Costex Tractor Parts Seal O Ring Part No: 8M4986
$0.26
Costex 8M4986 Seal O‑Ring is a premium 70A silicone VMQ seal designed for Caterpillar cylinder block and cover applications. With 37.6 mm ID and 3.56 mm cross-section, it provides reliable, leak-free sealing under pressure.
Specifications
The Costex 8M4986 Seal O‑Ring is precision-engineered to meet OEM Caterpillar standards for cylinder block and cover sealing. It’s made from 70A silicone (VMQ), offering exceptional resistance to extreme temperatures (–50°F to 300°F), oil, and deformation. Measuring 37.6 mm inner diameter and 3.56 mm cross-section (SAE Dash –222), this durable seal fits securely into OEM grooves, ensuring leak-free performance under pressure. Lightweight and easy to install, it provides reliable, long-lasting service in heavy-duty engine applications.
Weight
0.01
Compatibility
Cylinder Block/Cover applications — measured seal size, fits multiple CAT engines (1980–2010).
Alternative Part Numbers
- Caterpillar 8M4986
- CTP 8M4986
- CTP‑145218
- IPD 8M4986
