The DS-5I-7719 Cylinder Head Valve Lock Half can be used in the following Caterpillar engine models:
- 3046 naturally aspirated with direct injection with an engine serial number of:
- 5XK1 and above
- 5XK10800-UP and above
- 5XK109-UP and above
- 5XK12250-UP and above
- 5XK30700-UP
- 3046 turbocharged with direct injection with an engine serial number of:
- ESN: 5KX484 and above
- 5XK24000 and above
- 5XK10800 and above
- 5XK12250 and above
- 5XK15489-UP and above
- 5XK15503-UP and above
- 5XK30700-UP and above
- ESN: 5XK1-UP
- 3044C and 3044T turbocharged industrial engines with direct injection with a serial number of:
- CJS1 and above
- CYM1 and above
- 3044CT turbocharged industrial engines with direct injection with a serial number of:
- CJS1 and above
- CJS1-38908
- CJS1-70000
- CJS61913 and above
- 3064
- 3066 machine with an engine serial number prefix of 7JK or MAE
