Cummins SO99914 Engine Long Block Assembly LK9.5

This engine long block assembly (Part Number SO99914) is engineered as a direct replacement for the Dongfeng Cummins LK9.5 series 9.5-liter diesel engines. The long block configuration typically includes the cylinder block, crankshaft, connecting rods, pistons, cylinder head assembly, camshaft, and valvetrain components, assembled to OEM specifications for heavy-duty commercial vehicle applications. The LK9.5 platform is an electronically controlled, high-pressure common rail inline six-cylinder engine platform produced by Dongfeng Cummins Engine Co., Ltd. This assembly is designed to meet the performance and durability requirements of long-haul and heavy-load transport operations. Material composition features high-strength alloy cast iron cylinder block and cylinder head, forged steel crankshaft, and aluminum alloy pistons with oil cooling galleries. Precision machining ensures geometric tolerances for combustion sealing and bearing clearances. Application fitment covers Dongfeng Tianlong Flagship, Tianlong, and Tianjin series heavy-duty trucks equipped with the LK9.5 powerplant. Installation requires transfer of external accessories including fuel system, turbocharger, air compressor, starter, alternator, and engine management sensors from the original unit. Verification of engine serial number (ESN) and calibration code is recommended prior to installation to ensure ECU compatibility.