Guangzhou Opal Machinery Parts Operation Department vivianwenwen8@gmail.com 86-135-33728134
Product Details
Place of Origin: China
Brand Name: OUB
Certification: ISO9001
Model Number: 8H-7521
Payment & Shipping Terms
Minimum Order Quantity: 10
Price: Negotiable
Packaging Details: PP Bag Inside.outer is carton with film wrapped.
Delivery Time: Within 5-15 days after getting your desposit
Payment Terms: L/C,D/A,D/P,T/T,Western Union
Supply Ability: 1000Pcs
Part No.:: |
8H-7521 |
Part Name:: |
O RING |
Machine: |
Truck |
Material: |
NBR |
Color: |
BLACK |
Model: |
561C PL61 572F 572G |
Part No.:: |
8H-7521 |
Part Name:: |
O RING |
Machine: |
Truck |
Material: |
NBR |
Color: |
BLACK |
Model: |
561C PL61 572F 572G |
1. Quick Details of seal 8H-7521:
| Part NO. | 8H-7521 |
| Machine | truck |
| Size | 91.67 mm |
| Material | NBR |
| Oil seal type | O RING |
2. 8H-7521 picture:
![]()
3. Service part number :
| PART NO. | PART NO. | Part NO. |
| 1672235 | 5P2235 | 8C5176 |
| 7M8485 | 7D-9014 | 1790464 |
| 2287089 | 5W4819 | 277-9940 |
| 617540 | 4420366 | 152-3968 |
| 335879 | 1011983 | 326-7289 |
4. FAQ
Q: Which construction machine can adopt the o-ring with part number 8H-7521?
A: This 8H-7521 o-ring is a sealing component designed for the fuel filter base joint of skid steer loaders.
Q: What spare part category does the component marked 8H-7521 fall into?
A: 8H-7521 belongs to the o-ring category and performs static sealing at the fuel filter mounting interface.
Q: What raw material is used to manufacture this o-ring?
A: It is made of nitrile rubber, which owns good fuel resistance and keeps steady elasticity under temperature changes.
Q: What is the main sealing purpose of this o-ring on the fuel filter base?
A: It blocks fuel leakage from the connection surface and stops air from entering the fuel delivery circuit.
Q: Where is this o-ring installed on the fuel filter assembly?
A: It is seated inside the annular groove between the filter base and filter housing.
Q: What working condition will accelerate the aging of this fuel system o-ring?
A: Long-time contact with diesel fuel and frequent temperature swings on the engine compartment.
Q: Can this o-ring resist minor pressure fluctuation of the fuel supply system?
A: Yes, it is engineered to fit the low-pressure working environment of the skid steer fuel circuit.
Q: What abnormal sign indicates this o-ring has lost sealing performance?
A: Visible fuel seepage at the filter base and difficult engine starting can be observed.
5. Exhibition and Wearhous
![]()
![]()
![]()
Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More