PISTON 2053257 - Caterpillar

Caterpillar: Confidential Yellow
PARTS STOCK ACTION ONLY:1N2959 AND 0R769 WATER PUMP GROUPS ARE REPLACED BY 7W7104 AND 0R1200 WATER PUMP GROUPS - PI7150 - MAI LED US AND CANADA, COFA, TRUCK, MARINE & AGRICULTURE 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.
1N2959 AND 0R0769 WATER PUMP GROUPS ARE REPLACED BY 7W7104 AND 0R1200 WATER PUMP GROUPS, 1361, PI7150 U-57 AU-44 C-45 TT-9 TA-5 TM-5 parts stock action only Termination Date
September 30, 1985.
Problem
The water seal used in the 1N2959 and 0R0769 Water Pump Group has caused customer dissatisfaction because of its short service life. The new 7W7104 and 0R1200 Water Pump Groups have a new water seal. The new seal has a boot that makes a tighter fit with the shaft. This improved boot makes a better seal and prevents the seal from rotating on the shaft. If the seal rotates on the shaft, it can cause excessive heat and failures of the boots.
Action Required
Remove all 1N2959 and 0R0769 Water Pump Groups from parts parts stock. WARRANTY ALLOWANCES Submit one claim for all 1N2959 and 0R0769 Water Pump Groups that are returned.
Parts Disposition
Return all 1N2959 and 0R0769 Water Pump Groups to the following address. Include a core credit request and a copy of the warranty claim with all 0R0769 Water Pump Groups. U.S. And Canadian Dealers Caterpillar Tractor Co. 202 Cardinal Drive Corinth, MS 38834 CofA Dealers Caterpillar of Australia Ltd. Warranty Claims Area 1 Sharps Road Tullamarine, Vic 3043