154188-4520 ZEXEL 9 421 616 279 BOSCH HEADLESS SCREW 9421616279 1541884520 1157236210

This Revised Service Letter replaces the 30May2018 Service Letter. Changes have been made to the Parts Needed.
TERMINATION DATE
31May2020
PROBLEM
The DEF injector can become plugged on certain 953K and 963K Track-Type Loaders. If the DEF injector becomes plugged it can lead to partial or full blockage of DEF flow.
AFFECTED PRODUCT
Model Identification Number
953K LJT00100-00211
963K LBL00100-00678
PARTS NEEDED
Qty
Part Number Description
1 4182073 GASKET AS
1 4609257 INJECTOR AS-DEF
1 5457669 SFWR GP-A1000
1 5460139 SFWR GP-A1000
1 BULK_COOLANT COOLANT See OMM
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 6% 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
DEF Injector Replacement ? Remove and Install:
Remove DEF injector and replace. Follow Disassembly and Assembly, UENR0006, for DEF Injector and Mounting - Remove and Install.
Update Engine Software:
Reflash the engine controller (ECM) with the software listed in the Parts Needed or latest available on SIS Web.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-3000 hrs,
0-36 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
3001-5000 hrs,
37-60 mo 100.0% 0.0% 0.0% 0.0% 0.0% 100.0%
This is a 1.5-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.