Allison
Allison Transmission is the world’s leading designer and manufacturer of medium and heavy duty, fully automatic powershifting transmissions. It was the first to introduce the first fully automatic, power shifting transmission for commercial truck applications and today the company delivers around 80 percent of the world’s commercial vehicle fully-automatic transmissions. These transmissions can be found in applications ranging from buses to heavy-duty off-highway equipment.
Authorised Allison Transmission Dealer
Sparks have been the authorised Allison transmission dealer for South Wales and the South West since acquiring EH Hewitt & Co. in 1990. Proud to continue the excellent levels of service, Sparks have now consolidated both businesses into a 10,000 ft2 purpose-built facility in Caerphilly.
In-house gearbox changes are made simple with our drive in and out workshops and our in-house technicians rebuild, repair and test to the manufacturers’ exacting standards.
At Sparks we make sure that every tramission is rigorously tested, this includes dynamometer and pressure decay testing. Our clients can rest assured that our transmissions are not shipped until they pass all our scheduled tests.
Gearbox Guarantee
In addition, we make sure that each exchange gearbox is offered with a Factory warranty which offers fleet operators and sole traders complete peace of mind. Sparks Offers genuine Allison ReTran® factory rebuilt transmissions for AT500, 1000, 2000, 3000 and 4000 series on highway transmissions.
National contracts have been negotiated with the main on highway operators offering exceptional value for money backed by Allison’s legendary warranty backup.
