0379798 JOHNSON PROPELLER NUT & KEY ASSY.

26Sep2007
U-487
TT-34
Before/After
PRODUCT SUPPORT PROGRAM FOR REPLACING EXHAUST ROCKER ARMS ON CERTAIN C15 TRUCK ENGINES
1123 1921 PS42524
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 "PS42524" 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.
TERMINATION DATE
30Sep2008
PROBLEM
The existing exhaust rockers can fail at the first thread of the adjusting screw on some C15 engines.
AFFECTED PRODUCT
Model Identification Number
*******Group 1*******
C15 MXS00558, 565, 587, 875, 1039, 1081, 1195, 1197-1198, 1279, 1752, 1999, 2097, 2503, 2533, 2586, 2684, 2780, 2956, 3025-3026, 3401, 3574, 3576, 3632, 3679, 3841, 3896, 4060, 4071, 4290, 4340, 4419-4420, 4677, 5025, 5220, 5374, 5553, 5560-5561, 5705, 5951, 5971, 6083, 6158, 6241, 6265, 6267, 6348, 6452, 6454, 6460, 6478, 6628, 6695, 6781, 6811-6812, 6814-6815, 6817-6819, 6821, 6837, 6980, 6982-6984, 7149, 7151, 7154-7155, 7157, 7174, 7320, 7349-7350, 7352, 7360, 7373, 7855, 8050, 8709, 9097, 9155-9156, 9161, 9376, 9426, 10023, 10469, 10507, 10736, 11335, 11497, 11536, 11581, 11624, 13277, 13570, 13586, 13588, 13613, 14237, 14763, 14904, 14997-14999, 15143, 15435, 15518, 15550, 16034-16035, 16272, 16671-16672, 16682, 16798, 16930, 17118, 17134, 17142, 17312, 17327, 17335, 17405, 17426, 17429, 17504, 17508, 17640, 17671, 17702, 17704, 17707, 17854, 17927, 17935-17936, 18327, 18348, 18351-18352, 18357, 18488, 19814, 19869, 19872, 19915, 20112, 20161, 20163, 20559, 20570, 20783, 20787, 20798, 21083, 21170, 21314, 21356, 21468, 21690, 21917-21918, 21920, 22263, 22629, 22841, 23015, 23119, 23297, 23523-23524, 23560, 23757-23758, 23794, 23948, 24310, 24388, 24646, 24670, 24977, 25113, 25352, 25674, 25723, 25741, 25761, 25834, 26175, 26228, 26263, 26273, 26563, 26697, 26701, 26725, 26812, 26827, 26834, 26925, 26982, 27008, 27047, 27388, 27542, 27622, 27754-27755, 27798, 27818, 27831-27832, 27867, 27884, 27902, 28005, 28008, 28089, 28260, 28533, 28761-28763, 28766, 28926, 29203, 29621, 29708, 31065, 31272, 31398, 31428, 31570, 31706, 31713, 31730, 31833, 32135, 32437, 33011-33012, 33182, 33468, 33514, 33596, 33598, 33601, 33846, 33937, 34053, 34239, 34614, 34636, 34664, 34774, 34823, 34858, 35234, 35260, 35474, 35562, 35608, 35817, 36180, 36556, 36935, 37180, 37200, 37469, 37488, 37722, 37935, 38229, 38415, 38736, 38937, 39097, 39202, 39217, 39232, 39408, 39499, 39545, 40042, 40057, 40206, 40367, 40658, 40729, 41600, 41774, 42798, 42821, 42938, 43254, 43872, 43954, 44283, 44346, 44364, 44390, 44543, 44686, 45242, 45432, 45438, 45488, 46215, 46454, 46558, 46574, 46807, 47342, 47350, 47371, 47591, 47612, 47796, 48733, 48783, 48789, 49083, 49089, 49168, 49238, 49340, 49342, 49640, 49665, 49852, 50067, 50382, 50431, 50613, 50747, 51014, 51162, 51339, 51389, 51391, 51608, 51747, 51798, 51851, 51900, 52012, 52130, 52236, 52474, 52645, 52766, 53021, 53734, 54049, 54384, 54421, 54582, 54707, 54980, 55159, 55198-55199, 55201-55202, 55410, 55663, 55686-55687, 55829, 55963, 55965, 55969, 56180, 56236, 56500, 56517, 56823, 56828, 56831-56832, 57028-57029, 57087-57088, 57102, 57633, 58093, 58096, 58117, 58197, 58200, 58206, 58448, 58745, 59046, 59315, 59320, 59367, 59586, 59623, 59900, 60071, 60167, 60327, 60627, 60755-60756, 61015, 61028, 61039, 61088, 61241, 61498, 61606, 61674, 61677, 61715-61716, 62116, 62203, 62336, 62492, 62506, 62576, 62818, 62916, 62936, 62944, 62949, 62975, 63069, 63104, 63169, 63349, 63622, 63765, 63850, 64157, 64212, 64284, 64289, 64337, 64353, 64460, 64523, 64539, 64636, 64944, 65106, 65241, 65342, 65422, 65567, 65781, 65966, 66073, 66118, 66221, 66224, 66294, 66331, 66425, 66494, 66497, 66648, 66780, 67038, 67301, 67309, 67334, 67518, 67808, 67860, 67994, 68005, 68388, 68444, 68818, 68925, 68958, 69198, 69563, 69602, 71155, 71454, 71820, 73156, 73159, 73638, 73710, 73736, 74178, 74202, 74275, 74288, 74350, 74495, 74556, 74581, 74620, 74851, 74965, 75092, 75195, 75351, 75377, 75587, 75917, 76050, 76975, 77358, 77762, 78155, 78700, 79418, 79569, 79587, 80100, 80209, 80386, 81173, 81241, 81433, 81534, 81607, 81664, 81716, 81750, 81963, 82380, 82383, 82742, 82863, 83078, 83187, 83247, 83293, 83346, 83393, 83401, 83452, 83458, 83667, 83681, 83877, 83879, 84353, 84534, 84600
*******Group 2*******
C15 MXS85102, 85194, 85297, 85358, 85424, 85435, 85684, 85840, 85886, 86069, 86077, 86145, 86877, 87225, 87280, 87489, 87555, 87611, 88020, 88050, 88826, 88834, 88903, 89075, 89205, 89618, 90391, 90637, 90730, 91108, 91315, 91567, 91885, 91888, 92354, 92982, 93303, 93885, 94114, 94182, 94537, 94540, 94573, 94800, 95045, 95325, 95371, 95446, 95566, 95588, 96030, 97103, 97107, 97113, 97115, 97117, 97829, 98374, 98511, 98754
NXS00417, 512, 576, 789, 948, 1191, 1277, 1554, 1923, 1950, 3397, 3416, 3704, 4191, 4450, 5089, 5098, 5901, 5947, 6348-6349, 6369, 6374, 6444, 6454, 6608, 7146, 7349, 7464, 7639, 8033