Which forklift can make an excellent pusher vehicle when modifications are added?

The USMC MHE-237 Rough Terrain 4K Forklift is particularly suitable as a pusher vehicle after modifications due to its design and capabilities tailored for rough terrain operations. This type of forklift is built to handle difficult ground conditions, which makes it robust and versatile for pushing loads in various environments.

When considering modifications, the structure and power of the MHE-237 can be upgraded to enhance its pushing abilities further. Its four-wheel drive system provides better traction and stability, which is critical when performing push operations. The forklift's relatively compact size and maneuverability also allow for effective movement and positioning in tight spaces, which can be advantageous in operational scenarios.

In contrast, while other forklifts mentioned might have their own strengths, they may not share the same adaptability for rough terrain pushing as the MHE-237, making it the most fitting choice for this type of task.