Fleet Maintenance

Cancellation Policy

To proceed with any of the listed services Heavy Duty Emissions System Overhaul,Fleet Maintenance and/or Emission System Diagnostic & Repair a full and accurate assessment is needed, please be sure to add the System Assessment & Diagnostic to your cart as well at checkout. Please note: the cost of the system assessment and diagnostic assessment will be credited toward your final bill if you move forward with the recommended service. This helps us ensure the best results and a smooth process from start to finish. If you need help adding the service or have any questions, feel free to reach out—we're happy to assist. info@defsystemservices.com

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