Last one. For 240D 300D 300CD 300TD 300SD 1977-1985 - tested strong hold on vacuum
Excellent used vacuum shutoff valve. Original Mercedes Part. Tested to hold vacuum. Operates and holds and releases vacuum correctly. Includes used gaskets that are still usable, mounting plate and bolts as shown. This is the unit that is mounted on the back of the fuel injection pump on the W116, W123, and W126 diesel engines from 1977 to 1985.
616 617 Diesel Vacuum Fuel Shut Off Valve ( Used )
$112.00
SKU:
DFSV-DSLA-9 
Product Details
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Diesel 616 617 Vacuum Source Troubleshooting and Repair - by Kent Bergsma
Basic manual on vacuum output and testing. Does not cover all things vacuum. See description
Applies to 240D 300D 300CD 300TD 300SD Diesel This guide is written specifically for owners of 123 and 126 diesels from 1977 up to 1984. There are some sections that apply to the 115 and 116 chassis but it is not specific to those models.
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616 617 Diesel Vacuum Connector Service Kit
For 1975 to 1985 240D 300D 300CD 300TD and 300SD with the 61x diesel engine
FITS THE FOLLOWING: 115, 116, 123, and 126 chassis. Here is a diesel item I have put together that every Mercedes diesel owner should have.