The 2.0 oil filter flange houses 1 blank plug and a stock oil pressure sending unit - both with M10x1 threads. Stewart Warner gauges use 1/8" NPT sending units. 1/8" NPT and M10x1 are not compatible. Installation of SW oil temperature and pressure senders require a variety of adaptors. The following information applies to SW senders being installed in the mk4 2.0 only.

When using SW gauges, oil temperature must be measured at the oil pan. SW's temperature sender uses 1/8" NPT threads which are not compatible with plug #10. Simply use our Universal Oil Temp Adaptor, part # 42-908 to install the SW sender in the oil pan.

To measure oil pressure you will need to use our Oil Pressure Relocation Kit, part # 42-008. Our kit will allow you to install both the SW 1/8" NPT oil pressure sender and the OEM oil pressure sender remotely. The oil pressure relocation kit will take the place of the stock oil pressure sender, #11 as shown below. The stock sender will now be located aside the SW sender 12" away from the oil filter flange where sufficient room exists.

Tools Required:
24mm Deep Socket

When installing oil sending units it is important to maintain a ground between the sending unit and the engine block. Ground is normally maintained in the threads of the sending unit. Use only 1 wrap of teflon tape on sender threads to assure no leaks or loss of ground.