AP4282 Gearbox Oil Seal - Suitable for leak-proof sealing rings in engineering machinery
The AP4282 rotary gearbox oil seal is a high-performance seal used in gearboxes, drive shafts, or rotating shafts. It primarily prevents lubricating oil leakage and blocks dust and contaminants from entering bearings and the gearbox interior. This oil seal features a high-quality rubber and metal skeleton combination structure, providing excellent oil resistance, sealing performance, and wear resistance. It is widely used in the sealing and maintenance of engineering machinery, hydraulic gearboxes, and power transmission components.
| Part Number |
AP4282 |
| Type |
Rotary Gearbox Oil Seal |
| Material |
Rubber sealing lip + metal skeleton |
| Function |
Prevents lubricating oil leakage and isolates contaminants |
| Typical applications |
Gearboxes, hydraulic transmission systems, rotary shaft seals |
Features and Advantages
• High-efficiency sealing performance: Effectively prevents lubricating oil leakage and external contaminant ingress.
• Oil- and heat-resistant materials: Utilizes oil-resistant rubber and a metal skeleton for long-term stability.
• Wear-resistant design: Enhanced lip structure improves wear resistance.
• Multi-purpose applications: Suitable for gearboxes, hydraulic pumps, and rotary shaft sealing environments.
Maintenance Recommendations
Regularly check the seal condition:Regularly check the oil seal lip for cracks, hardening, or deformation.
Keep the lubrication system clean:Ensure the lubricating oil inside the gearbox is clean and free of impurities to reduce oil seal wear.:
Inspect the mounting surfaces:Keep the shaft and bore surfaces smooth and free of scratches during installation to prevent oil seal damage.
Avoid prolonged high-temperature operation:Prolonged high-temperature operation may accelerate rubber aging; operating temperature should be controlled.
Replace aging oil seals promptly:If leaks, abnormal noises, or abnormal lubricant consumption are detected, the oil seals should be replaced immediately to avoid damage to the inside of the gearbox.






Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: Do you test all products before shipping?
A2: Yes, we conduct 100% testing before shipping.
Q3: Which engine models is this Rotary Gearbox Oil Seal compatible with?
A3: This product is designed for specific diesel engine models. If you can provide the engine model or original part number, we can confirm compatibility before shipping to avoid incompatibility issues.
Q4: Can you provide cross-reference information for OEM part numbers?
A4: Yes, we support original part interchange. Please provide the original part number, and we will verify the replacement part accordingly.
Q5: What should I do if there is a problem with the product?
A5: Our products undergo professional testing and are of very stable quality. If you do find any problems, please contact us. We have a professional after-sales team to help you solve the problem.
Why Choose Us?
• Over 20 years of experience specializing in construction machinery, engines, and parts – with stable experience supplying mainstream brands and models.
• Extensive experience in model matching enables us to provide customers with accurate parts selection, reducing procurement risks.
• A long-term, stable, and reliable supply system ensures reliable product sourcing and meets continuous procurement needs.
• For product information or quotations, our professional team will provide you with detailed answers immediately upon receiving your request.