Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on June 18, 2003.
As of Wednesday, August 21st, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

ModelsModification
1996-2003 model-year off-road compression-ignition engines rated at or above 25 horsepower.The Unikat Combifiltersa re actively regenerated filters that require regeneration after 8-10 hours of operation or when the backpressure monitor indicates excessive pressure. This exemption applies to Unikat Combifilters used with or without Engine Control Systems' AZ Purifier, downstream of the filters. The Unikat Combifilters and the AZ Purifier can be used on engines operated using standard California diesel or ultra-low sulfur diesel.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-420U-4
  • Executive Order 420U-4 / D420U-4
  • ARB # D-420U-4
  • Executive Order No: D-420U-4
  • C.A.R.B. No. D-420U-4
  • Resolution D-420U-4
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-420U-4 PDF

D-420U-4 Document:



                                      State of California
                                  AIR RESOURCES BOARD

                                EXECUTIVE ORDER D—420U—4

                                Relating to Exemptions under
                        Sections 38390 and 38391 of the Vehicle Code

                 Engine Control Systems — A Division of Lubrizol Canada Ltd.
                           K—Type and S—Type Unikat Combifilters
                                 with or without AZ Purifier

Pursuant to the authority vested in the Air Resources Board (ARB) by Part 5, Division 26 of
the Health and Safety Code and Sections 38390, 38391, and 38395 of the Vehicle Code;
and                               e

Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the
Health and Safety Code and Executive Order G—02—003;

IT IS ORDERED AND RESOLVED: That installation of the Unikat Combifilters,
manufactured by Engine Control Systems of 165 Pony Drive, Newmarket, Ontario, Canada
L3Y 7V1, has been found not to reduce the effectiveness of the applicable engine emission
control system, and therefore, the K—type and S—type Unikat Combifilters are exempt from
the prohibitions in Sections 38390 and 38391 of the Vehicle Code for installation on 1996
through 2003 model—year off—road compression—ignition engines rated at or above 25
horsepower.

This Executive Order applies to Unikat Combifilters used with or without Engine Control
Systems‘ AZ Purifier, downstream of the filters. The Unikat Combifilters and the AZ Purifier
can be used on engines operated using standard California diesel with a maximum sulfur
content of 500 parts per million by weight (ppmw) or ultra—low sulfur diesel (ULSD) with a
maximum sulfur content of 15 ppmw. The Unikat Combifilters and AZ Purifiers exempted
under this Executive Order are identified in Attachment A.

The Unikat Combifilters are actively regenerated filters that require regeneration after 8—10
hours of operation or when the backpressure monitor indicates excessive pressure.

This Executive Order is based on emission tests conducted by Engine Control Systems with
the Unikat Combifilters and the AZ Purifier. Test data showed no adverse impact on engine
emissions. The same emissions impact is expected when the Unikat Combifilters are
installed, with or without the AZ Purifier, on any of the engines listed above.

This Executive Order is valid provided that installation instructions for the Unikat
Combifilters do not recommend tuning the engines to specifications different from those of
the engine manufacturer.

Changes made to the design or operating conditions of the Unikat Combifilters, as
exempted by the ARB, which adversely affect the performance of the engine‘s pollution
control system, shall invalidate this Executive Order.

Marketing of the Unikat Combifilters using identification other than that shown in this
Executive Order or for an application other than that listed in this Executive Order shall be
prohibited unless prior approval is obtained from the ARB.


                                                 «3.

This Executive Order shall not apply to any Unikat Combifilters ad\)ertised, offered for sale,
sold with, or installed on an off—road engine, vehicle, or equipment prior to or concurrent
with transfer to an ultimate purchaser.

This Executive Order does not constitute any opinion as to the effect the .use of the Unikat
Combifilters may have on any warranty either expressed or implied by the engine
manufacturer.

No claim of any kind, such as "Approved by the Air Resources Board," may be made with
respect to the action taken herein in any advertising or other oral or written communication.

In addition to the foregoing, the ARB reserves the right in the future to review this Executive
Order and the exemption provided herein to assure that the exempted add—on or modified
part continues to meet the standards and procedures of California Code of Regulations,
Title 13, Section 2474, et seq.

THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION,
ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE
AIR RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING
ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF ENGINE CONTROL
SYSTEMS‘ K—TYPE AND S—TYPE UNIKAT COMBIFILTERS.

Violation of any of the above conditions shall be grounds for revocation of this Executive
Order. The Executive Order may be revoked only after a ten—day written notice of intention
to revoke the Executive Order, in which period the holder of the Executive Order may
request in writing a hearing to contest the proposed revocation. If a hearing is requested, it
shall be held within ten days of receipt of the request, and the Executive Order may not be
revoked until a determination is made after a hearing that grounds for revocation exist.

Executed at El Monte, California, this     /@TH day of June 2003.




                                         Alle%yons, Chief
                                         Mobile Source Operations Division




      ENGINE CONTROL SYSTEMS — A DIVISION OF LUBRIZOL CANADA LTD.
   K—TYPE AND S—TYPE UNIKAT COMBIFILTERS WITH OR WITHOUT AZ PURIFIER
                         '      D—420U—4


                                    Attachment A



             Unikat Combifilter .    _      —>    >> AZPurifier Catalyst~— >
                Filter Model _ ..         ECS Part Number|—       Catalyst Model —
                K3, K5, K9, K10, K18,
    K—Type           DK20, DK36                                        Az25,
                                                 MBEXXX                AZ26,
                $3, S5, S9, $10, S18,                                  AZ27
    S—Type           DS20, DS36                      :
  Note:   Filter Model!                                    '
          Dual filter models are designated with a D before the model type designation,
          Le. DK20
          ECS Pgrt Number
          Pre—fix A16 designates the Purifier converter design format (no muffler)
          Catalyst Model
          AZ designates catalyst formulation.
          Numbers 25 through 27 designate catalyst size.
          For custom direct fit applications, the part number will describe the converter
          design format and application, iie. AZ Purimuffier for ABC Trucking with
          Cummins B engine.




   ENGINE CONTROL SYSTEMS — A DIVISION OF LUBRIZOL CANADA LTD.
K—TYPE AND S—TYPE UNIKAT COMBIFILTERS WITH OR WITHOUT AZ PURIFIER
                             D—420U—4



Document Created: 2005-09-01 12:39:37
Document Modified: 2005-09-01 12:39:37

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