As part of our rebuild kit portfolio for a Bosch fuel metering Distributor.
This kit will service the following cast iron Fuel Distributors that contain a stainless steel Diaphragm
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0438100077 0438100028 0438100092 0438100031 0438100097 0438100067 0438100108 0438100080 0438100134
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Mr.K Jet Classic Bosch Search Tool - mrkjet.com(see pictures for location)
As you can see, this kit is an ideal upgrade or direct replacement to the original parts.