HLSmith HLSmith
Driveheads & Axles
Auto Gearboxes
Manual Gearboxes
Power Steering
Propshafts

As the UK's leading supplier of replacement commercial vehicle transmissions parts, H L Smith have a wealth of information about parts and maintenance of your commercial vehicles.

If you have a problem you need to resolve, try our FAQs. If you can't find what you're looking for, please contact us and we'll  get back to you as soon as we can.



Gearboxes - general questions

Is there a warranty on gearbox units?

All Service Exchange units carry a Full 12 months unlimited mileage warranty covering both parts & labour.

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How long does it take to repair a gearbox?

Depending on parts availability, we can usually repair same day or next day.

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Are gearboxes tested?

All units are tested for mechanical functions, oil leaks & noise.

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Do you offer a fitting service?

We offer a full on-site fitting service for manual and auto Gearboxes (and also Steering Boxes, Clutches,  Propshafts, Axles & Differentials. Most vehicles can be accomodated. We also have a on-the -road technician to offer an off-site diagnostic, repair and fitting service. 

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Are air systems & control valves tested?

Air systems are tested as all the piston seals & o-rings are replaced, however some control valves are not tested as they are sealed units that require specialist test equipment.

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Do units come filled with oil?

Units do not come with oil. The first reason for this is, filling the unit with oil would not always give a correct level when fitted to the vehicle, the second reason is oil spillage can occur during transit. Please check with OE manufacturer as to the correct specification of oil to use.

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Do you part repair?

We never recommend carrying out part repairs to units as this tends to lead to problems and is not cost effective in the long run. We advise a full repair which gives you the added benefit of our complete warranty.

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