O-rings and oil seals

In trucks and trailers, numerous components are exposed to pressure, movement, or fluids — such as rotating shafts, pumps, engines, hydraulic systems, and transmissions. O-rings and oil seals ensure reliable sealing under these conditions, even in the presence of extreme temperatures, high pressures, and chemical exposure.

An O-ring is a circular elastomer ring that compresses into a groove to create a tight seal. It is widely used in both static and dynamic applications — including brakes, filters, compressors, engine components, and hydraulic lines. Due to their compact size and low cost, O-rings are indispensable in nearly all sealing systems.

An oil seal (also known as a shaft seal or rotary seal) is designed to keep lubricant inside and prevent contaminants from entering around a rotating shaft. It typically consists of a metal housing, a rubber sealing lip, and an internal spring that maintains contact pressure. Oil seals are commonly used in crankshafts, gearboxes, differentials, wheel hubs, and steering units.

A worn or damaged seal can lead to fluid leaks, internal contamination, pressure loss, or even serious damage to bearings and mechanical parts. That’s why regular inspection and timely replacement of sealing components is essential during maintenance or repair.

Key features and benefits:

• Prevents leakage of oil, fuel, air, and coolant

• Protects mechanical components from dirt, dust, and water

• Resistant to heat, pressure, and aggressive fluids

• Made from NBR, FKM (Viton), EPDM, or other high-performance rubbers

• Suitable for engines, axles, transmissions, hydraulics, and more

At Sanders Parts, we offer a wide selection of high-quality O-rings and oil seals in various sizes, profiles, and materials — carefully selected for precision fit, durability, and compatibility.

Prevent leaks, protect your systems, and extend the life of your vehicle.
With sealing solutions from Sanders Parts, you're always covered — kilometer after kilometer.