
Throttle Motor for Caterpillar THROTTLE MOTOR CAT 320D2 Excavator | Also Fits CAT313D2
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | GCO Code | Part Type | Availability |
|---|---|---|---|---|---|
| Caterpillar (CAT) | THROTTLE MOTOR CAT 320D2 / CAT313D2 | 3863439 / 4837809 / 4837810 / 5099704 CAT 313 / 5099705 CAT320D4 / 2457813 / 3886844 | A23.8 | THROTTLE / ACCELERATOR MOTOR ASSEMBLY | ✓ In Stock |
Product Description
OEM Part Numbers: 3863439 / 4837809 / 4837810 / 5099704 CAT 313 / 5099705 CAT320D4 / 2457813 / 3886844
Machine Compatibility
| Machine Model | Type | Part Number |
|---|---|---|
| THROTTLE MOTOR CAT 320D2 | Hydraulic Excavator | 3863439 |
| CAT313D2 | Hydraulic Excavator | 4837809 |
The 3863439 throttle motor cat 320d2 / cat313d2 is an electrically driven mechanical component for the THROTTLE MOTOR CAT 320D2 / CAT313D2, providing reliable motor-driven operation of a key machine system under all operating conditions. Motor failure disables the function it controls, causing operational restrictions and potentially creating unsafe working conditions on site. Engineered to OEM standard 3863439 for direct installation on the THROTTLE MOTOR CAT 320D2 / CAT313D2 with no wiring or mechanical modifications required.
Key Features:
- Reliable Motor Output: Delivers consistent mechanical power to drive the target machine system under all operating conditions.
- Direct OEM Replacement: Manufactured to specification 3863439 for plug-and-play installation on the THROTTLE MOTOR CAT 320D2 / CAT313D2.
- Heavy-Duty Construction: Built to endure the continuous electrical and mechanical demands of industrial machinery operation.
The 3863439 throttle motor cat 320d2 / cat313d2 delivers reliable motor-driven performance and operational continuity on the THROTTLE MOTOR CAT 320D2 / CAT313D2.
What Does This Throttle / Accelerator Motor Assembly Do?
Controls engine RPM by adjusting the fuel injection pump rack or electronic throttle actuator in response to the throttle dial or lever position set by the operator. Allows the operator to set and maintain working engine speed.
Possible Throttle / Accelerator Motor Assembly Problem Symptoms
If your machine is showing any of the following, a faulty throttle / accelerator motor assembly may be the cause:
- Engine not holding the selected RPM and hunting or surging
- Throttle unresponsive — engine stays at idle regardless of dial position
- Machine lacking power due to insufficient fuel rack travel
- Throttle-related fault code on the monitor display
Why Buy From GCO Products?
Gautam & Company has been supplying earthmoving machinery spare parts since 1999. Here is why contractors, fleet operators, and dealers across India trust us.
Over 27 years of experience in the earthmoving parts industry.
Our team helps you confirm the right part before you order.
Proper GST invoices on every order for your accounting needs.
Fast dispatch from Jalandhar to all states across India.
Volume pricing available for fleet owners, dealers and distributors.
Both genuine OEM and quality aftermarket options available.
How to Confirm Compatibility
To ensure this part is the correct fit for your machine, have the following ready when you contact us:
- 1Machine Model & Year
E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.
- 2Machine Serial Number
Found on the machine's chassis plate. Helps confirm the exact production variant.
- 3OEM Part Number
From your parts manual, the old part itself, or the machine's service documentation.
Not sure if this part fits your machine?
WhatsApp Us to Confirm Typically replies within a few hoursDisclaimer: This is an aftermarket replacement part supplied by GCO Products (Gautam & Company) and is not manufactured by, affiliated with, or endorsed by the original equipment manufacturer (OEM). All brand names, model numbers, and OEM part numbers referenced on this page are used solely for the purpose of identifying compatibility and describing the application of this part. All trademarks, registered marks, and brand identifiers remain the exclusive property of their respective owners. GCO Products claims no association with, sponsorship by, or endorsement by any OEM brand mentioned herein.



