Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on April 8, 1994.
As of Thursday, August 22nd, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModificationRemarks
>>>> see Rems>>>> see Rems>>>> see Remsnon OBD II catalytic converter. See list of exempted catalytic converters.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-182-13
  • Executive Order 182-13 / D182-13
  • ARB # D-182-13
  • Executive Order No: D-182-13
  • C.A.R.B. No. D-182-13
  • Resolution D-182-13
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-182-13 PDF

D-182-13 Document:



                                                                  (Page 1 of 2)

                                          State of California
Laeks




                                          AIR RESOURCES   BOARD


                                        EXECUTIVE ORDER D—182—13
                               Relating to Exemptions Under Section 27156
                                          of the Vehicle Code


                                           WALKER MANUFACTURING
                              "THREE—WAY PLUS OXIDATION CATALYTIC CONVERTER"

         WHEREAS, Vehicle Code Section 27156 and Title 13 California Code of
         Regulations (hereafter "CCR") Section 2222(h), authorize the California Air
         Resources Board (ARB) and its Executive Officer to exempt new aftermarket
         catalytic converters from the prohibitions in Vehicle Code Sections 27156
         and 38391.

         WHEREAS, Walker Manufacturing of 3901 Willis Road, Grass Lake, Michigan
         49240, has applied to the ARB for exemption from the prohibitions in Vehicle
         Code Sections 27156 and 38391 for their new aftermarket three—way plus
         oxidation converter (TWC + OC).  The new catalytic converter is intended for
         use as OC,    TWC,   and TWC + OC on light—duty and medium—duty vehicles as shown
         below:

         Converter Use          Uni. Assembly                           Max. Eng.   Max. Veh.
         TWC + OC,TWC,OC        Part Numbers    Body Part Numbers       Size        Test Wt.
                                15180,15181     615181,615181,          5. 9L       4,500 lbs.
                                15182,15183     615182,615183
a**"*~




         wWHEREAS,   pursuant to the authority vested in the Executive Officer by Health
         and Safety Code Section 39515 and in the Chief, Mobile Source Division by
         Health and Safety Code Section 39516 and Executive Order G—45—5,            the ARB
         finds that the above aftermarket catalytic converter complies with the
         California Vehicle Code Sections 27156 and 38391,          and Title 13,   California
         Code of Regulations, Section 2222(h).        Emission performance of the catalytic
         converter was based on durability mileage accumulation of 25,000 miles using
         the AMA durability driving schedule (Reference Appendix IV, Title 40, Part
         86, Code of Federal Regulations (June 28, 1977)).

         IT IS HEREBY RESOLVED that the above catalytic converter is exempt from the
         prohibitions in Vehicle Code Sections 27156 and 38391 for installation on
         applicable vehicles subject to the following conditions:

            1.   No changes are permitted to the catalytic converter as described in
                 the application for exemption.  Any changes to the catalytic
                 converter or any of its components, applicable model year, or other |
                 factors addressed in this order must be evaluated and approved by the
                 ARB prior to marketing in California.

            2.   Marketing of the converter using identifications other than those
                 shown in the exemption application or marketing of the catalytic
                 converter for vehicle application other than the one listed in this
                 order shall be prohibited unless prior approval is obtained from the
                 ARB.  Exemption of this product shall not be construed as an
                 exemption to sell, offer for sale, or advertise any components of the
                 catalytic converter as individual devices.


WALKER MANUFACTURING                                  EXECUTIVE ORDER D—182—13
"THREE—WAY PLUS OXIDATION CATALYTIC                   (Page 2 of 2)
COoNVERTER"




   3.   Any oral or written references to this Executive Order or its content
        by Walker Manufacturing, its principals, agents, employees,
        distributors,   dealers,   or other representatives must include the
        disclaimer that the Executive Order or the exemption it provides is
        not an endorsement or approval of any emissions reduction claims for
        the catalytic converter and is only a finding that the catalytic
        converter is exempt from the prohibitions of Vehicle Code Sections
        27156 and 38391.

   4.   Upon installation, the catalytic converter must carry a
        manufacturer‘s warranty for 25,000 miles on the substrates and 50,000
        miles or five years on the shell.

Violation of any of the above conditions shall be grounds for revocation of
this order.  The order may be revoked only after ten day written notice of
intention to revoke it, during which period the holder of the 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 order may not be revoked until a determination is made,
after the hearing, that grounds for revocaii:a_fxist.

Executed at El Monte,    California, this         day of April,   1994.




                                      Mobile Source Division


                                   State of California
                                  AIR RESOURCES BOARD




            EVALUATION OF WALKER MANUFACTURING NEW AFTERMARKET THREE—WAY PLUS
            OXIDATION CATALYTIC CONVERTER FOR EXEMPTION FROM THE PROHIBITIONS
               IN VEHICLE CODE SECTION 27156, AND TITLE 13, CALIFORNIA CODE
                              OF RECULATIONS, SECTION 2222(h)
    4»--\




                                      April, 1994
mmorine,


            EVALUATION OF WALKER MANUFACTURING NEW AFTERMARKET THREE—WAY PLUS
556.




            OXIDATION CATALYTIC CONVERTER FOR EXEMPTION FROM THE PROHIBITIONS
               IN VEHICLE CODE SECTION 27156, AND TITLE 13, CALIFORNIA CODE
                              OF REGULATIONS, SECTION 2222(h)
m




                                            by

                                  Mobile Source Division

                                   9528 Telstar Avenue
                                 El Monte, CA  91731—2990




       (This report has been reviewed by the staff of the California Air Resources
       Board and approved for publication. Approval does not signify that the      >
       contents necessarily reflect the views and policies of the Air Resources
       Board, nor does mention of trade names or commercial products constitute
       endorsement or recommendation for use.)


                                   SUMMARY




        Walker Manufacturing (Walker) of 3901 Willis Road, Grass Lake,

Michigan 49240, has applied for an exemption of their new aftermarket three—

way plus oxidation catalytic converter (TWC + OC)) from the prohibitions in

Vehicle Code Sections 27156 and 38391 in accordance with California

regulations on new aftermarket catalytic converters.     The new converter will

be used on light—duty and medium—duty vehicles powered by a 5.9L or smaller

engine, and maximum equivalent test weight (ETW) of 4,500 lbs. for TWC + OC,

TWC, and OC applications.

        Emissions data submitted by the applicant show that the catalytic

 converter meets the requirements of Vehicle Code Section 27156 and Title 13,

California Code of Regulations, Section 2222(h)   for the stated applications.

. Based on the above, the staff recommends that the exemption be granted as

requested and that Executive Order D—182—13 be issued.


                                       _arrsstmnnneans

        SUMMARY


        conTENTS                            1i

        I.         INTRODUCTION

        II.        coNCLUSION

        III.      RECOMMENDATION

        IV.       DEVICE DESCRIPTION

        v.        DBEVICE EVALUATION
,e-.\


IV.        DEVICE DESCRIPTION

           Walker‘s new aftermarket TWC + OC contains two substrates.                The

front reducing substrate is coated with palladium and rhodium in the ratio

of 5:1, the rear oxidizing substrate is coated with palladium only.                   Air

tube is provided between the substrates for the TWC + OC application.                      Each

substrate measures 3.15 inches along the minor axis,               4.75 inches along the

major axis,    2.12 inches long,       and has a volume of 27.0 cubic inches.          The

substrates are enclosed in a stainless steel shell.                The substrates are

wrapped with compressed intumescent mat to prevent vibration and exhaust

gases from by-passiné the catalyst.            A heat shield of aluminized steel is

welded to the converter shell to protect the vehicle underbody from heat.

The catalytic converter is sold as a unit with installation instructions and

kits as shown in Walker‘s application catalog.                It is also sold with a

warranty for 25,000 miles on the substrates and five years or 50,000 miles

on the container or shell.

v.         DEVICE EVALUATION

        Walker submitted data from testing conducted by Automotive Testing

and Development Services,       Inc.    (ATDS)},   Ontario,   California.     The two test

converters were aged respectively on 1976 and 1979 Chrysler Cordoba powered

by a 5.9L engine.     The test vehicles haye equivalent test weight (ETW) of

4,500 lbs.     Emissions tests were conducted on the following vehicles:


Application      Emission Test Vehicle             Engine Size      ETW
TWC + 0C         1992 Dodge D250 Truck             5. 9L           4,500 lbs.
TWC              1994 Dodge B35O0 VAN              5 .9L           4,500 1lbs.
oC               1976 Chrysler Cordoba             5.9L            4,500 1lbs.


Upon conclusion of testing at ATDS, the Air Resources Board (ARB) conducted

confirmatory tests with the two aged catalysts at Haagen—Smit Laboratory, El

Monte, California,    for the TWC + OC and TWC applications.                The converter

NOx conversion efficiency for the TWC application was 59.7 percent, the

required minimum conversion efficiency is 60 percent.                Due to the marginal


 failure on the NOx efficiency, the applicant was allowed to conduct one

 cold—start CVS—75 at ATDS.        The retest was observed by a staff of ARB.

 Results from the retest were then averaged with the first test results from

 ATDS.    The test results and conversion efficiencies for the converter are

vshown below:



                               ATDS, Ontario, California


                                             +
                Simulator    Conmverter l1     Converter 2   _Avg Eff.
 HC (g/mi)       2.159        0. 606            0.585        72.9%
 cCO (g/mi)     36.203        9 .362            8 .230       77.3%
 NOx(g/mi)       2.272        1.454             1. 394       56.5%


                                Test                         _Test
                Simulator    Converter 1_      Converter 2               Avg Eff.
 HC (g/mi)      10.106        2.648             2.987       3.430         70.6
 CO (g/mi)      84.509       17.424            20.131      19.180         77.6%
 Nox(qg/mi)      3.450        1.339             1. 332      1.235         62.3%

                                                OC
  HC (g/mi)      7.541        1.233             1. 328                     83.0%
. CO (g/mi)      33.419       6.112             7.944                      79.0%

                            Haagen—Smit Laboratory,      El Monte

                                             TWC_ + OC
                Simulator    Converter 1       Converter 2    Avqg. Eff.
 HC (g/mi)       2.121        0.592            0.515          73.9%
 co (g/mi)      38.345        9.908            6.600          78 .5%
 NOx(qg/mi)      3.001        1. 340           1.414          54.1%


                                               TWC
 HC (g/mi)      13.706        3.635            3. 560         73.8%
 Cco (g/mi)     81.831       25.083           19.268          72.9%
 NoOox(g/mi)     2. 743       1.125            1.086          59.7%



 The exemption of the new Walker catalytic converter for TWC application is

 based on the combined three test results from ATDS meeting the required

 minimum NOx conversion efficiency.            Staff attributes the marginal NOx

 conversion efficiency‘failure on the confirmatory testing to test—to—test

 variability.



Document Created: 2005-09-01 12:43:53
Document Modified: 2005-09-01 12:43:53

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