HOUSING 5D4811 - Caterpillar

(7RK, 8HK, 2ZL),
350 L (9DK, 3ML, 9FL) ExcavatorsDescription of Change: The track bolts in the track group are improved. The new bolts are made from a material that has an increased tensile strength. The new bolts provide an increase in the clamp load between the track shoe and track link.Adaptable To: The new 143-4891 Track Bolt directly replaces the former 8E-6103 Track Bolt. The new bolt is effective with 350 (7RK397-Up) and 350 L (9DK295-Up, 9FL805-Up) Excavators. It is adaptable to 350 (7RK1-396), 350 L (9DK1-294, 9FL1-804) Excavators, and the models that are listed. There are 188 143-4891 Track Bolts used in order to assemble the 8E-6106, 8E-6108, 8E-6110, and 8E-6112 Track Groups (not serviced) for 350 Excavators.
There are 204 143-4891 Track Bolts used in order to assemble the 1Q-4775, 8E-6107, 8E-6109, 8E-6111, 8E-6113, and 133-8440 Track Groups (not serviced) for 350 L Excavators.