23651 Mariner SLEEVE, WATER INLET TUBE

17Dec2018
(Revised 20Jul2020)
U-718
D-634
O-630
TA-1
Before/After
PRODUCT SUPPORT PROGRAM FOR REPLACING THE DEF INJECTOR IF REQUIRED ON CERTAIN C4.4 INDUSTRIAL ENGINES
108I 1920 7610 PS46084
Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.
This Program must be administered either before or after failure.In either case the decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS46084" as the Part Numberand "7755" as the Group Number. If administered before failure, use "56" as the Warranty Claim Description Code and "T" as the SIMS Description code.If administered after failure, use "96" as the Warranty Claim Description Code, and "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.
This Revised Service Letter replaces the 17Dec2018 (Revised 26Mar2020) Service Letter. Changes have been made to the Problem.
TERMINATION DATE
31Dec2020
PROBLEM
Certain C4.4 Industrial Engines may have a problem with the DEF injector 459-7216.
The internal seals within the DEF Injector may fail and allow DEF to leak into the injectors electrical connector housing. Once DEF enters the electrical housing and contacts the electrical pins a DEF Dosing current fault is triggered. This is usually accompanied by an external DEF leak being seen in and around the injectors electrical connector. DEF Dosing Unit/Actuator Diagnostic Trouble Codes (3361/3821) can be triggered which can lead to a system inducement.
AFFECTED PRODUCT
Model Identification Number
*******Group 1*******
C4.4 JKT00017, 20, 27-28, 77, 79, 82, 84, 131-132, 136, 139, 176, 190-191, 254, 258, 558, 613, 616, 625, 688, 693, 776, 834, 892, 895, 977, 984, 989-990, 1014, 1018, 1023-1024, 1030-1031, 1033, 1047, 1053, 1063, 1067, 1070, 1088-1089, 1135, 1137, 1230, 1267, 1527, 1656, 1660, 1729, 1735, 1737, 1759, 1801, 1818-1820, 1874, 1882, 1884, 1940, 1969, 1988, 1991, 1998, 2028, 2032, 2063, 2074, 2078, 2160-2162, 2164, 2167, 2185, 2188, 2193, 2211-2212, 2305, 2342, 2346, 2360, 2394, 2403, 2406, 2443, 2458, 2524, 2531, 2538-2539, 2544, 2563, 2567, 2570, 2573, 2647, 2687-2688, 2721, 2834-2835, 2931, 2953, 2997, 3017, 3034, 3056, 3123, 3146, 3150, 3153, 3188, 3291, 3293-3294, 3341, 3344, 3359, 3373, 3376, 3378, 3454, 3457, 3503, 3505, 3537, 3539, 3541-3542, 3561, 3710, 3757, 3763, 3766, 3846-3847, 3906, 3908, 3912, 3965, 3999, 4116, 4120, 4171, 4317-4319, 4363-4366, 4482, 4488, 4491-4492, 4495, 4591, 4593, 4595, 4622-4623, 4625, 4655, 4721-4722, 4726, 4760, 4767, 4798, 4800, 4833-4834, 4884, 4888-4889, 4891, 4974, 4979-4980, 5041-5043, 5072-5073, 5077, 5190-5191, 5208-5210, 5213, 5215-5216, 5249, 5251, 5272, 6054-6059, 6074-6078, 6199-6205, 6305-6307, 6354, 6356-6361, 6425-6430, 6447-6449, 6481, 6499-6500, 6504-6505, 6509, 6541-6544, 6626, 6763, 6821-6822, 6832-6833, 6841, 6897-6899, 6975-6978, 7017-7026, 7045, 7213-7215, 7218-7226, 7290-7291, 7330-7334, 7341-7344, 7361-7369, 7476-7482, 7489-7490, 7567-7575, 7609-7610, 7699-7703, 7779-7780, 7808-7813, 7818-7824, 7837-7839, 7841, 7860-7864, 7902-7903, 7920, 7941-7945, 7956-7958, 7969, 8091-8093, 8109-8112, 8132, 8169, 8298-8304, 8315-8316, 8366-8368, 8402, 8410-8417, 8513-8514, 8588-8594, 8623, 8667-8670, 8685-8686, 8688-8691, 8707, 8778-8782, 8840-8844, 9012-9025, 9115-9123, 9212-9215, 9256-9260, 9305-9311, 9457-9460
*******Group 2*******
C4.4 JKT06506-06507, 7216-7217, 7287-7289, 7360, 7560, 8118-8119, 8426-8427, 8501, 8595, 8910, 8946-8949, 9026, 9124, 9420-9421
PARTS NEEDED