I installed this on my 1996 4runner and it came with everything I needed to get it working. But it took a long time to align the timing belt. The belt must have a certain number of teeth between each cam pulley and the main pulley. Without these marks, I had to pull the belt back because after turning the crankshaft pulley, the timing lines on the pulleys were misaligned. I took out my old belt and marked the new one by counting the teeth between each mark. Everything is fine now, but alignment marks would help!