63100-ZW6-000ZA Honda COVER, ENGINE *NH282MU* (Honda Code 8029951). (OYSTER SILVER METALLIC-U)

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PARTS STOCK ACTION ONLY - NEW CYLINDER HEAD GASKETS USED ON 3408 AND 3412 ENGINES - PI7228 - MAILED US AND CANADA, CACO, COF A, BRAZIL, CFEL, COSA, MARINE TEPS
  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.
U-21 A-15 AU-14 B-7 E-14 O-19 TM-3 PARTS STOCK action only 1124 PI7228 Termination Date
May 31, 1990
Problem
The former 2W7984 and 2W7985 Cylinder Head Gaskets are subject to failure due to exhaust gas leakage. The new 7E7308 and 7E7312 Cylinder Head Gaskets should provide better sealing capability for both exhaust gas and fluids with its improved design.
Action Required
Remove all 2W7984 and 2W7985 Cylinder Head Gaskets from parts stock and from gasket kits in parts stock. Replace 2W7984 Cylinder Head Gaskets with 7E7308 Cylinder Head Gaskets. Replace all 2W7985 Cylinder Head Gaskets with 7E7312 Cylinder Head Gaskets. The following is a list of gasket kits that contain 2W7984 Cylinder Head Gaskets. 8C3429 8T1632 8T4853 8T6481 8T1644 8C3430 8T4854 8T6486 8T1645 5P9839 8T4855 8T6487 8T2452 5P9840 8T4871 8T7005 8T2453 5P9843 8T4872 8T7006 8T2498 5P9844 8T6475 8T9315 8T2499 8T1631 8T6476 6V0202 8T3359 8T3360 8T6480 6V0204 6V0206 6V4737 6V5915 9X2104 6V0208 6V4738 6V5937 6V0214 6V4739 6V5938 6V0216 6V4740 6V7469 6V1783 6V5906 6V7470 6V1784 6V5907 6V9923 6V1785 6V5908 6V9924 6V1786 6V5914 9X2103 The following is a list of gasket kits that contain 2W7985 Cylinder Head Gaskets. 8C3463 8T2460 6V2535 6V5931 8C3464 8T2461 6V2536 6V5932 8C6551 8T3369 6V2537 6V6416 8C6552 8T3370 6V2538 6V9917 8C7363 6V1161 6V4534 6V9918 8C7364 6V1162 6V4535 9X5997 5P9630 6V1169 6V5430 9X5998 5P9631 6V1170 6V5431 9X6528 8T1625 6V1588 6V5929 9X6529 8T1627 6V1589 6V5930
Service Claim Allowances
Submit one claim for all cylinder head gaskets removed from parts stock.
Parts Disposition
All parts removed (with the exception of cores used for Caterpillar Remanufactured parts) should be rendered useless and scrapped immediately upon completion of the repair.