The Multiquip 1718939010 Oil Switch is a genuine OEM component designed for the DCA-series ultra-silent diesel generators, including DCA125USJ, DCA45SSIU3, DCA70SSJU, DCA45SSIU3-60HZ, DCA45SSIU3-50HZ, and DCA70SSIU2-FEMA models. As a direct Multiquip OEM part, it is manufactured to the exact specification of the original, ensuring proper signaling behavior within the engine oil pressure circuit. This switch is the correct replacement for any DCA-series generator showing a low-oil fault, an unresponsive oil pressure warning, or a unit that shuts down unexpectedly under load. Sourcing part number 1718939010 from an authorized dealer like DHS Equipment means you receive an authentic component backed by Multiquip's parts program.
Key Features
- OEM-Calibrated Pressure Threshold — Engineered to trip at the correct oil pressure setpoint for DCA-series diesel generators, preventing false shutdowns and missed low-oil events.
- Drop-In Electrical Connection — Matches the original connector and thread spec, allowing straightforward installation without wire splicing or adapter fittings.
- Broad DCA-Series Compatibility — Confirmed fitment across DCA125USJ, DCA45SSIU3, DCA45SSIU3-50HZ, DCA45SSIU3-60HZ, DCA70SSJU, and DCA70SSIU2-FEMA generator models.
- Protects Engine from Oil Starvation Damage — A correctly functioning oil switch triggers an immediate shutdown before low oil pressure can cause costly internal engine wear or failure.
- Critical Safety Circuit Component — This switch is part of the generator's engine protection system; using a correctly rated OEM switch ensures the safety shutdown circuit operates as designed.
The oil switch monitors engine oil pressure during operation and sends a signal to the generator's control system when pressure drops below a safe operating threshold. When pressure falls too low, the switch triggers an automatic shutdown to protect the engine from damage caused by inadequate lubrication. A failed or out-of-spec oil switch can either allow the engine to run unprotected during a low-oil event or cause nuisance shutdowns that interrupt power delivery — either outcome represents a significant risk to the generator and the load it supports.
Part Details
| Part Number | 1718939010 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Switch |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA125USJ |
| Diesel Powered Generators | DCA45SSIU3 |
| Diesel Powered Generators | DCA70SSJU |
| Diesel Powered Generators | DCA45SSIU3-60HZ |
| Diesel Powered Generators | DCA45SSIU3-50HZ |
| Diesel Powered Generators | DCA70SSIU2-FEMA |
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.
