Contents of Maruha Oil Block Adaptor
Left (from the outside to the inside): Adaptor body/ O-ring 68mm/ O-ring 56mm
Right: Two center bolts for all MIATA models
Normal car races and autocrosses will give you great fun if cars are well
tuned.
However, the engine condition must be always checked to prevent the trouble
in severe circumstances.
Gauges in normal cars, unfortunately, cannot read precisely the status.
In order to make the engine condition visible, extra monitoring devices
such as gauges for oil pressure, water and oil temperature are must-have
accessories.
There may be numbers of owners who are interested in these extra gauges, but it seems that some of them do not have any ideas about how to and where to install them into cars.
Maruha Oil Block Adaptor, a user-friendly tool, will help you to set up extra gauges easily.

The picture below shows how to install Maruha Oil Block Adaptor, which
is fixed between an oil filter and an engine block (cylinder block) to
set up gauges for oil temperature and/or oil pressure.
The product allows them to be fixed with two 1/8 PT threads for electric
oil pressure and temperature gauges, and with one 14mm~1.5mm thread for
mechanical oil temperature gauge.
Furthermore, the additional center bolts make the oil block suitable for
MIATA all models.
Maruha Water Temperature Gauge Adaptor is also available.
For more information, please visit the page on Maruha Water Temperature
Gauge Adaptor.
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