The DS-124-3530 connecting rod can be used in the following Caterpillar engine models:
- 3054T (Piston Grade K and Piston Grade L)
- Turbocharged with an engine serial number of 7BJ1 and above
- 3056 and 3056B
- 3056T
- Turbocharged with an engine serial number of 1ML1 and above