Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on April 8, 1994.
As of Thursday, December 26th, 2024 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:

CARB_D-182-13

(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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