This premium oil seal repair kit is manufactured with high-quality NBR or FKM raw rubber for outstanding oil resistance and abrasion resistance.
Every sealing part is precision machined to OEM dimension standards, ensuring tight fit and stable assembly without oil leakage.
It withstands high temperature and high-pressure working conditions, effectively stopping shaft leakage for hydraulic cylinders, gearboxes and conveyor idlers.
The kit contains all matched seals, O-rings and gaskets required for one-stop overhaul, greatly improving maintenance efficiency.
Durable structure extends service life of mechanical equipment and cuts your long-term repair replacement costs.
These are just a few of the sizes. And we can also custom the size of your requirements.
Please contact us to tell me your request.
| Description |
Application |
Equipment Model |
| SEAL KIT |
CYLINDER & MTG GP-COUPLER |
416C, 416F, 420D, 420E, 420F, 424D, 426C, 428C, 430D, 430E, 430F, 432D, 432E, 432F, 434E, 436C, 438C, 442D, 442E, 444E, 444F, 906H, 906H2, 907H, 907H2, 908H, 908H2, 910K, 914K, 924G, 924GZ, 924H, 924HV |
| KIT SEAL-HYD |
CYLINDER GP-HYDRAULIC |
303.5D, 303.5E, 303E CR, 304D CR, 304E, 305.5D, 305.5E, 305D CR, 305E |
| KIT SEAL-HYD |
SUSPENSION GP-REAR |
773G, 773G LRC, 775G, 775G LRC |
| KIT SEAL-HYD |
CYLINDER GP-BOOM |
303E CR |
| KIT ROD SEAL |
CYLINDER GP-BUCKET |
305.5E |
| KIT-SEAL |
CYLINDER GP-HYDRAULIC |
415F2 IL |
| KIT SEAL-HYD |
CYLINDER GP-BUCKET & BOOM |
336F |
| KIT SEAL-HYD |
CYLINDER GP-TILT |
950M, 962M, 966M, 966M XE, 972M, 972M XE |
| KIT SEAL-HYD |
CYLINDER & SEAL GP-BUCKET |
320 |
| KIT SEAL-HYD |
CYLINDER & SEAL GP-BUCKET |
336 |
| KIT SEAL-HYD |
CYLINDER & SEAL GP-STICK |
M315GC |
| KIT SEAL-HYD |
CYLINDER & SEAL GP-BUCKET |
313, 315, 316, M314, M315, M315GC |
| KIT SEAL-HYD |
CYLINDER & SEAL GP-BOOM |
315 |
| KIT SEAL-HYD |
CYLINDER GP-BUCKET |
216, 226, 232, 236, 239, 242, 246, 247, 249, 252, 256, 257, 259, 262, 272, 277, 279, 287, 289, 297, 299 |
| KIT SEAL-HYD |
CYLINDER GP-TILT |
908 |
| KIT SEAL-HYD |
CYLINDER GP-BACKHOE BUCKET |
415, 416, 420, |
| KIT SEAL-HYD |
CYLINDER GP-BOOM |
415, 416 |
| KIT SEAL-HYD |
CYLINDER GP-STICK |
415, 416 |
| KIT SEAL-HYD |
HYDRAULIC CYLINDER |
310, 315, 325, 410, 710, 620, 670, 672, 770, 772, 870, 872, 250, 300, 444, 724, 950, 9RX, 643, 648, 748, 753, 759, 843, 848, 948, 655, 850, 9470, 9520, 9530, 9570, 9620, 9630 |
Detailed Photos




USAGE ENVIRONMENT
APPLICATION AREA
Complete specifitions and wide appliication range
Company Profile
ABOUT US
We specialized in the development and production of sealing systems which were used in the Metallurgical,Electrical,Auto, Engineering machinery, Light industrial machinery and Electrical appliance manufacturing industries. Doking focus on customers' needs,as a dependable partner and reliable supplier to help you resolve supply or technical problems ,and improve the performance of your equipments or your business. When you are facing emergency repairs situation or urgent orders,the highly responsive team of Doking seals will offer you very short lead time.
Our company specialized in tc, tb, ta oil seal, hydraulic oil seal, crankshaft oil seal, valve stem oil seal, high pressure oil seal, oring, gaskets and other rubber parts which can meet your multifarious demands. We own various equipment, like modeling, metal surface processing, anti-errors in burdening, refining rubber, PTFE sintering, PU presynthetics, vulcanization, edge trimming, experiment testing, material storage in constant temperature, etc. The equipment for design, development, production is advanced and complete. We can also produce according to your samples and the quality can be absolutely guaranteed.Doking has a global sales network and we have more than 20 years experience ,and our seals have been sold to more than 60 countries or areas ,Such as America, England, Canada, Australia, Russian Federation ect . We adhere to the management principles of quote& Quality first, customer first and credit-based" Since the establishment of the company and always do our best to satisfy potential needs of our customers. It is striving for meeting the customers′ request and surpassing their expectation by depending on all staff participate, conducting Zero Defect manage-ment, controlling process strictly, improving processes continuously, quality products and service.
Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force.
Packaging & Shipping

Q1. What is the payment term?
A: We accept a T/T 30% deposit and a 70% balance of a current bill of lading or a letter of credit.
Q2. What is the normal delivery time for product orders?
A: The average delivery time of the sample is 1-2 weeks. If the mold production is involved, the delivery cycle of the production mold is 10 days, and the average production time after the sample is approved is 1-2 weeks.
Q3. What is your standard packaging?
A: All goods will be packed in PE bags and then packed in cartons and
filled with trays. Special packaging methods are accepted when needed, but charges may apply.
Q4. Which certificate do you have?
A1: we have passed ISO, still applying for more patents.
Q5: How to check the quality of bulk orders?
A1: Our inspection procedures include, first inspection/patrol inspection/initial inspection/full inspection/shipment inspection.
A2: We provide quality certification to all customers before delivery, such as measurement reports, material data sheets, etc.
A3: We accept third party inspections such as SGS, TUV, INTERTEK, BV, etc.
Q6: How do I choose a raw compound for my application?
A: With years of experience in using a variety of materials, we can help you choose the material that best suits your needs, keeping in mind the cost of materials.
Q7: Can you provide materials of different colors?
A: Yes, we can produce custom molded rubber and silicone rubber products in different colors. Color codes are required when ordering.
Q8: From which side can you produce which materials?
A: NBR, EPDM, silicone, FKM, NEOPRENE (CR), NR, IIR, SBR, ACM, AEM, fluorosilicon (FVMQ), FFKM, liquid silica gel, and the like.