Marathon
Oil seal for Marathon LeTourneau B/M214-6029
This oil seal is designed for the hook gearbox assembly on Marathon and LeTourneau equipment, including model B/M214-6029. The part 4013493 prevents lubricant leakage and protects internal components from external contaminants.
Compatible models
Specifications
- Part number
- 4013493
- Brand
- Marathon
The oil seal is a component used in the hook gearbox assembly of Marathon and LeTourneau machinery. Its primary function is to contain lubricant within the gearbox housing, preventing leaks while simultaneously blocking the entry of external contaminants such as dust, water, and debris. By maintaining the integrity of the lubricant, this seal supports the proper operation of the internal gears and bearings within the hoisting mechanism.
This component is compatible with the Marathon and LeTourneau B/M214-6029 gearbox assembly. Oil seals generally consist of an elastomeric sealing lip that maintains contact with a rotating shaft, supported by a metallic housing for secure installation. They are engineered to operate within specific temperature ranges and remain chemically compatible with standard gearbox lubricants.
In heavy machinery, oil seals are positioned at the interface between stationary housings and rotating shafts. Their function is to minimize friction and prevent the loss of fluid, which is necessary to avoid premature wear and overheating of mechanical assemblies. Proper installation ensures that the seal maintains a consistent barrier against environmental factors during continuous operation.

