SureStart S40

The SureStart S40 Spring Starter is suitable for diesel engines up to 476 cubic inches (7.8 litres) and is available as a clockwise model. Smaller engines can be started using S20 or S30 spring starters. S50, S60 and S70 spring starters are available for larger engines.


The SureStart S40 Spring Starter serves engines which have a slightly larger capacity than the S30 starter can handle or engines that need low temperature starting.

The S40 Spring Starter is used in many applications including Caterpillar, Cummins, Detroit, Man, Perkins, Scania and Volvo.


Video: Operating a Spring Starter


SureStart S40 Specifications

Rotation S40C: clockwise
Mounting Flange-mounted SAE 1; SAE 2; SAE 3; SAE 4
Engine capacity 1.3 litres (79.3 cubic inches) per cylinder; 6 cylinders maximum
Pinion type 11 to 13 teeth 10/12 F/stub
11 to 13 teeth 8/10 F/stub
11 teeth 6/8 F/stub
9 to 13 teeth Mod 3
10 to 13 teeth Mod 3
Pinion to flange face 20mm, 28mm, 47mm and other variations.
Maximum torque at pinion 126 Nm (93 ft/lb)
Maximum winding handle torque 81 Nm (60 ft/lb)
Winding handle position Variable in 8.5 degree increments
Turns to fully wind 2.0 turns to engage
11.5 turns to fully charge
Weight 18 kg (39.7 lb)
Cold start Starting aid below 5 degrees Celsius
Finish Standard finish: zinc-plated body and housing; body painted with a further coat of primer and topcoat.


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