6V8218 O-Ring fit Caterpillar
6V8218 O-Ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
6V8218 O-Ring for Caterpillar Equipment
The 6V8218 is a standard O-ring seal for Caterpillar engines and machines. It is used as an axial or radial seal to restrict the passage of fluids and help prevent the entry of contamination in compatible assemblies. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The seal is made from NBR nitrile rubber and is specified for applications involving ambient-temperature fuel systems, auxiliary low- and high-pressure LPG systems, hydraulic fluids, power steering systems, and radiator thermostat assemblies. The supplied component is a single standard O-ring; no additional hardware or installation components are specified.
Fitment
The O-ring is listed for Caterpillar engine and machine applications, including the following engine models:
- Caterpillar 3046
- Caterpillar 3054
- Caterpillar 3054C
- Caterpillar 3054E
- Caterpillar 3056
- Caterpillar 3056E
- Caterpillar 3064
- Caterpillar 3066
- Caterpillar 3116
- Caterpillar 3126
Fitment depends on the specific sealing location and assembly configuration. The equipment model and the installed seal position should be checked before installation.
Cross-reference numbers
| CTP SKU | 6V8218 |
| Part number format | 6V-8218 |
| Seal identification | SAE AS568 dash size -125 |
Specifications
| Part type | Standard O-ring seal |
| Equipment brand | Caterpillar |
| Equipment category | Engine and machine applications |
| Main seal material | Rubber |
| Specific material | NBR nitrile |
| Colour | Black |
| Hardness | 90 Shore A |
| Temperature range | -40 to 212 °F |
| Cross-section diameter | 0.1 in |
| Inner diameter | 1.3 in |
| Outside diameter | 1.505 in |
| Size | 125 |
| SAE AS568 dash size | -125 |
| Approximate weight | 0.1 lb |
| Length | 4 cm |
| Width | 4 cm |
| Depth | 0.3 cm |
Application information
The 6V8218 O-ring is intended for sealing duties in systems where a circular elastomer seal is installed in an axial or radial sealing arrangement. Listed applications include ambient-temperature fuel systems, auxiliary LPG systems operating at low or high pressure, hydraulic-fluid circuits, power steering system seals, and radiator thermostat seals.
Compatibility is not specified for automotive or aircraft brake fluids, high-ozone environments, ketones, phosphate ester fluids, strong acids, or direct ultraviolet-light exposure. These conditions should be excluded when selecting the sealing material for an installation.
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