NEGATIVE EARTH

1x Smiths OEM Instrument Voltage Regulator Stabiliser BMK1539, BMK1539A, BR1303-20 & C28051

Negative Earth only

British-made by Smiths Caerbont Automotive provides gauges such as temperature, fuel and other electrical gauges a regulated 10v supply preventing voltage fluctuation.

(If gauges are reading incorrectly or fluctuating it may be this unit that needs replacement)

Unit clips into the rear of the dashboard or the back of the gauge.

As fitted to:

Daimler Sovereign Series 1 (1969-73)

Jaguar XJ6 & XJ12 Series 1 (1969-73)

Leyland 253, 245, 255, 270, 282, 344, 384, 262, 272, 285, 2100, 462, 472, 482, 485, 2100 & 4100

Marshall 502, 602, 604, 702, 704, 802, 804 & 904XL

Mini Clubman with Twin or Triple Clock Set up until 1988

Nuffield 3/45 & 4/65

Range Rover Classic

Rover 3500 (1971-88)

Wiring instructions:

E - Earth Vehicle earth (Negative)

I - instruments

B - Battery Positive Power Supply (usually via ignition switch)

BR1303-20NEG, BR1303-20, BMK1539A, BMK1539, C28051, BMK1727, NCB149