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Verified Nonroad Engine Technologies List
Key Topics: Technology
This table shows only diesel retrofit technologies approved for nonroad engines.
See the contact page for more information on these manufacturers.
On this page
- EPA Verified Nonroad Engine Retrofit Technologies
- California Air Resources Board (CARB) Verified Nonroad Engine Retrofit Technologies
Main list
For a more widely applicable list read EPA verified diesel retrofit technologies.
| Manufacturer | Product Name/Technology Type | Applicability | Fuel Type | Reductions (%) | |||
|---|---|---|---|---|---|---|---|
| PM | NOx | ||||||
Caterpillar, Inc.  |
Diesel Particulate Filter | Nonroad, 4-cycle, non-EGR equipped, model year 1996-2005, turbocharged engines with power ratings between 174.2 to 301.5 Horsepower | 15 ppm sulfur diesel | 89 | n/a | ||
| Caterpillar, Inc. |
Caterpillar Emissions Upgrade Group | Select Caterpillar 3306 diesel engines for nonroad applications with model years from 1988 to 1995 with mechanical direct fuel injection, turbocharged with power ratings in 75 < Kilowatts < 130 (100 < Horsepower < 174). | 500 ppm sulfur diesel | 22 | 37 | ||
| Lubrizol |
Lubrizol PuriNOx / Water Emulsion (Alternative) Fuel | Heavy Duty, 2 & 4 Cycle engines | Emulsified fuel with 2D having 500 ppm sulfur | 16.8 to 23.3 | 17 to 20.2 | ||
| Paceco Corporation |
Mitsui Engineering and Shipbuilding diesel particulate filter (MES-DPF). | Pre-1996 nonroad, 4-cycle, heavy-duty diesel engines in the 225 - 450 kW power range in electrical generation applications | 50 ppm sulfur diesel | 39 | n/a | ||
| Manufacturer | Product Name/Technology Type | Applicability | Fuel Type | Reductions (%) | |||
|---|---|---|---|---|---|---|---|
| PM | NOx | ||||||
| Caterpillar, Inc. |
DPF | Conditionally verified for 1996-2008 model years; off-road, rubber tired. | CARB diesel or 15 ppm sulfur diesel | 85 (Level 3) | n/a | ||
| CleanAIR Systems PERMIT |
CleanAIR Systems / DPF | Certain 1996-2003 nonroad engines used in stationary emergency generators. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 85 (Level 3 Plus) | n/a | ||
| DCL International Inc. |
DPF | Conditionally verified for 1996-2008 model years; off-road, rubber tired. | CARB diesel or 15 ppm sulfur diesel | 85 (Level 3) | n/a | ||
| Donaldson |
Donaldson / Series 6000 DOC + Crankcase Filter | Certain 1996-2003 nonroad engines used in yard tractors, large lift trucks, top picks, side picks, and gantry cranes. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 25 (Level 1 Plus) | n/a | ||
| EGR Technologies LLC/CleanAIR Systems |
EGR / DPF | Conditional verification for stationary prime and emergency standby generator sets and pumps < 600 hp and < 0.4 g/bhp-hr PM. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 85 (Level 3) | n/a | ||
| Engine Control Systems |
Engine Control Systems Combifilter / Diesel Particulate Filter (DPF) | Most 2007 or older off-road. | CARB diesel or 15 ppm sulfur diesel | 85 (Level 3 Plus) | n/a | ||
| Engine Control Systems |
Engine Control Systems AZ Purimuffler and Purifier / Diesel Oxidation Catalyst (DOC) + PuriNOx | Certain 1996-2002 nonroad port, railway yard, and other intermodal + freight handling operation equipment. | Emulsified fuel | 50 (Level 2 Plus) | 20 | ||
| Engine Control Systems |
Engine Control Systems AZ Purifier and Purimuffler / DOC | Certain 1996-2002 nonroad port, railway yard, and other intermodal + freight handling operation equipment. | 15 ppm sulfur diesel | 25 (Level 1 Plus) | n/a | ||
| Extengine Transport Systems |
Extengine - Advanced Diesel Emission Control System (ADEC) / DOC + Selective Catalytic Reduction (SCR) | Certain 1991-1995 Cummins 5.9-liter, 150 to 200 HP nonroad engines used in excavators, dozers, loaders, and utility tractor rigs. | CARB diesel or 15 ppm sulfur diesel | 25 (Level 1 Plus) | 80 | ||
| HUSS Umwelttechnik GmbH |
HUSS Umwelttechnik FS-MK diesel particulate filter (DPF) with diesel fuel burner for regeneration | Most on-road and off-road diesel engines through the 2006 model year except those already equipped with either DOC, DPF or exhaust gas recirculation system. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 85 (Level 3 Plus) | n/a | ||
| Johnson Matthey |
CARB diesel or 15 ppm sulfur diesel, biodiesel | Stationary emergency and prime generators. Conditionally verified for stationary pumps. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 85 (Level 3) | n/a | ||
| Miratech Corporation |
Miratech Corporation Combikat (DPF) | Stationary emergency and prime generators with a PM emission rate of 0.2 g/bhp-hr or less. | 500 ppm limit (California onroad or offroad fuel) | 85 (Level 3 Plus) | n/a | ||
| Paceco Corporation |
DPF | Pre-1996 model year or Tier 1, 2, or 3 certified off-road diesel engines on rubber-tired gantry cranes. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 25 (Level 1) | n/a | ||
| Rypos Inc. |
Rypos ADPF (DPF) | 1996-2006 stationary engines in applications such as land and marine-based generator sets. | CARB diesel or 15 ppm sulfur diesel | 50 (Level 2 Plus) | n/a | ||
| Rypos Inc. |
Rypos, Inc. HDPF/C™ | 1996-2007 stationary emergency standby generators and pumps with a PM emission rate of 0.2 g/bhp-hr or less and certified to Tier 1, Tier 2, or Tier 3 off-road diesel engine standards. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 85 (Level 3 Plus) | n/a | ||
| Sud-Chemie, Inc. |
EnviCat-DPF™ diesel particulate filter (DPF) | Stationary prime and emergency power generation or pumping having PM emission levels less than or equal to 0.2 g/bhp-hr. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 85 (Level 3 Plus) | n/a | ||
| Thermo King PDPF™ |
FTF | 1985-2002 transport refrigeration unit engines. Read Executive Order for detailed engine matching requirements. | 15 ppm sulfur diesel | 50 (Level 2 Plus) | n/a | ||
| Vycon REGEN System |
Energy Storage System | Pre-1996 model year or Tier 1, 2, or 3 certified off-road diesel engines on rubber-tired gantry cranes. | CARB diesel or 15 ppm sulfur diesel, biodiesel | 25 (Level 1 Plus) | 30 | ||
CARB Verified Technologies are listed and explained at www.arb.ca.gov/diesel/verdev/verdev.htm.
Memorandum of Agreement (MOA) with California Air Resources Board (ARB)
EPA's Diesel Retrofit Program signed a Memorandum of Agreement (MOA) (PDF, 3 pages, 204KB, About PDF files) (June 2004) with the State of California Air Resources Board (ARB) for the Coordination and Reciprocity in Diesel Retrofit Device Verification. The MOA establishes reciprocity in verifications of hardware or device-based retrofits, and further reinforces EPA's and ARB's commitment to cooperate on the evaluation of retrofit technologies. This agreement commits EPA and ARB to work toward accepting particulate matter (PM) and oxides of nitrogen (NOx) verification levels assigned by the other's verification programs. Additionally, as retrofit manufacturers initiate and conduct in-use testing, EPA and ARB agreed to coordinate this testing so data generated may satisfy the requirements of each program. This MOA is intended to expedite the verification and introduction of innovative emission reduction technologies. Additionally, this MOA should reduce the effort needed for retrofit technology manufacturers to complete verification.