Approval Details

Valid E.O.


This Executive Order approved the specified parts on on January 31, 2001.
As of Wednesday, October 16th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
16851-98A, 16854-98A, and 16976-1340 Performance Cylinder Heads 1984-1999 Harley-Davidson motorcycles equipped with a 1338 cc Carb/FI engine

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-338-32
  • Executive Order 338-32 / D338-32
  • ARB # D-338-32
  • Executive Order No: D-338-32
  • C.A.R.B. No. D-338-32
  • Resolution D-338-32
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-338-32 PDF

D-338-32 Document:

                                                                              (Page 1 of 2)

                                        State of California
                                    AIR RESOURCES BOARD

                                   EXECUTIVE ORDER D—338—32
                          Relating to Exemptions Under Section 27156
                                       of the Vehicle Code

                                       CYLINDER HEADS

Pursuant to the authority vested in the Air Resources Board by Section 27156 of the
Vehicle Code; and

Pursuant to the authority vested in the undersigned by Section 39515 and Section 39516 of
the Health and Safety Code and Executive Order G—45—9;        '

IT IS ORDERED AND RESOLVED: That the installation of the 1340 Performance Cylinder
Heads, Lightning Cylinder Heads, and XLS Cylinder Heads manufactured and marketed by
the Harley—Davidson Motor Company, 3700 W. Juneau Avenue, P.O. Box 653, Milwaukee,
Wisconsin 53201 has been found not to reduce the effectiveness of the applicable vehicle
pollution control system and, therefore, is exempt from the prohibitions of Section 27156 of
the Vehicle Code for the following Harley—Davidson motorcycles.

Device                 Part Numbers                    Model—Year      Engine Displacement

1340 Performance       16851—98A, 16854—98A,             1984—1999     1338 cc    Carb/Fl
Cylinder Heads         and 16976—99A

S1 Lightning           16457—96, 16458—96,               1991—1999     1200 cc Carbureted
Cylinder Heads         16459—96, and 16460—96

XLS Cylinder Heads 16457—96B, 16458—96B,                 1991—2001     1200 cce     Carbureted
                   16459—96B, and 16460—96B

This Executive Order is valid provided that the installation instructions for the cylinder heads
will not recommend tuning the vehicle to specifications different from those of the vehicle

This Executive Order is granted based on the following‘submitted emissions test data:

                          1996 Harley—Davidson 1338 cc               1994 Harley—Davidson 1200 cc
                 Carbureted Mode!      Fuel Injected Model                Carbureted Model
                         (gm/km)         (gm/km)                               (gm/km)

                  HC         CO         HC     CO                              HC     CO
Standards         1.0       12.0        0.9     12.0         Baseline          1.30   6.94
device w/ dfs     0.87       6.5        0.7      5.5         S$1 Cyl. Heads    1.30    7.83

Test results showed that tailpipe emissions with the modified cylinder heads ins_talled were
at or below the 1996 Harley—Davidson‘s applicable emission standard, and within the
allowable limits for comparative emissions testing on the 1994 Harley—Davidson.

HARLEY—DAVIDSON                                            EXECUTIVE ORDER D—338—32
CYLINDER HEADS                                             (Page 2 of 2)

This Executive Order shall not apply to any Harley—Davidson Motor Company Performance
cylinder heads advertised, offered for sale, sold with, or installed on, a motor vehicle prior to
or concurrent with transfer to an ultimate purchaser.

Changes made to the design or operating conditions of the cylinder heads, as exempt by
the Air Resources Board, which adversely affect the performance of the vehicle‘s pollution
control system shall invalidate this Executive Order.

Marketing of the cylinder heads using any identification other than that shown in this:
Executive Order or marketing of the cylinder heads for an application. other than those listed
in this Executive Order shall be prohibited unless prior approval is obtained from the Air
Resources Board. Exemption of the cylinder heads shall not be construed as exemption to
sell, offer for sale, or advertise any component of the kit as an individual device.

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

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 Title 13, California Code of
Regulations, Section 2222, et seq.


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.

Violation of any of the above conditions shall be grounds for revocation of this order. The
order may be revoked only after a ten—day written notice of intention to revoke the order, in
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 revocation exist.

Executive Order D—338—24, dated October 1999, is superseded and of no further force and

Executed at El Monte, California, this 3/ M{—day of January 2001.

                                    R. B. Summerfield, Chief
                                    Mobile Source Operations Division

Document Created: 2005-09-01 12:14:07
Document Modified: 2005-09-01 12:14:07

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