This genuine TCM Z8941529121 Main Bearing Set is specifically designed for Isuzu C240 engines, commonly found in a wide range of TCM forklift models including FG10, FG14, FG15, FG18, FG20, FG25, FG30, FD10, FD14, FD15, FD18, FD20, FD25, and FD30. The set features a precise 0.50mm undersize, making it essential for engine rebuilds where the crankshaft has been ground. It ensures proper fitment and restores optimal engine performance for compatible TCM industrial equipment.