About Granite State Truck Center
Granite State Truck Center is a diesel-specific shop handling warranty work and Cummins-certified repairs in Littleton, New Hampshire. The operator works within a 15-mile service radius, covering owner-operators and fleet owners throughout the Upper Valley region and into nearby Vermont communities like St Johnsbury and Lyndonville. Services include engine diagnostics, rebuilds, and heavy-duty truck maintenance for those running diesel equipment in this freight corridor between Interstate 91 and the Northeast Kingdom. Call (603) 444-4180 for diesel repair and warranty service.
Gallery
Our Services
Warranty Work
Cummins Certified
Diesel Specialist
Customer Reviews
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Verified Customer
Google Review
On the road in our RV and discovered we were leaking. A quick Google search led us to Granite. Pulled in about 4:30 to see if they could diagnose the problem and advise us. They did and within the hour had us fixed and on our way. ...
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Verified Customer
Google Review
Response from the owner
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Verified Customer
Google Review
Did ya know GSTC can service your RV, large & small? So psyched they can service our Class B Van and the Cummins Onan generator that's on-board. Phenominal service too!!