152111-2920 ZEXEL 9 441 610 051 BOSCH TAPPET 9441610051 1521112920 1157540020

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.
This Revised Service Letter replaces the 18Jul2019 (Revised 23Jul2019) Service Letter. Changes have been made to the Affected Product.
TERMINATION DATE
31Jul2020
PROBLEM
The existing injector can improperly fuel under certain conditions on certain C175-16 Generator Sets. If the existing injector trim files are not updated it can/will cause engine instability at low loads.
AFFECTED PRODUCT
Model Identification Number
C175-16 WYC01003, 2006-2020
PARTS NEEDED
Qty
Part Number Description
16 INJECTOR_TRIM_FILE INJECTOR TRIM FILE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 32% 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
1. Download a Product Status Report (PSRPT) from the engine ECM.
2. Obtain the Injector Serial Numbers from the PSRPT.
3. Download the latest Injector Trim Files for each injector through SIS web.
4. Flash the updated Injector Trim Files to the ECM.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-6000 hrs,
0-48 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
This is a 2.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.