471689 Complete Hydraulic Pump Shaft Oil Seal Repair Kit For Excavator Main Pump Assembly Overhaul And Construction‑Site Servicing

1. Quick Details of  seal 471689:

2. 471689 picture:

3. Service part number :

4. FAQ

Q: Can this oil seal work steadily on rotating shaft assemblies?
A: Yes, the specially designed sealing lip fits rotary shafts to block internal lubricant leakage.

Q: What color options do these sealing accessories have?
A: The main shaft seal is black rubber with dark grey metal shell, POM backup rings are off‑white, and matched O‑rings are deep black.

Q: What color appearances do sealing accessories inside this kit show?
A: The main shaft oil seal is black rubber with reddish metal housing, PTFE backup rings are light grey, and supporting O‑rings are matte deep black.

Q: What color do these sealing components look like?
A: The main oil seal is dark brown rubber with matte grey metal housing, PU backup rings are creamy white, and supporting O‑rings are jet black.

Q: What harsh working conditions can this seal set endure?
A: It can stand frequent pressure fluctuation, muddy water splashing, construction dust invasion and sharp temperature shift during long‑time digging and loading operations.

Q: Does this overhaul kit contain all sealing consumables for full pump maintenance?
A: Yes, it includes main pump shaft oil seal, multiple sizes of O‑rings, anti‑extrusion backup rings and thin gaskets to finish one complete main pump repair.

Q: What abnormal signals indicate oil seals need to be replaced?
A: Hydraulic oil leaks from pump shaft end, machine loses digging power gradually, there is constant humming noise and pump housing builds up excessive heat during operation.

Q: What risk will scratch damage bring to electrophoretic coated shell?
A: Once the coating layer is scratched off, bare steel will corrode gradually, which may lead to seal loosening and unexpected oil leakage.

Q: How well can this full sealing kit block mud, gravel dust and hot gear oil mist on muddy outdoor road job sites?
A: The multi-layer flexible rubber lip scrapes thick mud off the shaft surface, the fully enclosed plated metal shell blocks coarse dust particles, and inner auxiliary rubber layers isolate high-temperature oil mist to protect internal precision gears.

5. Exhibition and Wearhous

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