The Multiquip AR51481 Starter Switch Key is a genuine OEM component designed for DCA-series ultra-silent diesel generator models including DCA70SSJU, DCA70SSJU2, DCA70SSIU2-FEMA, DCA100SSJU, DCA125SSJU, DCA125SSJU2, DCA150SSJU, and DCA150SSJU2. This is a direct OEM replacement sourced from Multiquip, covering units with serial numbers through. Keeping the correct key on hand ensures your generator starts and shuts down as intended, with no guesswork about fitment. DHS Equipment stocks this part so you can get your machine back in service without delay.
Key Features
- Genuine OEM Part: — Manufactured to Multiquip's exact specifications, ensuring correct key profile and switch engagement for DCA-series generators.
- Serial Number Specific: — Verified for units with serial numbers 7300001 to 73002140 — confirm your serial range before ordering to ensure correct application.
- Broad DCA-Series Compatibility: — Fits DCA70SSJU, DCA70SSJU2, DCA70SSIU2-FEMA, DCA100SSJU, DCA125SSJU, DCA125SSJU2, DCA150SSJU, and DCA150SSJU2 ultra-silent generators.
- Drop-In Replacement: — Matches the original key profile and ignition switch interface, allowing straightforward installation without modification to the switch assembly.
- Operational Security: — A correctly keyed starter switch ensures the generator can only be started and stopped by authorized personnel, supporting site security and safe operating practice.
The starter switch key is the operator's primary interface for powering a generator on and off. It actuates the ignition switch through a keyed cylinder, which controls the electrical circuit that starts and stops the engine. A worn, broken, or missing key can prevent startup entirely or, in some cases, compromise the ability to shut the generator down safely — making it a critical small component that should always be on hand as a spare.
Part Details
| Part Number | AR51481 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Starter Switch Key |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA125SSJU |
| Diesel Powered Generators | DCA125SSJU2 |
| Diesel Powered Generators | DCA70SSJU |
| Diesel Powered Generators | DCA150SSJU |
| Diesel Powered Generators | DCA150SSJU2 |
| Diesel Powered Generators | DCA70SSIU2-FEMA |
| Diesel Powered Generators | DCA70SSJU2 |
| Diesel Powered Generators | DCA100SSJU |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
