EGR DPF Components for Industrial & Diesel Engines
Sensei stocks EGR valves, coolers, differential pressure sensors, and DPF-related components for Yanmar and Kubota Tier 4 diesel engines. Construction, agriculture, marine, generator if you're running a modern Yanmar or Kubota with emissions controls, this is the parts section you need.
What Is an EGR DPF?
EGR is Exhaust Gas Recirculation. A portion of exhaust gas gets routed back into the intake, which drops combustion temperatures and cuts NOx output. The DPF (Diesel Particulate Filter) sits further downstream and traps soot particles before they exit through the tailpipe. Neither system is optional on Tier 4 Final (US) or Stage V (EU) certified engines. They came stock. They wear out. They need parts. The two systems are separate components that get grouped together because they fail in similar conditions and because shops often inspect both at the same time. EGR handles the gas side. DPF handles the particulate side. That's the full picture.
How the EGR DPF Works in Engines?
The EGR circuit opens a valve under partial-load conditions and pulls exhaust gas through a cooler usually a coolant-to-exhaust heat exchanger bolted near the intake. Temperature sensors and differential pressure sensors monitor flow rate and cooler efficiency continuously. When the ECU sees values outside spec, it logs a fault and in most cases pulls the engine into reduced-power mode before anything burns. On the DPF side, soot builds up in a ceramic monolith until backpressure hits a set threshold. The ECU then triggers regeneration either passive (the engine naturally gets hot enough to burn it off) or active (extra fuel injection raises exhaust temp to force the burn). If the regen cycle doesn't complete, the DPF needs service. The three failures we see most on Yanmar and Kubota Tier 4 engines: carbon buildup locking the EGR valve, coolant leaking internally through the EGR cooler, and DPF pressure sensor drift giving false regen signals. The valve and sensor are straightforward part replacements. A failed cooler takes more time but doesn't usually mean DPF replacement.
EGR DPF Brands & Compatibility
The Sensei EGR and DPF catalog covers Yanmar and Kubota engines across all four main sectors: construction equipment, agricultural machinery, marine applications, and generator sets.
Yanmar EGR DPF Components
The most-serviced Tier 4 Yanmar models in our catalog are the 4TNV98CT, 4TNV106T, and 3TNV88C. These show up in mini excavators, compact wheel loaders, telehandlers, and diesel generator sets from multiple OEM manufacturers. We stock EGR valve assemblies, cooler units, differential pressure sensors, and temperature sensor kits all with OEM reference numbers. For Yanmar marine engines in Tier III or EPA Tier 4 jurisdictions: emissions components on several marine models are engine-serial-number specific. Confirm the serial range before ordering. Kubota coverage includes V3800, V2607, and D1803 Tier 4 Final engines. These run in skid steers, compact tractors, and generator packages. Note that Kubota revised its EGR cooler design when Tier 4 Final came in model year matters here, not just the engine code.
Kubota EGR DPF Components
The Kubota Tier 4 Final engines we see most in the EGR catalog are the V3800, V2607, and D1803. These run in skid steers, compact tractors, utility vehicles, and generator packages from Bobcat, Kubota, and several OEM integrators. One thing worth knowing before you order: Kubota revised its EGR cooler design when Tier 4 Final regulations came in. The pre-Tier 4 and Tier 4 Final coolers are not interchangeable on several models, even when the engine code looks the same. Model year and engine serial number both matter here. EGR valve assemblies, cooler units, differential pressure sensors, and temperature sensor kits for Kubota Tier 4 engines are stocked with OEM cross-reference numbers. If you're unsure which cooler generation applies to your machine, contact us with the engine serial number before ordering.
OEM & Aftermarket EGR DPF Components with Global Support
Parts in this catalog are listed with OEM cross-reference numbers. Aftermarket components are manufactured to OEM dimensional specs. If you need a cross-reference check or have a question about sensor compatibility on a specific engine serial range, contact us directly. Our team covers English, German, Spanish, Italian, Arabic, Russian, Chinese and many more languages. Volume buyers such as distributors and service shops can access EGR and DPF components through the Sensei dealer program, which includes real-time pricing and stock data across the full Yanmar and Kubota catalog.
