0951790 Back-up Ring fit Caterpillar
0951790 Back-up Ring fit Caterpillar
- New aftermarket part
- 30 day returns
- Manufacturer's warranty
0951790 Back-up Ring
The 0951790 back-up ring is a transmission seal ring for Caterpillar excavators and hydraulic mini excavators. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
Fitment
The part is listed for the following Caterpillar equipment models and series:
- Hydraulic mini excavators
- 307-A
- 307B
- 311-A
- 311B
- 311C
- 312-A
- 312B
- 312B L
- 313B
- 315-A
- 315-A L
- 315B
- 315B L
- 318B
- 318B N
- 320 L-A
- 322-A
- 322-A N
- 322N
- 325 L
- 325 LN
- 325-A
- 325-A FM L
- 325-A LN
- E110
- E1120
- E120B
- E180
- E200B
- E240
- E240B
- EL180
- EL240
Specifications
| Part type | Back-up ring for a transmission seal |
| Application | Caterpillar excavator and hydraulic mini excavator transmission sealing assemblies |
| Material | PTFE, polytetrafluoroethylene |
| Cross-section height | 0.12 in |
| Cross-section width | 0.05 in |
| Inner diameter | 1.1 in |
| Recorded weight | 0.1 lb |
| Recorded length | 3.4 cm |
| Recorded width | 3.4 cm |
| Recorded depth | 0.1 cm |
| Operating media listed | Air, engine oil, diesel fuel and coolant |
| Temperature characteristic | PTFE material withstands very high temperatures |
The ring is made from PTFE. This material is specified for use with air, engine oil, diesel fuel and coolant. PTFE can be contaminated or damaged during installation, so the sealing surface, groove and part should be kept clean during assembly.
The dimensions are stated in inches as provided for the cross-section and inner diameter. The recorded length, width and depth values are listed separately in centimetres. The supplied technical data does not specify an installation position, seal kit contents or additional included components.



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