**Principal Mechanical Engineers earn $110,000 annually on average**, or $53 per hour, which is 50% more than the national average for all working Americans. Our data indicates that the best paid Principal Mechanical Engineers work for Bechtel at $151,000 annually while the lowest paid Principal Mechanical Engineers work for GE earning approximately $73,000 each year.

+$4K (3%) more than **national average Principal Mechanical Engineer salary ($110K)**

+$38K (40%) more than **average Raytheon salary ($76K)**

+$9K (7%) more than **average Raytheon Principal Mechanical Engineer salary ($114K)**

-$33K (33%) less than **average Raytheon Principal Mechanical Engineer salary ($114K)**

-$9K (8%) less than **average Raytheon Principal Mechanical Engineer salary ($114K)**

+$47K (35%) more than **national average Principal Mechanical Engineer salary ($110K)**

+$25K (20%) more than **national average Principal Mechanical Engineer salary ($110K)**

+$11K (9%) more than **national average Principal Mechanical Engineer salary ($110K)**

+$60K (65%) more than **average Cummins salary ($61K)**

-$8K (7%) less than **national average Principal Mechanical Engineer salary ($110K)**

-$65K (83%) less than **national average Principal Mechanical Engineer salary ($110K)**

+$31K (32%) more than **average BAE Systems salary ($80K)**

-$6K (5%) less than **average BAE Systems Principal Mechanical Engineer salary ($111K)**

+$4K (3%) more than **national average Principal Mechanical Engineer salary ($110K)**

+$36K (37%) more than **average Fluor salary ($78K)**

-$18K (17%) less than **average Fluor Principal Mechanical Engineer salary ($114K)**

+$37K (27%) more than **average Fluor Principal Mechanical Engineer salary ($114K)**

+$17K (13%) more than **average Fluor Principal Mechanical Engineer salary ($114K)**

+$10K (8%) more than **national average Principal Mechanical Engineer salary ($110K)**

+$34K (33%) more than **average Ambitech Engineering salary ($86K)**

-$9K (7%) less than **average Ambitech Engineering Principal Mechanical Engineer salary ($120K)**

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