GE U33B

{{Short description|Diesel-electric locomotive}}

{{More citations needed|date=February 2025}}

{{Infobox locomotive

| name=GE U33B

| image=Hugh llewelyn 2906 (5961018593).jpg

| caption=Penn Central #2906 with a freight train in Pittsburgh, Pennsylvania in 1970.

| powertype=Diesel-electric

| gauge={{track gauge|ussg|allk=on}}

| builder=GE Transportation Systems

| buildmodel=U33B

| cylindercount=16

| length={{convert|60|ft|2|in|abbr=on}}

| aarwheels=B-B

| primemover=GE FDL-16{{sfn|Trzoniec|2015|page=85}}

| enginetype=V16 diesel

| poweroutput={{convert|3300|hp|abbr=on}}{{sfn|Trzoniec|2015|page=85}}

| builddate=December 1966 – March 1975

| totalproduction=137{{sfn|Trzoniec|2015|page=85}}

}}

The GE U33B is a diesel-electric locomotive that was offered by GE in 1966, featuring a 16-cylinder motor. It is {{convert|60|ft|2|in|abbr=on}} long.