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 |
Manufacturer | Product Name/Technology Type | Applicability | Fuel Type | Reductions (%) | |
---|---|---|---|---|---|
PM | NOx | ||||
Catalytic Exhaust Products Ltd. | Dieselytic SXS-SC DPF | Stationary prime and emergency standby generators and pumps with Tier 1, Tier 2, or Tier 3 certified off-road engines ≤ 0.2 g/bhp-hr diesel PM | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Caterpillar, Inc. | DPF | Specific 1996-2008 model years, off-road | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Cleaire Lonestar | Lean NOx Catalyst and DPF | Conditionally verified for 1996 through 2009 model year, rubber-tired off-road vehicles | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | 40 |
CleanAIR Systems PERMIT ![]() |
DPF | Stationary emergency and prime generators | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
DCL International Inc. ![]() |
DPF | Conditionally verified for certain 1996-2008 model year nonroad engines | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
DCL International Inc. ![]() |
DPF | Stationary prime and emergency standby generators; Tier 1, 2, or 3 off-road engines certified to ≤ 0.15 g/bhp-hr PM | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Donaldson ![]() |
Donaldson / Series 6000 DOC + Crankcase Filter | Off-road port equipment | 15 ppm sulfur or biodiesel blend | 25 (Level 1 Plus) | n/a |
Engine Control Systems ![]() |
Engine Control System Purifilter (High Load) / DPF | Conditional verification for off-road for specific engines, model years 1996-2008 | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Engine Control Systems ![]() |
Engine Control System Combifilter / DPF | 2007 or older off-road | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Engine Control Systems ![]() |
Engine Control System AZ Purimuffler/Purifier / DOC + Alt fuel | 1996-2002 off-road | PuriNOx- emulsified diesel fuel | 50 (Level 2 Plus) | 20 |
Engine Control Systems ![]() |
Engine Control System AZ Purifier & Purifmuffler / DOC | 1996-2002 off-road | 15 ppm sulfur or biodiesel blend | 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 | 15 ppm sulfur or biodiesel blend | 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 diesel engines through 2006 MY and most off-road through 2008 MY | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Johnson Matthey ![]() |
Johnson Matthey CRT / DPF | Stationary emergency/standby generators; conditionally verified for stationary prime generators | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Miratech Corporation ![]() |
Miratech Corporation Combikat (DPF) | Stationary emergency and prime generators with a PM emission rate ≤ 0.2 g/bhp-hr | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Proventia | Proventia FTF TM / FTF | Most Thermo King trailer TRUs using 1985 through 2002 model year engines | 15 ppm sulfur or biodiesel blend | 50 (Level 2 Plus) | n/a |
Rypos Inc. ![]() |
Rypos, Inc. HDPF/C™ (Hybrid DPF) | 1996-2007 stationary emergency standby generators and pumps with a PM emission rate ≤ 0.2 g/bhp-hr and certified to Tier 1, Tier 2, or Tier 3 off-road diesel engine standards | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Rypos Inc. ![]() |
Rypos ADPF (DPF) | 1996-2008 stationary engines (certified to Tier 1, 2, or 3 off-road PM emission level), no EGR, DOC or pre-existing DPF | 15 ppm sulfur or biodiesel blend | 50 (Level 2 Plus) | n/a |
Rypos Inc. ![]() |
Rypos, Inc. DPF/LETRU™ | Most trailer TRUs using 2002 and older model year engines | 15 ppm sulfur | 50 (Level 2 Plus) | n/a |
Sud-Chemie, Inc. ![]() |
EnviCat-DPF™ diesel particulate filter (DPF) | Stationary prime and emergency standby generators and pumps | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Teleflex | Teleflex Clear Sky DPF | With the Comfort Pro APU, powered by select Kubota Z482 diesel engines with model years between 2005 and 2008 | 15 ppm sulfur or biodiesel blend | 85 (Level 3 Plus) | n/a |
Thermo King | Thermo King eDPF | 2006-2008 Thermo King auxiliary power units | 15 ppm sulfur | 85 (Level 3 Plus) | n/a |
Thermo King | Thermo King PDPF™ / FTF | 1985-2002 transport refrigeration unit engines. Read the Executive Order for detailed engine matching requirements | 15 ppm sulfur | 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 | 15 ppm sulfur or biodiesel blend | 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.