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4K COMPACT MOTOR/ADK25AJ06AA000000000000

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Description & Features

Designed for demanding mobile equipment applications, the Char-Lynn 4K Compact Motor (ADK25AJ06AA000000000000) is a low-speed Geroler-type hydraulic motor built for skid steer loaders, fairway mowers, and harvesters. Cast iron construction provides durability in high-cycle, high-load environments where reliability is critical.

The 4KC Series supports a flow rate of 75 litres per minute and delivers a torque rating of 800 newton metres, making it well suited to wheel drive and similar high-torque, low-speed applications. Available in standard, wheel, and bearingless configurations, it offers installation flexibility across a range of equipment designs. The disc Geroler design is noted for its low pressure drop, which contributes to energy efficiency across the hydraulic circuit.

SKU: 169-0076-001

Supplier Part Number (MPN): 169-0076-001

Specifications

Brand
Danfoss
Bearing Type
Tapered Roller
Check Valve Function
With Check Valve Function
Design Code
1
Dimensions
11.37 in L x 5.34 in W x 4.4 in H
Frame Size
405
Housing Material
Iron
Mounting Type
4-Bolt Flanged
Orbital Gearwheel Set
Standard
Orbital Gearwheel Set Type
Geroler
Painted
Without Painted
Port Location
Side, Staggered
Port Type
UNF-2B, SAE O-ring
Seal Material
NBR
Series
4000 Compact Series
Shaft Type
Splined
Valve Type
Disc

Product Questions & Answers (1)

Question by: Debbie R on Feb 4, 2026, 8:41 PM
flow rate on this one says 75 litres per minute -- is that enough to run wheel drive on a skid steer without bogging down?
Answer by: Customer Support on Feb 6, 2026, 8:40 AM
For wheel drive on a skid steer, 75 litres per minute is right in the wheelhouse for a motor in this class. The 4KC Series is rated at 800 newton metres of torque, so it's built to handle the kind of load you'd see in that application without losing grunt at low speed. The Geroler design also keeps pressure drop lower than most motors in this category, which means less wasted energy across the circuit and better response when you're pushing the machine hard.

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