131200-0220 ZEXEL 9 411 610 021 BOSCH TAPPET 9411610021 1312000220 9812212230

When reporting the repair, use "PS90778" as the Part Number and "7777" as the Group Number. If administered before failure, use "56" as Warranty Claim Description and "T" as the SIMS Description Code. If administered after failure, use "96" as Warranty Claim Description Code and use "Z" as the SIMS Description Code.
The information supplied in this service letter may not be valid after the termination date of this program.Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
TERMINATION DATE
31Oct2018
PROBLEM
The 341-2378 Injector Wiring Harness may cause an intermittent injector signal that may cause an injector diagnostic code on certain 793F Off-Highway Trucks.
AFFECTED PRODUCT
Model Identification Number
793F SSP01079-01080, 1082-1084, 1161-1165, 1170
PARTS NEEDED
Qty
Part Number Description
16 5L4019 RING-RETAINING
16 0336034 SEAL-O-RING
16 4979351 HARNESS AS
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 11% 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
Refer to the Service Manual if/as necessary.
Replace the existing 341-2378 Injector Wiring Harness with the a 497-9351 Injector Wiring Harness. The 497-9351 Injector Wiring Harness is distinguishable from the previous harness by a blue zip tie on the harness.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-11000 hrs,
0-18 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 2.0-hour job
If there has been a previous repair, part age/hours will apply. Retain a copy of the previous repair invoice in the dealer's records for audit purposes, and specify repair date and machine hours in the "Additional Comments" section of the warranty claim.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.