Item 70135307 has must read information.
: Per the vendor this fuel injection pump is not available for service replacement. To determine the correct replacement you must verify the series of fuel injection pump fitted to the engine. You can determine the series by looking at the fuel injection pump model plate. The model plate will be marked with a series designation of A, B, C, or D. The fuel injection pumps must always be replaced with the same series that was originally fitted to the engine. (Note: All engines will only contain one series of pump, they will not and/or can not be mixed and matched.) Series A - JLG p/n 70001128 Series B - JLG p/n 70001129 Series C - JLG p/n 70001130 Series D - JLG p/n 70001131
