321-5639 108 mm ID Pressure Seal
Cat® pressure seal for the valve cover base provides a safe, reliable fit.
Description
Press-in seals stay fixed in the groove to improve assembly performance and prevent leakage and contamination. They are a custom design specific to the application requirements.
Features
Press-in seals are made of materials compatible with the fluids, temperatures, and pressures in Cat® engines and machines. These materials resist abrasion and extrusion and give the seals excellent compression set resistance.
Cat® sealing systems go through a robust design, testing and validation process. Protect your investment with the latest Genuine Cat® seals.
Applications
Press-in seals are widely used in many static joints on Cat® engines and machines. They are specifically designed for inverted or vertical assemblies.
Specifications
| Overall Width | 108 mm |
|---|---|
| Seal/O-Ring Type | PIP |
| Overall Length | 108 mm |
| Cross-Section Height | 7.3 mm (0.29 in) |
| Cross-Section Width | 4 mm (0.16 in) |
| Inside Diameter | 108 mm (4.3 in) |
| Material | FKM |
| Material Description | FKM rubber has a service temperature range of -40 to 150C and is resistant to air, fuel (including biodiesel), lubricants and engine oil. FKM rubber should not be used in applications requiring water or coolant resistance. |
Compatible Equipment
- Motor Graders: 14, 16M, 16, 18, 14M, 16M3
- Track Loaders: 982
- Compactors: C13B
- Engines: C13, C11, C15, C18
- Dozers: D8N
- Excavators: 349F L, 352, 3508B, 355, 349, 621H, 349D L, 345C, 345D L, 345C L, 345D, 349E, 349E L, 352F, 621K, 349E L VG, 349D, 349D2, 349D2 L
- Wheel Loaders: 980M, 982M
- Off-Highway Trucks: 730, 725, 735
Additional information
| Machine Model | 14, 14M, 16, 16M, 16M3, 18, 345C, 345C L, 345D, 345D L, 349, 349D, 349D L, 349D2, 349D2 L, 349E, 349E L, 349E L VG, 349F L, 3508B, 352, 352F, 355, 621H, 621K, 725, 730, 735, 980M, 982, 982M, C11, C13, C13B, C15, C18, D8N |
|---|---|
| Equipment Type | Excavators, Wheel Loaders, Track Loaders, Dozers, Motor Graders, Off-Highway Trucks, Compactors, Engines |
| Part Source | Genuine OEM |








