1S1225 Silicone O-Ring fit Caterpillar
1S1225 Silicone O-Ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
1S1225 Silicone O-Ring for Caterpillar Equipment
The 1S1225 is a silicone O-ring used as an axial or radial sealing component in Caterpillar equipment. It is intended to prevent leakage and the entry of contaminants in applicable sealing points. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
The seal is listed for Caterpillar cold planers, engine machines, and engine generator sets. The available fitment information identifies the equipment models and series below; installation should be matched with the sealing location and the dimensions of the removed part.
Fitment
- Caterpillar PR-450C cold planer
- Caterpillar 3208 engine machine
- Caterpillar 3408 engine machine
- Caterpillar 3408C engine machine
- Caterpillar 3408E engine machine
- Caterpillar 3412 engine machine
- Caterpillar 3412E engine machine
- Caterpillar 3508 engine machine
- Caterpillar 3516 engine machine
- Caterpillar engine generator sets associated with the listed applications
The listed equipment applications cover several Caterpillar engine and machine configurations. The same O-ring may be used in different sealing positions depending on the specific equipment arrangement. Model identification alone should therefore be checked together with the part number and seal dimensions before installation.
Cross-reference numbers
- 1S-1225
The part is identified by SKU 1S1225 and by the hyphenated number 1S-1225. These number formats refer to the same O-ring designation in the supplied parts information.
Specifications
| Part type | O-ring sealing component |
| Equipment brand | Caterpillar |
| Part category | Hardware; standard seal |
| Sealing function | Axial or radial sealing against leakage and contamination |
| Material | Silicone rubber |
| Hardness | 70 Shore A |
| Cross-section diameter | 0.21 in |
| Inside diameter | 4.23 in |
| Outside diameter | 4.645 in |
| Length | 15.24 cm |
| Width | 20.32 cm |
| Depth | 2.54 cm |
| Temperature range | -50 to 300 °F |
| Color | Yellow |
| Weight | 0.1 lb |
Application information
The supplied specifications identify this O-ring for electrical system seals, high-temperature air seals, and high-temperature stationary grease seals. Its 70 Shore A silicone construction and stated operating range apply to the part specification provided for number 1S1225.
Before fitting, compare the replacement O-ring with the removed seal for cross-section, inside diameter, outside diameter, material, and sealing position. The dimensions supplied for this part are 0.21 inches for the cross-section, 4.23 inches for the inside diameter, and 4.645 inches for the outside diameter.
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