Bosch part number 0261230439, various Mercedes-Benz part numbers. OEM Bosch part supplied.

4 bar MAP sensor suitable for diesel engines and pre-throttle pressure sensing only. Linear range from 500 to 4000 millibar.

This is the original MAP sensor used on Mercedes-Benz OM651 and OM642 engines, maybe more. Perfect plug in upgrade for OM613/OM648 and derivatives. Has an O ring to plug into a 7mm hole on the intake manifold or pipe, and can also accept a rubber hose.

Calibration for DID1:

voltage range 0.3 to 5.0 volts, pressure cal 350 to 4350mbar. Valid voltage range 0.2 to 4.9 volts.

A matching connector is also available: https://controls.is/shop/3PINMQS

Note that this sensor can not be used as a MAP sensor on a petrol engine as it does not have enough range into vacuum.