Product Introduction 3928624F Input Shaft Oil Seal is a critical sealing component for ISF3.8 engine transmission input shaft. It effectively blocks lubricating oil leaking out from the input shaft assembly, and stops external dirt, muddy water and grit from invading the transmission interior. This aftermarket replacement part addresses oil seepage, lubricant contamination and premature gear wear triggered by aging, hardened or torn original oil seals, keeping the transmission system well lubricated for commercial vehicles.
Product Advantages Constructed from premium fluororubber composite material, featuring outstanding oil resistance, high temperature resistance and anti-aging capability. Precision machining of sealing lip delivers consistent contact pressure against rotating shaft. Reinforced skeleton structure prevents deformation under high-speed rotation and vibration. Every unit passes tightness testing before shipment to ensure stable sealing performance and extend transmission service life.
| Item | Parameter |
|---|---|
| Part Number | 3928624F |
| Product Name | Input Shaft Oil Seal |
| Matching Engine | ISF3.8 |
| Material | Fluororubber with Metal Skeleton |
| Core Function | Anti-leakage & Dustproof |
| MOQ | Negotiable |
| Application | Engine Transmission Input Shaft |
Applicable Models Fit for commercial vehicles equipped with ISF3.8 engine, widely used on light trucks and light commercial cargo transport vehicles.


FAQ
Q1: What signs indicate a failed input shaft oil seal?
A1: Visible oil leakage at the transmission input shaft and reduced transmission oil level.
Q2: Is professional installation required for this oil seal?
A2: Yes, improper installation can easily scratch the sealing lip and cause leakage again.
Q3: Does high working temperature affect this oil seal lifespan?
A3: The fluororubber material can withstand normal operating temperature of ISF3.8 engine.