Item description: Jensen FF Maxaret Solenoid unit complete for sale. A rarely seen Maxaret Solenoid unit complete with all three vacuum pipes and original unique anodised grey finish to the valve body.

Condition report: This Maxaret Solenoid unit surviving in excellent condition. The main body with 95% of its unique original grey anodised finish. The unit complete with its black painted steel mounting section, and also the three vacuum pipes. The excellent overall condition of this unit means that it could even be cleaned further and used on a concours finished Jensen FF.

Special notes: Of extreme rarity. Not generally available on the market place. See the Museum feature, to learn more about the Jensen FF Maxaret control system.

General notes: Dunlop Maxaret was the first anti-lock braking system (ABS) to be widely used. Introduced in the early 1950s, the Dunlop Maxaret was rapidly taken up in the aviation world, since testing found a 30% reduction in stopping distances, and the elimination of tyre bursts or flat spots due to skids. Harry Ferguson Research had worked with Dunlop on the Maxaret project, with the idea of the system being integrated into their pioneering four-wheel-drive package. In 1965, the world’s first four-wheel-drive car with Maxaret anti-lock braking was unveiled, the Jensen CV8 FF.

Background to the Jensen FF: The Jensen FF is a four-wheel drive grand tourer produced by British car manufacturer Jensen Motors between 1966 and 1971. It was the first non all-terrain production car equipped with four-wheel drive[1] and an anti-lock braking system.

The use of four-wheel drive in a passenger car preceded the successful AMC Eagle by thirteen years and the Audi Quattro by fourteen years, and the Subaru Leone by five years. The Dunlop Maxaret mechanical anti-lock braking system had previously been used only on aircraft, lorries, and racing cars. An experimental version was first fitted to the earlier Jensen C-V8, but this did not go into production.

The letters FF stand for Ferguson Formula, after Ferguson Research Ltd., who invented the car’s four-wheel drive system. The FF is related to the similar-looking, rear-wheel drive Jensen Interceptor, but is 127 mm (5.0 in) longer, and mechanically very different.

Ordering: or telephone: +1694-781354