Per the Ingersoll Rand web site this kit fits these models: 231 A, C and 232TGSL (Thundergun). They do not need lubricant as a maintenance item. I have never encouraged the external greasing of sealed impact wrenches even though this is by IR design to be done.regularly.

Brand: Ingersoll Rand
Non-Domestic Product: No
Type: Air tool Parts
Warranty: No
Custom Bundle: No
Manufacturer Part Number: 231 TK3, 231C, 232TGSL
Bundle Listing: Yes
Country/Region of Manufacture: United States
Modified Item: No