Description
Overview:
The Genuine JCB Isolator Key (OEM No. 335/D5644) is a robust replacement key for battery isolator/master switches used on selected JCB and Terex machinery. It disconnects battery power to help prevent unauthorised use and to allow safe maintenance. The key features a durable red moulded plastic body for easy handling and a metal contact tip for positive engagement with the switch. The pin measures 11mm x 4mm for a precise fit in compatible isolators. Commonly used on Terex dumpers such as TA3 and TA3S, and on JCB machines specified for this key. Being a genuine JCB part, it offers reliable fit and consistent performance in demanding site conditions.
Key Features:
- Genuine JCB part - OEM 335/D5644 for assured compatibility
- Durable red plastic body with metal contact tip for secure engagement
- Pin size 11mm x 4mm for accurate seating in the switch
- Isolates battery power to help deter unauthorised operation
- Quick, tool-free fitting and removal
- Bright colour for easy identification on site or in a toolbox
- Suitable for frequent daily use in construction and plant environments
- Widely used on selected JCB and Terex isolator switches, including TA3/TA3S
Typical Applications:
Used to isolate the battery during parking, storage, and servicing; for site security on dumpers and other plant; during electrical work and routine maintenance; and as a dependable spare for operators, hire fleets, and workshops to minimise downtime.
Also known as:
Cut-off key, kill switch key, battery disconnect key, master isolator switch key, battery cut-out key. Naming may vary by manufacturer and switch type, but function remains the same: engaging or disengaging the battery isolator.
Fits Models:
TA3, TA3S
Alternate Part Numbers:
8000-5017, 335 D5644, 335D5644, 80005017
Product Specifications
| L&S Part No. | 335/D5644 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JCB |
| OEM No. | 335 D5644 |
| Unit of Sale | 1 |
| Size | 11mm x 4mm pin |
| Applications | TA3, TA3S |
| Machine Type | Dumpers |
| Fits Models | TA3, TA3S |
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