DPF Regeneration Duration
The KUBOTA-P2458 (Kubota) diesel fault code means: DPF Regeneration Duration. This is a serious severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- intermediate
- Estimated cost
- $0-$300 service regen, $300-$800 EGT sensor
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Common Symptoms
- Regen runs too long
- Incomplete regen
Probable Causes (Ranked by Likelihood)
- Short-duty cycle (mowing/loader) prevents DPF temp from reaching soot-burn Very Likely
- Failed EGT sensor target Possible
Step-by-Step Diagnostic Procedure
Perform parked (forced) regen in Diagmaster.
Confirm DPF inlet temp reaches 600C during active regen.
Frequently Asked Questions
What is Kubota code P2458?
Kubota P2458 means: DPF Regeneration Duration. Serious code -- address promptly to avoid inducement / further damage.
Can I keep using my Kubota with P2458?
Serious fault -- you can move the machine to a shop but don't run it under load. Use Kubota Diagmaster software (dealer tool) for full diagnostics.
How much does P2458 cost to fix on a Kubota?
Repair cost range: $0-$300 service regen, $300-$800 EGT sensor. Compact-tractor labor is typically $110-$150/hr in 2026.
P2458 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: