CYLINDER GP-COUPLER 1783713 - Caterpillar

All 3500 Commercial Engines With Dry Slip Joint Type Exhaust ManifoldsDry slip joint type exhaust manifold groups are not designed to be "gas tight". Under normal operating conditions the exhaust manifold can allow some exhaust gasses to escape. The new 130-5274 Sleeve and 127-8269 Seal are available for installation on the dry slip joint type exhaust manifold groups on the above engines. The new components will help reduce exhaust gas leakage at the manifold joints. These new components are not intended to make the exhaust manifold "gas tight".
The new seal and sleeve should only be installed on exhaust manifolds that have not been damaged or distorted by high exhaust temperatures. Before installing the new seal and sleeve be sure the engine maximum inlet to turbocharger temperature is not being exceeded due to operation or installation related problems. The new 130-5274 Sleeve and 127-8269 Seal are adaptable to all 3500 Engines with dry slip joint type exhaust manifolds. Two new 130-5274 Sleeves and one new 127-8269 Seal are required for each exhaust manifold section.