Tiernan's Service Center in Granger, IA 50109 is a full-service fleet preventative maintenance and fleet repair center. We provide comprehensive services for your domestic or import vehicle to keep it running at full power. For questions, contact us at 515-577-5643 or send us an email. Our experts will help determine what needs to be done.

Our basic maintenance services include:

Customer Required Inspections
In addition to DOT inspections, Tiernan's Service Center handles customer-required inspections. For all your customer-required inspection needs, contact or visit Tiernan's Service Center in Granger, IA 50109.

DOT Inspections
State Department of Transportation's (DOT) require inspections for safety assessments. The Department of Transportation relies on appointed and licensed auto repair shops to conduct vehicle-only inspections. Tiernan's Service Center is certified to conduct these inspections. For your DOT inspection needs, contact us at 515-577-5643 or visit Tiernan's Service Center today.

Oil, Lube, and Filter
Engine oil, or motor oil, is the oil used for lubricating the various parts of your truck's internal combustion engine. The oil reduces wear, lessens friction, cools the engine parts, and inhibits corrosion. One of the cheapest and most effective ways to prolong the life of your truck's engine is to have its oil and oil filters changed regularly. Oil changes keep engines healthy. With regular oil changes, your engine will run stronger for longer. Contact Tiernan's Service Center in Granger, IA 50109 today for all your oil change needs. Our experts will change your truck's oil and oil filters if needed.

Discover More About Fleet Repair Services At Tiernan's Service Center in Granger

Heavy Duty Vehicle Repairs
Trailer Work
Computer Diagnostics