BOBCAT-P0304 serious Bobcat ›

Cylinder #4 Misfire Detected

The BOBCAT-P0304 (Bobcat) diesel fault code means: Cylinder #4 Misfire Detected. This is a serious severity code.

My Garage →
Keep driving?
Limited driving only
DIY difficulty
intermediate
Estimated cost
$400-$1,800

What Are the Symptoms of BOBCAT-P0304?

  • Misfire count elevated on cylinder 4
  • Rough idle, visible smoke

What Causes BOBCAT-P0304? (Most Likely First)

  • Bad injector cylinder 4 Likely
  • Low compression on that cylinder Possible
  • Valve clearance out of spec (500 hr check) Possible

Can I Still Drive with BOBCAT-P0304?

Limited driving only. BOBCAT-P0304 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 P0304?

Bobcat P0304: Cylinder #4 Misfire Detected. This code is reported on Bobcat equipment running the described engine family.

Can I keep working with Bobcat code P0304?

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

How much does Bobcat P0304 cost to fix?

Estimated repair cost: $400-$1,800. 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-P0304?

  1. Swap injector from another cylinder to confirm if misfire follows.

  2. Wet/dry compression test on cylinder 4.

  3. Check valve lash to Kubota spec.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J2012Diagnostic Trouble Code Definitions (defines P0304 as a generic OBD-II code)

P0304 on Other Platforms

The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:

Gas / Automotive (OBD-II) Generic OBD-II definition for P0304 Duramax serious Cylinder 4 Misfire Detected Power Stroke serious Cylinder 4 Misfire Detected

Which Vehicles Commonly Get BOBCAT-P0304?

  • 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)

Explore More

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

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