Backed by the Best

When you're #1, quality has to come first. That's why we back each MBE 4000 with a standard, comprehensive warranty as hard-working as the engine itself. It's part of our dedication to providing the best product support available in the industry.

Plus, you can even toughen up your warranty with special extended coverage options available through your Dealer or Distributor. And because Detroit Diesel engines hold their resale value, your warranty is transferable to future owners—no extra charge.