KIT-DT GASKET 3459112 - Caterpillar

Engine Commercial G3500 FamilyEngine Commercial Electronic G3500 FamilyEngine Generator Set G3500 FamilyEngine Marine G3500 FamilyEngine Commercial 3500B and 3500CEngine Commercial Electronic 3500B and 3500CEngine Generator Set 3500B and 3500CEngine Marine 3500B and 3500CEngine Commercial 3500 SeriesEngine Commercial Electronic 3500 SeriesEngine Generator Set 3500 SeriesEngine Marine 3500 SeriesEngine Commercial 3500 SeriesEngine Commercial Electronic 3500 SeriesEngine Generator Set 3500 SeriesEngine Marine 3500 SeriesMachine Engines 3500B and 3500C High DisplacementIntroduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
Service parts incorrectly substituted the 124-1854 Bolt for the 7N-1961 Bolt. The 7N-1961 Bolt uses a higher strength material, and can be substituted for the 124-1854 Bolt, but the 124-1854 Bolt is NOT a suitable substitute for the 7N-1961 Bolt.Solution
Illustration 1 g06126025
7N-1961 Bolt
Illustration 2 g06126020
124-1854 Bolt
A freeze has been issued on the 124-1854 Bolt to prevent issuing this bolt to 3500 engine applications. The 7N-1961 Bolt and the 124-1854 Bolt have the same dimensions. The 7N-1961 Bolts can be identified by an F-C marked on the head, refer to Illustration 1. The 124-1854 Bolts will not have the F-C marking on the head, refer to Illustration 2.If a 124-1854 Bolt has been installed in a G3500 or 3500 Series engine, contact the Dealer Solution Network (DSN) for additional information specific to the application.