Identifying the correct Thwaites machine is essential for purchasing spare parts. Sometimes, knowing the model or machine number suffices, as variations may be minimal. However, changes over time or subtle differences between models can complicate identification.

The most reliable method to order spare parts is by using the serial number. Knowing the serial number allows our team at L&S to quickly and accurately identify the component you need.

Serial numbers can be located in various places on different machines, depending on the brand and model. They often provide additional information about your machine, such as the manufacturing date or unique features. For instance, some engines include shaft size in their serial numbers.

Thwaites applies this practice to all their MACH diggers, with each part of the serial number indicating different features of the machine. For Thwaites, the serial number or VIN (Vehicle Identification Number) is typically found on the side of the machine beneath the yellow covering.

The first four characters of the Thwaites serial number or VIN (shown in the image below) are crucial, as they indicate the MACH number of the machine. This provides the broadest identification of the machine. See below for how this is presented.

The next two digits, shown below, indicate the year of manufacture. Refer to the image below:

Following the year, the serial number includes a two-digit prefix. This indicates your machine's parts manual issue, ensuring that the parts diagram you consult matches your machine. See below:

Finally, a set of five characters follows. This number is the unique serial number of your machine, distinguishing it from others with the same MACH number. Below is how this is presented:

This breakdown gives you the complete Thwaites VIN Number and its significance. Always record your VIN Number, as it can wear away or the badge may break off. Keep this number safe to ensure confidence when ordering spare parts.

Here’s a practical example:
SLBD – terex
D – dana transmission
N – newge axles
00 – spare digits
E1 – year 2001
01 – January
HD – 6-ton forward tip dumper with Perkins engine
022 – machine s/n