146685-1110 ZEXEL 9 461 618 557 BOSCH POTENTCIOMETER 9461618557 1466851110

PROBLEM
The diesel oxidation catalysts needs to be reworked or replaced on certain 3512E Petroleum Engines. The existing diesel oxidation catalysts can crack on the top panel and cause an exhaust leak.
AFFECTED PRODUCT
Model Identification Number
3512E NG400100-00127
NG500100-00130
PARTS NEEDED
Qty
Part Number Description
2 3031968 GASKET
4 3460335 CLAMP-BAND
4 5365400 PLATE (Before Failure-See Action Required)
2 5492046 MODULE AR-EXH (After Failure-See Action Required)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 45% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
There is currently a limited supply of parts available for this program. The 549-2046 Part Name is frozen and allocation will be manually prioritized until sufficient quantities are available. Please work with your Customer Service Representative for parts availability.
Refer to the Safety Section in the Operation and Maintenance Manual prior to conducting any service work.
Inspect the existing diesel oxidation catalysts for cracks.
If no cracks are present, refer to Special Instruction, M0116373 for welding rails onto the top of the diesel oxidation catalysts.
If cracks are present, the diesel oxidation catalysts will need to be replaced.
OWNER NOTIFICATION
Owners in the following countries will receive the attached Owner Notification:
US
Canada
SERVICE CLAIM ALLOWANCES
Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
100% 100% 0% 0% 0% 0%
This is a 6.0-hour job
6.0 hours for after failure for replacing DOC's.
10.0 Hours for before failure for R&I of DOC's and welding.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
EXAMPLE COPY OF OWNER NOTIFICATION
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999
PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING OR REPLACING THE DIESEL OXIDATION CATALYSTS
MODELS INVOLVED - CERTAIN 3512E PETROLEUM ENGINES
Dear Cat Product Owner:
The Diesel Oxidation Catalysts need to be reworked or replaced on the products listed below. The existing Diesel Oxidation Catalysts can crack on the top panel and cause an exhaust leak. You will not be charged for the service performed.
Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.
If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 12Mar2020 when scheduling this service.
We regret the inconvenience this may cause you, and urge you to have this service performed as soon as possible to prevent unscheduled downtime.
Caterpillar Inc.
Identification #(s)
Attached to 12Mar2020 Service Letter