BOBCAT-M0307 serious Bobcat ›

Bobcat Engine Derate Active - Aftertreatment Inducement

The BOBCAT-M0307 (Bobcat) diesel fault code means: Bobcat Engine Derate Active - Aftertreatment Inducement. This is a serious severity code.

Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.

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Keep driving?
Limited driving only
DIY difficulty
intermediate
Estimated cost
Depends on root cause

What Are the Symptoms of BOBCAT-M0307?

  • Power / RPM limit active
  • Amber engine + regen lamps

What Causes BOBCAT-M0307? (Most Likely First)

  • Ignored prior DPF regen request Very Likely
  • DEF system fault escalated to derate Likely
  • Emissions sensor fault not cleared Possible

Can I Still Drive with BOBCAT-M0307?

Limited driving only. BOBCAT-M0307 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.

Frequently Asked Questions

What is Bobcat code M0307?

Bobcat M0307: Bobcat Engine Derate Active - Aftertreatment Inducement. This code is reported on Bobcat equipment running the described engine family.

Can I keep working with Bobcat code M0307?

Limited operation only -- finish the current task then shut down for repair.

How much does Bobcat M0307 cost to fix?

Estimated repair cost: Depends on root cause. Off-road diesel shop labor runs $125-$175/hr in 2026. Dealer diagnostic software (Bobcat Service Analyzer) is usually required.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose BOBCAT-M0307?

  1. Use Service Analyzer to identify the underlying SPN/FMI triggering derate.

  2. Run parked regen to satisfy DPF inducement.

  3. Check DEF quality and NOx sensor feedback.

Which Vehicles Commonly Get BOBCAT-M0307?

  • Bobcat S650 skid steer loader (Kubota V3800)
  • Bobcat S740 / S750 / S770 / S850 skid steer loaders (Kubota V3800)
  • Bobcat T650 / T750 / T770 / T870 compact track loaders (Kubota V3800)
  • Bobcat E50 / E55 / E60 / E85 mini excavators (Kubota V3800)
  • Bobcat UW56 utility vehicle (Kubota V3800)

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More Bobcat codes → Diesel home All diesel codes Heavy-duty Guides

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