Ignition Switch for Caterpillar CAT 320D2 WIRED Excavator | Also Fits CAT424, HM2021 ( 4 PIN), 120G
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | GCO Code | Part Type | Availability |
|---|---|---|---|---|---|
| Caterpillar (CAT) | CAT 320D2 WIRED/CAT424/HM2021 ( 4 PIN) / 120G | 1428858 / 1107887 / 4678535 / 3694095 / 2552752 | A30.4C | IGNITION SWITCH | ✓ In Stock |
Product Description
OEM Part Numbers: 1428858 / 1107887 / 4678535 / 3694095 / 2552752
Machine Compatibility
| Machine Model | Type | Part Number |
|---|---|---|
| CAT 320D2 WIRED | Hydraulic Excavator | 1428858 |
| CAT424 | Hydraulic Excavator | 1107887 |
| HM2021 ( 4 PIN) | 4678535 | |
| 120G | 3694095 |
This is a quality aftermarket replacement for CAT 320D2 WIRED — same fitment and performance as OEM at a better price point. Need the genuine factory-certified part? View OEM listing →
The 1428858 ignition switch cat 320d2 wired/cat424/hm2021 ( 4 pin) / 120g manages electrical power switching across critical machine circuits on the CAT 320D2 WIRED/CAT424/HM2021 ( 4 PIN) / 120G, providing reliable control of high-current systems through precise switching action. When a relay or switch fails, the electrical system it controls becomes non-functional — leading to operational restrictions and the need for immediate replacement. Built to OEM specification 1428858 for direct fitment on the CAT 320D2 WIRED/CAT424/HM2021 ( 4 PIN) / 120G with correct current ratings and connector compatibility.
Key Features:
- Accurate Power Control: Delivers precise electrical switching to ensure correct operation of the circuits it controls.
- Direct OEM Replacement: Built to specification 1428858 for plug-in replacement on the CAT 320D2 WIRED/CAT424/HM2021 ( 4 PIN) / 120G.
- Industrial Grade Construction: Designed for long-term reliability under the electrical and environmental demands of heavy machinery.
The 1428858 ignition switch cat 320d2 wired/cat424/hm2021 ( 4 pin) / 120g is an essential electrical component for maintaining correct power control across machine circuits on the CAT 320D2 WIRED/CAT424/HM2021 ( 4 PIN) / 120G.
What Does This Ignition Switch Do?
The key-operated ignition switch controls the machine's main electrical power circuits, activating the instrument panel, fuel system, and glow plugs in the pre-heat position, and engaging the starter motor in the start position. Acts as the primary operator-controlled power distribution point for the electrical system.
Possible Ignition Switch Problem Symptoms
If your machine is showing any of the following, a faulty ignition switch may be the cause:
- Machine not powering up or showing no instrument panel activity when the key is turned
- Starter motor not engaging in the start position despite a charged battery
- Machine losing electrical power intermittently during operation as the switch contact fails
- Key turning freely with no resistance, indicating internal switch mechanism failure
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.
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