Cummins 53 Crack Repair Reinforcement

If you've discovered that the trucks in your fleet have cracked engine blocks, then you know the frustration that comes with trying to find the source of the issue and then repairing the cracks. For Cummins engines with the number 53 cast on the side of the block, there are answers already, and they come from LOCK-N-STITCH Inc. For over 30 years, LNS has delved deep into the problems associated with cracks and other types of damage in cast metals to find real solutions.

The blocks with the number 53 cast on the side seem to be the only ones with this problem, but it is common enough that the LNS technicians put serious time into learning the cause and developing a solution. The cause of the crack on the 5.9 "53" Cummins block is due to a combination of factors, but they center on the needed period of warming up the engine after a cold startup and not on the weight of the load.

The solution does not involve welding of the cast iron. This can, in fact, worsen the condition of the area, making it brittle, hard, and usually ends up causing more cracks and leaks than there were. LOCK-N-STITCH performs their expert metal stitching and follows that immediately with the installation of their new LC59RB reinforcing bracket to provide continued strength to the side of the block to prevent future damage.

To learn more, read the many articles here that address the Cummins block issue. Then, to get your own repair kits or to have the experts of LOCK-N-STITCH come and fix your block for you, contact them today. Call LNS at 800-736-8261 or 209-632-2345, or contact them by email at gary@locknstitch.com.