950048 Volvo.Penta Cross recessed screw

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PARTS STOCK ACTION ONLY - NEW CYLINDER HEAD GASKETS ON 3406 ENGINES - PI7211 - MAILED US, CANADA, COFA, BRAZIL, CFEL, COSA TRU CK TEPS, MARINE TEPS AND AGRICULTURAL 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-132 TT-8 A-94 TM-3 AU-91 TA-3 B-18 E-58 O-82 PARTS STOCK ACTION NEEDED 1124 PI7211 Termination Date
September 30, 1989
Problem
The former 2W7983 and 9Y7786 Cylinder Head Gaskets are subject to failure due to exhaust gas leakage. The new 7E3240 Cylinder Head Gasket should provide better sealing capability for both exhaust gas and fluids with its improved design.
Action Required
Remove all 2W7983 and 9Y7786 Cylinder Head Gaskets from parts stock and from gasket kits in parts stock. Replace the gaskets with 7E3240 Cylinder Head Gaskets. The following is a list of gasket kits that contain a 2W7983 or 9Y7786 Cylinder Head Gasket. 8C4456 6V6403 8C5704 6V9218 5P8053 6V9722 5P8321 6V9723 5P8366 6V9724 5P8431 6V9890 8T6677 6V9891 8T8891 7X2632 7X7657
Service Claim Allowances
Submit one claim for all 2W7983 and 9Y7786 Cylinder Head Gaskets removed from parts stock.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.