Executive order
D-393-2
Johnson Matthey, Inc.
Vehicle applications
No vehicle applications were preserved for this order.
Part records
| Part number | Model/specification | Modification | Remarks |
|---|---|---|---|
| 1985-1993 model-year Detroit Diesel Corporation (DDC) 6V92TA DDEC two-stroke urban bus diesel engines with power ratings of 253 and 277 horsepower | The CCT Upgrade Kit includes patented engine camshafts, CCT cylinder kits, CEM II catalytic muffler, and 0.015 offset key to retard fuel injection timing. For 1985-1987 model-year engines, the CCT Upgrade Kit also includes DDEC I to DDEC II conversions parts, fuel injectors, turbocharger, blower assembly, blower bypass valve, 40-tooth blower drive gear, and an ECM upgrade. For 1988-1990 model-year engines, the CCT Upgrade Kit also includes fuel injectors and an ECM upgrade. For all of the applicable engines, DDC's revised certification word codes listed in Attachment A must be used. |