Original Cumins 6BT QSB Engine Parts 24v Starter Motor 3975137 3910564 For Marine Engine

Chongqing Kyson Machinery Equipment Co., Ltd. is one of the leading manufacturers and suppliers of original cumins 6bt qsb engine parts 24v starter motor 3975137 3910564 for marine engine in China. With abundant experience, our factory offer high quality products made in China with competitive price. Welcome to place an order.

1, Suitable for Cummins engine models

Core compatibility with QSB4.5 and QSB5.9 (CM850 electronic control system) two major models:

QSB4.5 Construction Machinery/Generator Sets/Light Ship Machinery

QSB5.9-CM850 (6-cylinder 5.9L, excavator, loader, air compressor, fishing boat, diesel unit)

Compatible devices: Sany, Liugong, Xugong 5.9L excavator, grader, engineering generator set, small engineering ship auxiliary equipment

2, Key data for installation dimensions

Flange installation reference distance: 89mm

Gear extension stroke: 48mm

Total length of the machine: 366mm

Main terminal specification: M8 bolt (B+positive pole)

3, Common fault diagnosis (typical problem of this starter motor)

Weak startup and slow rotation speed

Excessive wear of carbon brushes, excessive clearance between copper sleeves, battery depletion/high voltage drop in the circuit

Only suction without rotation, clattering sound

Electromagnetic switch contact erosion, internal rotor short circuit

Toothed, unable to mesh

One way clutch slipping, missing teeth on flywheel ring gear, misaligned installation gasket

Idle without resistance

Bendix clutch spring failure, unable to disengage flywheel

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