Auto Service: We offer a full range of automotive services including brakes, shocks and struts, batteries, flush and fill, alignment, rotations, tire balancing, oil changes, and more! Be sure to visit our coupon section. We always have ways to save money while keeping your car on the road. Merrimack Auto Center, LLC offers 6 months same as cash. Authorized Generac Dealer & Service Center Did you know that Merrimack Auto Center does more than just tires and auto service? We are also a certified retailer and repair facility for Generac Generators. For more than 40 years, Generac Generators have earned the reputation of being an affordable source of power. Here at Merrimack Auto, we sell and repair residential, portable and standby generators. We keep the necessities like lighting and air conditioning up and running even when there has been a power outage. For more information, give us a call! Tires: Look to Merrimack Auto Center, LLC for major brand tires such as Bridgestone, Firestone, Goodyear, Dunlop, Kelly, Yokohama, Continental, General Tire, Michelin, Cooper and Mastercraft at great prices! Merrimack Auto Center, LLC has the options. This ensures that you will end up with the tire that best suits your needs...not just what happens to be in stock! Customer Comments: “Great Place. I have been going here my entire life to have issues looked at. They always have a great price and do great work.” - Google User “These guys are honest, inexpensive, and pay attention to detail. Very professional and trustworthy, will be taking my car there from now on.” - Google User “I've been taking my truck here for the last 4 years....Service is always excellent.” - Google User