The THOR-NT dummy has been developed and continuously improved by NHTSA to provide manufactures an advanced tool that can be used to asses injury risk in crash tests. With the recent improvements of finite element (FE) technology and the increase of computational power, a validated FE model of the THOR-NT provides an efficient tool for design optimization of vehicles and their restraint systems. The main goal of this study is to assess the current version of THOR-NT FE dummy model in the frontal crash environment. A three-dimensional (3D) FE model of the dummy was developed in LSDyna based on the drawings of the THOR-NT dummy. The material properties of the deformable parts and the properties of joints connecting rigid components were derived from the impact test data. To provide validation data for the assembled dummy model, two 40 km/h sled tests were conducted with the dummy restrained by a standard belt system and positioned in a rigid seat with the legs constrained at the knees. The upper body kinematics of the dummy was recorded by means of a 3D motion capture system that tracked the movement of retro-reflective markers attached to the dummy and to the buck. The dummy model fidelity was quantitatively assessed by comparing the displacement time histories of upper body and the reaction forces from the crash simulation with the corresponding data from the sled test. While the relatively low score of the model (0.55 -on a scale from 0 to 1) suggests the need of additional model improvements and validations under different test conditions (e.g., different shapes of deceleration pulses, and initial velocities), its reasonable performance in the direction of sled deceleration during 40 km/h frontal crash event would recommend it for use in impact simulations intended to improve the design of new vehicles and their restraint systems.