About Jaguar Mark IX

The model was introduced to the public in 1958 at the “Earls Court Motor Show”. Early versions completely replicated the body of the Jaguar Mk VIII, but later, rear turn signal indicators were added to the car.

The new model was distinguished primarily by technical changes: a 3.8-liter engine producing 220 horsepower, disc brakes on all wheels, power steering as a standard option, and a redesigned ventilation and heating system for the cabin.

The car remained in production until August 1961, after which the Jaguar Mk X was launched. A total of 10,005 cars were produced: 5,984 with right-hand drive and 4,021 with left-hand drive.

Jaguar Mark IX Overview

The Jaguar Mark IX, launched in 1958, was a luxurious saloon that improved on its predecessor with a powerful 3.8-liter engine, four-wheel disc brakes, and optional power steering. Known for its elegant design and premium interior, it offered a perfect blend of performance and comfort. Produced until 1961, the Mark IX remains a classic symbol of Jaguar’s luxury and innovation.

Jaguar Mark IX Technical Specification

Engine:

Configuration: Inline 6-cylinder.

Displacement: 3.8 liters (3781 cc).

Power: 225 hp.

Bore: 87 mm, Stroke: 106 mm.

Compression Ratio: 8:1 (optional 9:1 for export models).

Features:

Cast iron block and aluminum cylinder head with spherical combustion chambers.

Dual horizontal S.U. H.D.6 carburetors with electric choke control.

Fully balanced crankshaft with seven bearings.

Advanced cooling system with an integrated pump and thermostat.

Chassis and Suspension:

Frame: Sturdy steel frame with high torsional rigidity.

Suspension:

Independent front suspension with torsion bars and wishbones.

Rear suspension with semi-elliptical leaf springs and telescopic shock absorbers.

Transmission:

Options:

4-speed manual gearbox.

4-speed manual with overdrive.

Borg Warner automatic transmission.

Clutch:

10-inch spiral-type dry clutch (manual versions).

Gear Ratios (Manual):

Top: 4.27, 3rd: 5.16, 2nd: 7.47, 1st+Rev: 12.73.

Overdrive (optional): Top: 3.54, 3rd: 4.55, 2nd: 7.96.

Brakes:

Type: Four-wheel Dunlop disc brakes (standard).

Handbrake: Lever between the front seats.

Wheels and Tires:

Wheels: Steel wheels with decorative chrome rims.

Tires: Dunlop 6.70×16 Road Speed.

Spare: Stored in the trunk.

Interior:

Luxurious five- or six-seat configuration with polished walnut and leather upholstery.

Features include ventilated windows, lockable rear doors, and wool carpets.

Adjustable front bench seat and rear folding trays.

Dashboard equipped with lockable glove compartments and elegant instrument panel.

Fuel System:

Dual fuel tanks with a total capacity of 20 1/2 gallons (11 + 9 1/2 gallons).

Twin S.U. electric fuel pumps with dashboard fuel selector.

Dimensions:

Length: 16' 4 1/2".

Wheelbase: 10'.

Width: 6' 1".

Height: 5' 3".

Ground Clearance: 7 1/2".

Turning Circle: 36'.

Trunk:

Spacious 17 cubic-foot luggage compartment.

Jaguar Mark IX Photogallery