Getting the correct part for a steering unit is critical, and that starts with supplying the correct details for the part to be supplied, and a small error in the details provided early on can mean a costly return.
Why Registration Alone Can Fall Short
Even registration plates carry many limitations. For example, the registration plate will give the year of manufacture and possibly the model (i.e. trim level). However, manufacturers vary steering specifications between models. Additionally, a model can be produced to regional specifications, or even ordered through company fleets and therefore arrive as grey import vehicles.
How a VIN Narrows the Spec Down
A vehicle’s full chassis number or VIN number will confirm the vehicle’s exact factory specification for a Steering Box part. This will determine whether the vehicle was originally fitted with a high-ratio or low-ratio unit and what alternative part would be suitable for replacement and ensure correct operation.
Why Engine Code Matters
In some cases, a specific steering specification can differ based on the different engines fitted to the same model. For example, a diesel variant of a model may require a different pump pressure to the corresponding petrol model, and therefore a different steering box.
How Production Date Resolves Mid-Run Changes
Parts changed within a model year can often change specification halfway through the model year. There is more on Steering Box at https://westernpowersteering.co.uk/steering-parts/box/.
If the Vehicle Has Been Modified
Modified previously? For example, fitted a non-standard substitute? Even if previously modified by a reputable dealer, please inform us of any previous modifications. Compare the physical dimensions of any previous steering box to the old unit and to the new part against the spline count.
It helps to get this right from the off. Avoiding mistakes, and saving time and money in the long run by not having to go back for a second fit.
