FASTENER GP-CYLINDER HEAD 2P6544 - Caterpillar

Caterpillar: Confidential Yellow
PRIORITY - PARTS STOCK ACTION NEEDED - OIL FILTER BYPASS VALVE NEEDS TO BE CHANGED ON CERTAIN 3606, 3608, 3612 & 3616 ENGINES - M AILED US, CANADA, CFEL, LIMITED CACO, COFA, COSA
  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-198 A-95.1 AU-124.1 E-85 O-126.1 PRIORITY 1306 PI3359 Termination Date
December 31, 1989
Problem
The oil filter bypass valve may be forced open during cold start-up on certain 3606, 3608, 3612, and 3616 Engines due to the viscosity of the oil. New oil filter housings, which do not contain a bypass valve, need to be installed to prevent contaminated oil from reaching the clean side of the oil filter and the lubrication system. Former 7W2469 Housings - Oil Filter need to be removed from dealer parts stock.
Affected Product
Model Identification Number 3606 8RB1 - 314 3608 6MC1 - 254 3612 9RC1 - 20 3616 1PD1 - 20
Parts Needed
Dealers will need to order parts for this Program. 2 - 7C7871 Housing 2 - 6V3349 Seal 4 - 3P0654 Seal - O-Ring
Action Required
Parts Stock Remove all 7W2469 Housings from dealer parts stock. Affected Product Remove the existing 7W2469 Housings (Oil Filter) and install new 7C7871 Housings.
Owner Notification
U.S. and Canadian owners will receive the attached Owner Notification.
Service Claim Allowances
Affected Product Caterpillar Dealer Suggested Customer Suggested Parts Labor Hrs. Parts Labor Hrs. Parts Labor Hrs. (C/L) (Sell) (C/L) (Sell) 100% 3