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Services - SN Diesel

For over 40 years, SN Diesel has been at the forefront of the diesel engine and transmission servicing industry in Canada. The pioneer company of Tokmakjian Group, SN Diesel is built on a traditional philosophy of principle and integrity melded with an unwavering standard of excellence. Over the years, SN Diesel has established a trusted reputation amongst customers and manufacturers for this honest policy and uncompromising work ethic, marking it as one of Canada’s top engine servicing entities.

Whether through rebuilding or repairing, SN Diesel is the go-to choice for southern and central Ontario fleet operators who require quality workmanship at competitive prices. An over 65,000 sq. ft. facility – the largest of its kind in Canada – with 24 service bays caters to all servicing needs, and will ensure your equipment is road-ready in a timely manner so your business can continue to operate with minimal delay.

Our certified technicians are fully trained and are provided with regular updated instruction on any new products…
-Tokmakjian Group

While headquartered in Concord, Ont., SN Diesel regularly services fleets for major operators, including Metrolinx (formerly GO Transit), as well as municipal transit properties for Barrie, Durham Region, York Region, Grand River, Mississauga, Brampton, and even the TTC. SN Diesel also services emergency response vehicles for Toronto, Richmond Hill and Vaughan Fire departments.

SN Diesel employs over 70 people, including 40 licensed, factory-trained technicians who are provided with regular updated instruction on any new products or procedures to ensure superior diagnostic skill and servicing. Utilizing state-of-the-art equipment, our carefully selected technicians with superior diagnostic skills and hands-on industry experience are equipped and prepared for any situation. You can rest assured that even the most precarious problem will be solved. SN Diesel is the one-stop-shop for your diesel fleet’s entire repair needs.


TEL. 905.738.7830
FAX. 905.669.2958