CAT Skid Steer DPF Delete Kit

Stop DPF regens. Stop derates. Get your power back.

Stop DPF regens. Stop derates. Get your power back.

Plug-and-play installation. No tuning. No dealer visits.
Plug it in, bolt the straight pipe and forget about losing power mid-job.

CAT SKID STEER DPF PROBLEMS AND HOW TO FIX THEM

PLUG-AND-PLAY DPF DELETE KIT FOR CAT SKID STEER

COMMON CAT SKID STEERS DPF RELATED PROBLEMS
THAT YOU GET RID OF WITH CAT DPF DELETE KIT

COMMON CAT SKID STEERS DPF RELATED PROBLEMS
THAT YOU GET RID OF WITH CAT DPF DELETE KIT

• Regeneration Failure (Code E1239-3 or similar): The machine cannot reach the required exhaust temperature or engine load needed to burn off trapped soot automatically. 
• Frequent Regens / Derate (Code 523602-0): Excessive soot loading often caused by prolonged low-idle operation, faulty differential pressure sensors, or minor exhaust/boost leaks.
• High Ash Accumulation (Code E997): The filter is physically full of non-combustible ash and needs professional removal and physical cleaning or replacement.
• Cat code E1239-3 (Incomplete DPF Regen) – The machine is locked in low power because the automated soot burn-off failed to finish.
• Cat code 523602-0 (High Frequency of Regen) – The machine tries to regenerate too often, usually due to a faulty sensor or heavily plugged filter.
• Cat skid steer DPF Regen Severity Level 3 – The highest critical warning level before the machine shuts down or requires a dealer service tool.
• Cat DPF ash service 3000 hours – Searching for physical filter removal and pneumatic/thermal cleaning procedures once ash limits are reached.
• Cat skid steer DPF differential pressure sensor replacement – Troubleshooting bad sensor voltage readings or blocked sensor tubes.
• SPN 3251 FMI 16 Cat code – High DPF restriction pressure indicating a severely clogged or heavily loaded soot filter.
• Cat skid steer DPF clogging from excessive idling – Low exhaust temperatures from long low-idle periods causing rapid soot buildup.
• Engine oil dilution from aborted regens – Unburnt diesel fuel washing into the crankcase oil during incomplete DPF cycles.
• Cat exhaust gas temperature sensor codes – Failed pre-filter or post-filter temperature sensors blocking the computer from starting a regen.
• How to force a stationary regen on Cat skid steer – Step-by-step instructions to trigger a manual burn-off via the advanced display screen.
• Cat skid steer derate after running out of DEF – Machine stuck in a power-reduction loop even after refilling the empty DEF tank.
• Cat DEF quality sensor failure – Electronic problems inside the tank header reading “poor fluid quality” even with fresh DEF fluid.
• Frozen DEF tank problems in winter – Faulty tank heaters or line heaters throwing codes on cold mornings before the fluid thaws.
• Cat DEF injector clogging and crystallization – White crust buildup on the nozzle tip blocking the fluid spray into the exhaust pipe.
• Cat DEF pump low pressure failure – Electronic or physical malfunction of the supply pump failing to pressurize the system.
• Cat skid steer DEF injector harness leak – DEF fluid wicking up the wiring loom and corroding the engine control module (ECM) connectors.
• SPN 3361-5 Cat code (DEF Dosing Unit) – Open circuit or low current detected at the chemical metering module.
• Low SCR efficiency code SPN 4364 FMI 18 – The catalyst is not reducing NOx emissions effectively due to bad fluid or bad sensor readings.
• How to change Cat DEF pump filter – Location and instructions for replacing the small internal inline grid filter to fix low flow codes.
• Cat skid steer “E1239-3” code troubleshooting – Conditions for active regen of the DPF have not been met. Heavy plugged DPF filter.
• Cat 259D force manual regen without scanner – Unfortunately, it is not possible to force regen without the service tool.
• “523602-0” Cat code frequent regeneration – “Aftertreatment Regeneration Frequency High” results from a full DPF, bad sensors, or fuel delivery issues.
• Cat 289D DPF severity level 3 override – At this severe level 3 ECM disables regen to prevent extreme temperatures.
• Cat C3.3B engine DPF ash service interval – With CAT DPF Delete there is no filter, so no ash is building up.
• Cat skid steer differential pressure sensor voltage specs – System operates on a 5V DC with outputs range 0.5V to 4.5V.
• “SPN 3251 FMI 16” Caterpillar – Diesel Particulate Filter (DPF) differential pressure is moderately high which means ash, or soot is building up.
• Cat 299D high soot load low idle problems – Resolve this by avoiding prolonged idling and performing a stationary regeneration.
• Cat C3.8 engine oil dilution DPF regeneration – Extra fuel from active regenerations slips past the piston rings.
• Cat exhaust gas temperature sensor codes – Check wiring, connectors, test resistance, or look for root causes in the DPF.
• Cat skid steer derate loop after running out of DEF – Air in the lines, or crystalized residue.
• Cat 299D3 DEF quality sensor failure bypass – Our CAT Delete does it for you.
• Cat skid steer frozen DEF tank heater codes – Verify Fluid Condition, if not frozen check fuses and relays and inspect the harness.
• How to clean clogged DEF injector Cat skid steer – Disconnect the fluid line, remove the bolts, and soak the nozzle in warm water, or DEF crystal cleaner.
• Cat DEF pump low pressure priming procedure – command an electronic prime sequence via service software.
• “Cat D3” DEF injector harness wicking ECM damage – Instead of replacing the affected harness fix the root, and delete problem forever.
• “SPN 3361 FMI 5” Cat code dosing unit – This disables DEF injection into the exhaust, which can trigger an emissions derate.
• “SPN 4364 FMI 18” low SCR efficiency Caterpillar – Computer detects that SCR is not cleaning the nitrogen oxides well enought.
• Cat skid steer DEF pump inline filter replacement location – integrated pump assembly are located in the front or mid-chassis compartment under the cab
• Cat emission delete software tuning – Why flash the computer if you can fully safe emulate it?