I bought a genuine Landrover belt kit at the start of the 300 TDI problems, the only difference I found in the kit (front case, pulleys, belt, bracket etc) was the small bracket bolting the back of the injection pump to the block now had movable bushes in the fixing holes where the previous one did not. It would appear that machining tolerances could cause the origional bracket when tightened to pull the front casing out of alignment thus making the belt run against the front edge of the injection pump pulley until you had belt failure. With the new bracket fitted any misalignment was taken care of by the movable bushes.
