Deere 240D / 250G
- John Deere 350D / 350G
- John Deere 470G and similar series
OEM Reference Numbers: Available on request or matched according to your machine’s part codes.
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 4485612 | 4634034 | 4639939 | 4640107 | 4640118 | 4649751 | 4649752 | 4652138 |
| AH148785 | AH173457 | AH225135 | AH225136 | AH225137 | AT264439 | FYA00001398 | FYA00006596 |
| FYA00006597 | TH109366 | ||||||
If you have a specific OEM part number or cylinder code, our team can cross-check and provide the correct replacement kit.
Quality Assurance & Testing
Every seal kit undergoes multiple test cycles:
- Pressure Testing – Verifies sealing reliability under operating loads
- Leak Prevention Tests – Simulates extreme cylinder movement
- Durability Testing – Ensures longevity in demanding excavation conditions
This strict testing process guarantees consistent performance and reduced maintenance costs.
Application Scenarios
John Deere digger hydraulic seal kits are suitable for:
- Heavy excavation in construction and mining sites
- Earthmoving and slope grading
- Quarrying and rock handling
- Agricultural land preparation and drainage projects
These kits provide reliable performance whether operating in muddy, rocky, or dusty environments.
Material Overview for Seal Kits
Each John Deere hydraulic seal kit is crafted from high-grade materials engineered to withstand pressure, heat, and abrasive working environments:
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
These materials are carefully matched to John Deere’s cylinder tolerances, ensuring an exact fit and reliable sealing performance.
Maintenance Recommendations
To maximize the service life of your John Deere hydraulic seal kit:
- Regularly check for leaks around cylinder heads
- Keep hydraulic oil clean and replace according to maintenance schedules
- Inspect piston rods for scratches or bending that could damage seals
- Replace seals as soon as wear or deformation is detected
Maintenance Recommendations
- OEM-quality fit and material compatibility
- Wide model coverage for John Deere diggers
- Enhanced durability and sealing performance
- Professional packaging for export and storage
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.
