Lucas C42

This 12V Dynator unit replaces the Lucas C42 and is available with or without the rear mounted tachometer drive and for both negative and positive earth applications.  It has an output of 50A compared to 25A of the original and weighs approx 4.5kg, compared to 5.8kg originally.

To ensure that the dynamo on your vehicle is a C42, it should be stamped with 'C42' on the case. If you cannot find this, check the distance between the mounting flanges, it should be approximately 174mm and the diameter of the body 4.2" (107mm).

• Diameter 4.2" (107mm)
• Internal mounting flange distance (Dim A) 174mm
• shaft diameter 15mm
• 50A output
• 4.5 kg
• 3 year guarantee

As standard, units are supplied fitted with cooling fan and 63mm diameter pulley suitable for 10mm wide ('Z' section) belt. If a different pulley is required, then please enquire. Alternatively, use your original pulley on the new unit as the shaft sizes are the same.

This Dynator can also be supplied fitted with a 80mm diameter, 'w' section pulley suitable for Jaguar E type 3.8/4.2 Series 1. (LMDC42-LMP72) - Negative Earth.

We can also supply the LMDC42 with rear drive provision for a power steering pump, as fitted to various Jaguars and Alvis's etc. This is our part LMDC42RD - Negative earth.

Electrical connection to the vehicle is easy and straight forward using the original dynamo control box as a junction box. Fitting instructions are given in the downloads section below (one for negative earth installations, the other for positive earth). Alternatively, the original voltage control box can be removed and replaced with a fused dummy control box, which can be used as a suitable junction box to easily connect the Dynator to the vehicles wiring.