Usage:
NOTE: 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.
NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI3658" as the Part Number, "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI3658" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
Completion Date
May 31, 1994Termination Date
November 30, 1994Problem
The engine connecting rod bearing cap bolts need to be replaced on certain 120G, 12G, and 140G Motor Graders, 930T and 966C Loaders, and D5E, D6D and D6E Tractors.
Affected Product
Model & Identification Number
120G 4HD1967-1975, 1977-1997, 1999, 2001-2006, 2009, 2010, 2012, 2014, 2019-2026, 2029-2063, 2065-2070, 2072-2076, 2078, 2085, 2100, 2107-2112, 2125-2128, 2131, 2132, 2135, 2139-2143, 2150, 2151
12G 3PL821-840, 842-852, 859
140G 5MD2055, 2057-2066, 2069-2073, 2075-2077, 2079, 2080, 2083-2089, 2092-2111, 2113-2126, 2128-2131, 2134-2139, 2141-2143, 2147-2148, 2151-2155, 2160-2162, 2164-2165, 2171-2178
930T 17B1316-1360, 1362-1364, 1366, 1368-1371, 1373, 1375-1386, 1388-1392, 1394-1412, 1414-1419, 1422-1428, 1430-1442, 1444, 1448-1502
966C 18B1491, 1493-1496, 1499, 1500, 1505, 1511-1520, 1528, 1529, 1541, 1542, 1544, 1548, 1549, 1554, 1564, 1565, 1575
D5E 9RG42-66, 68-71, 73, 75, 76
D6D 9FK117-142, 144, 147-160, 165, 166
D6E 2MJ1391-1421, 1423-1444, 1446-1452, 1459-1466, 1473-1486, 1495-1503, 1505, 1506, 1508, 1510, 1511; 8FJ103-118, 120-129, 134
Parts Needed
Dealers will need to order parts for this Program.
120G and 930T
- 1 - 8M0904 Gasket
- 8 - 1P9956 Bolt
- 1 - 2P8746 Gasket
- 1 - 5S6045 Gasket
- 1 - 8S1963 Gasket
- 1 - 8S8874 Lock-Nut
- 8 - 1P9956 Bolt
12G, 140G, 966C, D5E, D6D and D6E
- 1 - 0L0364 Lock
- 1 - 4M2969 Gasket
- 1 - 8M0904 Gasket
- 12 - 1P9956 Bolt
- 1 - 2P8746 Gasket
- 1 - 8S1965 Gasket
- 1 - 8S8874 Lock-Nut
- 1 - 4M2969 Gasket
Action Required
Remove the existing engine connecting rod bearing cap bolts and replace them with new 1P9956 Bolts. Also, install new gaskets and locks as needed.
NOTE: On motor graders, the engine needs to be removed from the frame to gain access to the connecting rod bearing cap bolts.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
NOTE: MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
Attach. (1-Owner Notification)
Copy Of Owner Notification For U.S. And Canadian Owners
