6.7 5.9 Cummins Rear Main Seal Plate Rear Engine Cover 4937231 3949415 housingCondition: USED REBUILDABLE CORE The Cummins 4937231 Rear Engine Cover designed for 5. 9L and 6. 7L ISBQSB engines is essential for protecting the rear part of the engine. This rear main seal housing plate used primarily in Dodge Ram diesel engines from 2003 to 2018 ensures a secure seal and optimal function. Known for its durable construction and precise fit it plays a crucial role in maintaining the integrity of the engines rear compartment