Aftermarket Warranty

  • Three (3)-Year, Unlimited Miles Warranty
  • This Limited Warranty Policy for Diesel Products does not apply to products supplied by Mitsubishi Electric Automotive America, Inc. to heavy and medium duty truck manufacturers for installation as original equipment or service replacement parts. The vehicle/equipment manufacturer's warranty governs exclusively in those cases.
  • Diamond Gard Part Numbers are warranted against failure for any mechanical reason or defects in material or workmanship
  • The Diamond Gard Warranty will reimburse the purchaser for the replacement cost of our product and labor, at standard shop rates, if installed at an Authorized Dealer
  • Diamond Gard Warranty will pay the freight for parts returned for inspection
  • See Claim Process Page to Submit a Claim