Throttle Motor

These motors convert the pressure energy of hydraulic oil into mechanical energy and are the main actuators for excavator operation.

1. Travel Motor
Function: Drives the excavator's tracks or wheels, enabling it to move forward, backward, and steer.
Location: Mounted inside the drive wheel of the tracks or wheels.
Characteristics:
Typically a low-speed, high-torque hydraulic motor.
Integrates a travel reducer, converting the motor's high-speed rotation into the low-speed, high-torque rotation required by the tracks.
Many modern excavators use variable displacement motors for their travel motors, which automatically adjust the displacement according to the load, enabling high and low speed gear switching to improve efficiency.
Equipped with mechanical or hydraulic braking functions to prevent the excavator from slipping on slopes.

2. Slewing Motor
Function: Drives the upper platform (cab, boom, bucket, etc.) to rotate 360 degrees.
Location: Located next to the slewing bearing gear on the upper frame.
Characteristcs:
Requires smooth, precise, and shock-free starting and stopping.
Built-in slewing reducer and normally closed brake. The brake automatically locks when hydraulic pressure is not applied to prevent accidental rotation of the cab; when slewing is operated, the hydraulic oil first releases the brake, then drives the motor to rotate.

3. Main Pump (Hydraulic Pump) Drive Motor
Description: This is a special and crucial "motor." It is not an actuator itself, but the core of power conversion.
Function: It is directly driven by the output shaft of the engine (diesel engine), but it is actually a hydraulic pump. It draws oil from the tank, generating high-pressure hydraulic oil to power the entire hydraulic system (including the travel motor, slewing motor, cylinders, etc.).
Type: Usually a swashplate axial piston variable displacement pump, which can automatically adjust the output flow according to load requirements to achieve energy saving.

II. Auxiliary Electric Motors
These are small electric motors, mainly used to power comfort and convenience functions in the cab.

4. Air Conditioning Compressor Motor
Function: Drives the air conditioning system compressor, providing cooling and heating (in some models) functions for the cab.
Power Source: Powered by the excavator's battery and generator. 5. Fan Motor
Function: Drives the cooling fan in front of the radiator to dissipate heat from the engine coolant, hydraulic oil, etc.
Type:
Traditional: Directly driven by the engine via a belt, its speed is tied to the engine speed.
Modern/High-end: Increasingly uses hydraulic motors or electro-hydraulic motors, which can independently control the fan speed according to cooling needs, making it more energy-efficient and effective. Strictly speaking, it falls under the category of hydraulic motors, but the control method is more intelligent.

6. Window Regulator Motor, Wiper Motor, etc.
Function: Similar to those in automobiles, controlling window operation, wiper oscillation, etc.
Power Source: Battery powered.
III. Specially Configured Motors
Some specific types of excavators also have more specialized motors:

7. Main Drive Motor of Electric Excavators
Application: In pure electric excavators.
Function: Replaces the diesel engine in traditional excavators. It is a high-power AC or DC electric motor that directly drives the hydraulic main pump, providing power to the entire hydraulic system. This is the "heart" of the electric excavator.

8. Vibratory Motor
Application: Mounted on attachments such as vibratory rollers or hydraulic rammers.

Throttle Motors: Electronic Throttle Actuators & Stepper Motors for Komatsu, CAT, Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Volvo
Swing Motors: Swing Motor Assemblies & Parts for Major Excavator Brands
Travel Motors: Travel Motor Assemblies & Parts for Major Excavator Brands
Pump Solenoid Valves: Proportional Solenoids for Hydraulic Pump Control

Throttle Motor

Komatsu

Caterpillar

Volvo

Hitachi

Hyundai

JCB

Doosan

Kobelco

Case

John Deere

Sumitomo

Liebherr

Excavator Motors

COGENG 4360895 John Deere Hitachi Throttle Motor | Direct OEM Replacement

COGENG 4614911 John Deere & Hitachi Throttle Motor | OEM-Compatible Engine Speed Control Actuator

COGENG 4257163 John Deere Throttle Motor | Direct OEM Replacement for 190E-992ELC Excavators & 6101 Machine

COGENG 4188762 John Deere Throttle Motor | Direct OEM Replacement for 490D-992DLC Excavators

COGENG 247-5214 2475214 Caterpillar Excavator Throttle Motor | Direct OEM Replacement for 320C 320D Series

COGENG 247-5211 2475211 Governor Throttle Motor | Dual Cable 7-Pin Design for CAT 318C 319C Excavators

COGENG 247-5227 2475227 Caterpillar Throttle Motor | Double Cable 6-Pin Design for E320 E312 Excavators

COGENG 247-5232 2475232 Caterpillar Throttle Motor | Direct OEM Replacement

COGENG Premium Throttle Control Motor for Komatsu Excavators | Direct Replacement for 22B-43-13130 | Engine RPM Actuator

COGENG Premium Throttle Motor Assembly for Kobelco Excavators | Direct OEM Replacement for P/N 2406U197F3 & 2406U197F4

COGENG OEM-Compatible Electronic Throttle Motor for Kobelco Excavators | Replaces YN20S00002F2

COGENG OEM-Compatible Electronic Throttle Motor for Kobelco Excavators | Replaces YN20S00002F1

COGENG OEM-Compatible Throttle Motor for Caterpillar Equipment | Replaces 111-5497 | Round Plug Connector Type

COGENG OEM-Compatible Throttle Motor for Caterpillar E305C E307B Engines | Replaces 102-8007 | Square Plug Connector

COGENG Premium Throttle Motor for Caterpillar B-Series Excavators | Replaces OEM 119-0633

COGENG OEM-Compatible Throttle Motor for Caterpillar 345B/345C Excavators | Replaces 151-9326 | Engine Throttle Actuator

COGENG OEM-Compatible Throttle Motor Actuator for Volvo EC210/EC240 Excavators | Replaces VOE21124198 & VOE20881577

COGENG OEM-Compatible Throttle Motor for Volvo EC220/EC290 Excavators | Replaces VOE14529290 | Engine Throttle Actuator

COGENG OEM-Compatible Throttle Motor for Hitachi ZX200/ZX210 Excavators | Replaces 4360895 | Engine Throttle Actuator

COGENG OEM-Compatible Throttle Motor for Hitachi Equipment | Replaces 4257164 | Precision Engine Control Actuator

COGENG 4257164 | John Deere Throttle Motorr OEM-Compatible Engine Throttle Actuator

COGENG AUC10902 TCA17261 John Deere Throttle Moto for 40R877 D125 D130 D155

COGENG GY21984 OEM-Compatible Throttle Motor Control Lever for John Deere

COGENG MIA12648 MIA11058 John Deere OEM-Compatible Throttle Motor

COGENG OEM-Compatible Throttle Motor for Hitachi ZX200/ZX210 Excavators | Replaces 4360509 | Engine Throttle Actuator

COGENG 4614911 OEM-Compatible Throttle Motor for Hitachi ZX330/ZX350 Excavators | Engine Speed Control Actuator

COGENG OEM-Compatible Throttle Motor for Hitachi EX200/EX220 Excavators | Replaces 4188762 | Engine Throttle Actuator

COGENG OEM-Compatible Throttle Motor for Hitachi ZX330/ZX350 Excavators | Replaces 4257163 | Engine Speed Control Actuator

COGENG OEM-Compatible Throttle Motor Set for Hyundai R210/R260 Excavators | Replaces 21EN-32380 & 21EN-32381

COGENG OEM-Compatible Throttle Motor for Hyundai Excavators | Replaces 21EN-32360 | Precision Engine Control Actuator

COGENG OEM-Compatible Throttle Motor for Hyundai Excavators | Replaces 21EN-32340 | Precision Engine Control Actuator

COGENG OEM-Compatible Throttle Motor for Hyundai R140/R170 Excavators | Replaces 21EN-32200 | Engine Speed Control Actuator

COGENG OEM-Compatible Throttle Motor Set for Hyundai R220/R290 Excavators | Replaces 11E9-60010 & 21E5-3003

COGENG OEM-Compatible Throttle Motor Set for Hyundai Excavators | Replaces 11E9-4603, 11E9-46071, 11E9-46072 & 11E9-62010

COGENG OEM-Compatible Throttle Motor for Komatsu Equipment | Replaces 22B-43-11251 | Precision Engine Control Actuator

COGENG OEM-Compatible Throttle Motor Set for Komatsu Excavators | Replaces 22B-43-11141, 22B-43-11142 & 22B-43-11143

COGENG OEM-Compatible Throttle Motor Set for Komatsu Equipment | Replaces 7834-41-2000, 7834-41-2001, 7834-41-2002 & 7834-41-2003

COGENG OEM-Compatible Throttle Motor Set for Komatsu Equipment | Replaces 201-43-72120, 201-43-72121 & 201-43-72122

COGENG OEM-Compatible Throttle Motor Set for Komatsu PC200-8/PC220-8 Excavators | Replaces 22U-06-11111 / 22U-06-11113

COGENG OEM-Compatible Throttle Motor for Komatsu PC130-8/PC138-8 Excavators | Replaces 22U-06-11790 | Engine Speed Control Actuator