If only the injection pump cover has come off, there is no need to buy a full set of gaskets and the set shown here, which is for the cover only, will suffice.
This set includes two cover gaskets for turbo and non-turbo engines, so you'll always have a spare.
If you have a non-turbo diesel engine and are doing a complete overhaul, get the complete turbo kit (see "other models" tab) with the cover gasket kit listed here as an extra. Indeed, the most complete kit is for turbo engines, the cover gasket making the difference between a turbo and a non-turbo engine.
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