Random / Multiple Cylinder Misfire
The BOBCAT-P0300 (Bobcat) diesel fault code means: Random / Multiple Cylinder Misfire. This is a serious severity code.
- Keep driving?
- Limited driving only
- DIY difficulty
- intermediate
- Estimated cost
- $400-$2,500
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Common Symptoms
- Rough running
- Vibration at idle
- Smoke
Probable Causes (Ranked by Likelihood)
- Fuel injector copper seat washer failure Likely
- Low compression on one cylinder Possible
- Stale diesel in seasonal equipment Likely
Frequently Asked Questions
What is Bobcat code P0300?
Bobcat P0300: Random / Multiple Cylinder Misfire. This code is reported on Bobcat equipment running the described engine family.
Can I keep working with Bobcat code P0300?
Limited operation only -- finish the current task then shut down for repair.
How much does Bobcat P0300 cost to fix?
Estimated repair cost: $400-$2,500. 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
Step-by-Step Diagnostic Procedure
Run cylinder cutout test in Bobcat Service Analyzer.
Inspect injector return-flow balance.
Pull injectors to inspect copper washers/spray tips.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0300 as a generic OBD-II code)
P0300 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
Commonly Affected Vehicles
- 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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