SEAT BELT GP 1561148 - Caterpillar

3176B (9WK),
3406 (91U),
3406B (4TB),
3408B (1LG, 99U),
3412 (60M) Marine EnginesDescription of Change: A new water cooled exhaust elbow is available for use on these engines. The new elbow is made from polished stainless steel and incorporates a black hard wrap insulation covering the 90 degree bend. The outlet of the new elbow is 203 mm (8 in) in diameter. The new elbow includes a mounting pad (A) for use with a customer supplied surface temperature alarm sensor. The new elbow also includes an integral support flange (C) for use with a customer installed support bracket. See Illustration 1.
Illustration 1. Location of new 128-4114 Water Cooled Exhaust Elbow Components. Mounting pad (A). Cooling water inlet flange (B). Integral support flange (C).Adaptable To: When used together, the new components identified in Illustration 2 and chart are direct replacements for the former 5N-2815 Exhaust Elbow (water cooled) with the following modifications: 1. The raw water supply hose to the exhaust elbow must be re-routed to the underside of the water cooled canister on the elbow and connected to flange (B).2. A customer installed support bracket is recommended. The bracket is usually a stainless rod supporting the weight of the elbow and exhaust pipes. One end of this rod is usually attached to the marine gear at a convenient location. The other end of the rod is attached to the support flange (C) on the elbow.
Illustration 2. Identification of new components required to replace the former 5N-2815 Exhaust Elbow (water cooled).