75385 Mariner BOLT, THRU-PLATE TO END CAP

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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 0 0 0 0 This is a 3-hour job. Parts Stock Submit one claim for all 7W2469 Housings removed from dealer parts stock.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling. 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 XYZ Corporation 3240 Arrow Drive Anywhere, YZ 99999 PRIORITY - Oil Filter Bypass Valve Needs To Be Changed On Certain 3606, 3608, 3612, And 3616 Engines MODELS INVOLVED - 3606, 3608, 3612, And 3616 Engines Dear Caterpillar Product Owner: The oil filter bypass valve may be forced open during cold start-up on the products listed below. 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. The repair will be done at no cost to you. Contact your local Caterpillar dealer immediately and schedule a time to have this service performed. The repair time for this service is approximately three hours. We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime. Caterpillar Identification #(s) Attached to December 11, 1988 Service Letter