SIGMA-TEK ENGINE GAUGE 1U378-103

Sigma Tek Multifunction Engine Gauge 1U378-103. The Sigma Tek Multifunction Engine Gauge 1U378-103 combines the three essential engine parameters in one compact and durable package. This 3” instrument has a color context of white per 8A015-002, and a black background per 8A013-001. The 1U378-103 has rugged D’Arsonval meter movements, including two jewels which are used to indicate cylinder head and oil temperatures. A brass bourdon tube mechanism precisely indicates oil pressure.