Here's how to write a mechanical engineer cover letter: 1. Use the correct mechanical engineer cover letter format. Margins: one inch. Line spacing: single. 15. Font: Arial or cambria, 11 pt. Read Tips for Writing the Best Cover Letter for a Mechanical Engineer. Writing a cover letter for a mechanical engineer position involves a strategic blend of technical expertise, soft skills, company research, and compelling examples. By incorporating these tips, you will create the best cover letter for a mechanical engineer position. 1.You can use this sample cover letter for a mechanical engineer position to guide you in writing your own cover letter: Colin Barnes. 789. ColinLBarnes email.com Dear Ms. Biddles, I would like to express my interest in the position of Senior Mechanical Engineer at Sidwell Incorporated. Here is a professional example to follow for your own cover letter: Michael Goodman. 123 538-3859. mgoodmanemail.com. Dear Mr. Roberts, It is with great enthusiasm that I apply for the Mechanical Engineer position at Robotics Plus. Between my studies at East Tech University and my internship experience, I believe: Start with one of our free cover letter samples if you're not sure how to write a powerful cover letter for a mechanical engineer. You can find cover letter examples and templates for mechanical engineers of different experience levels. MEP engineer cover letter. Having applied for the position of MEP engineer at Topdown,