No, that is not the factory rear bumper. It looks like you have a '93-'95 YJ Sahara, It would have came with simple rear bumperettes, should look like this...
2005 LJ Rubicon 4.0L, NSG370 6-Speed Manual, NV-241OR, Impact Orange
2004 WJ Overland 4.7L H.O. 545RFE, NV247, Bright Silver
1995 YJ S 2.5L, AX-5 5-Speed Manual, NP-231, Bright White
Sold the TJ X for a LJ Rubicon... Good Deal!