TUBE AS 2967000 - Caterpillar

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS5529" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.
Although this Program is to be administered as described above on the Affected Product, parts should be removed from Parts Stock as soon as possible.
If a hose is replaced on one engine of a two engine powered boat, the other engine's hose may also be replaced at this time. Separate claims should be filed for the engines. Engines in dealer inventory may also have their hose replaced and the zinc rod removed prior to installation in a boat.
This Revised Service Letter replaces the December 13, 1998 Service Letter. Changes have been made to the Affected Product, Parts Needed, Service Claim Allowances, and Rework Procedure.
Termination Date
December 31, 1999Problem
8X4177 and 152-6439 Hoses on certain 3176C and 3196 Marine Engines equipped with 1347213 Fuel Cooler Gp. have been subject to collapse because of lack of rigidity. This causes overheating and failures of the raw water pump. A new 1632919/">163-2919 Hose will offer sufficient rigidity to prevent these problems.Sacrificial zinc rods in marine raw water systems decompose with time. In these engines, the zinc rod in the downstream side of the fuel cooler may break off and travel to the inlet of the raw water pump. Impeller damage to the pump could result. The "downstream only" zinc rod must be replaced with a plug.
Affected Product
Model & Identification Number
Both Problems are in these Serial Numbers
3176C (6BW1-446)
3196 (2XR1-1637)
May have one or both problems in these Serial Numbers
3176C (6BW447-453)
3196 (2XR1638-1819)
This program applies only to engines that are equipped with the 1347213 Fuel Cooler Gp.
Parts Needed
1 - 9B0887 PLUG1 - 1632919 HOSEAction Required
Parts Stock
Remove all 8X4177 and 152-6439 Hoses from Parts Stock.
Affected Product
See attached Rework Procedure.
Service Claim Allowances
- Pleasure Craft
Service Claim Allowances
- Commercial Craft
This is a 1-hour job.
Parts Stock
Submit one claim for all 8X4177 and 152-6439 Hoses removed from Parts Stock.
US and Canadian Dealers Only - When submitting a Parts Stock claim use 99Z00007 in the Product Identification Number Field.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.(1-Rework Procedure)Rework Procedure
This procedure was a topic on the Power Connection Broadcast on October 21, 1998 - LEVN4509
If a hose is replaced on one engine of a two engine powered boat, the other engine's hose may also be replaced at this time. Separate claims should be filed for the engines. Engines in dealer inventory may also have their hose replaced prior to installation in a boat, or engines at boat manufacturing facilities may be updated as well prior to customer delivery. Make certain to check for the correct plug in the fuel cooler as directed.
1. Begin by loosening the four hose clamps from the former (old) hose.2. Remove the four bolts that affix the raw water pump inlet elbow to