Coffman GMC

Meet Our Staff

Management

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Mark Coffman
President
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Mike Coffman
Vice President
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Frank Coffman
Secretary/Treasurer
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Jack Hienton
General Manager
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Chris Celozzi
Light-Duty Sales Manager
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Sal Castiglia
F&I Manager
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Andrew LeMaster
Sales Professional / Internet Manager
Phone #2: (630) 605-0516
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Duane Gerdin
Heavy-Duty Sales Manager
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Jerry Gerber
Commercial Sales Manager

Sales

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Terry Coffman
Sales Representative
Phone #2: (630) 333-7508
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Alan Kornbrot
Sales Representative
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Chet Landis
Heavy-Duty Sales Representative
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Mike Lyng
Heavy-Duty Sales Representative
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Ron Swanson
Heavy-Duty Sales Representative
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John Duerer
Heavy-Duty Sales Representative
Jason Dulaney

Service

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Carl Meyer
Service Manager
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Mark Sartain
Assistant Service Manager
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Dave Jochum
Service Writer

Parts

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Rob LeMaster
Parts Department/Internet Representative
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Mike Brown
Outside Parts Sales