The Multiquip AT85174 Oil Pressure Switch Engine Side is a genuine OEM component designed for the DCA85USJ2 ultra-silent diesel generator. As a factory-authorized replacement part, it is manufactured to the same specifications as the original, ensuring a correct, direct installation on the engine side of the lubrication monitoring circuit. This switch is confirmed for use on the DCA85USJ2 series, making it a straightforward, confidence-inspiring choice when sourcing your replacement.
Key Features
- Genuine OEM Electrical Specification: — Manufactured to the exact resistance and activation threshold of the original switch, ensuring the engine protection circuit reads and responds accurately.
- Engine-Side Direct Replacement: — Mounts directly to the engine-side port with the original hardware and connector, eliminating guesswork during installation.
- Confirmed Fitment for DCA85USJ2: — Verified for Multiquip DCA85USJ2 ultra-silent diesel generators, so you can order with confidence.
- Continuous Engine Protection: — A correctly functioning oil pressure switch monitors lubrication pressure in real time, triggering an automatic shutdown before low-pressure conditions cause internal engine damage.
- Critical Safety Circuit Component: — This switch is part of the generator's engine protection system; using a correctly rated OEM part ensures the shutdown response activates at the precise pressure threshold the engine requires.
The oil pressure switch monitors engine oil pressure during operation and signals the control system if pressure drops below a safe threshold. When pressure falls too low, the switch triggers an automatic engine shutdown, protecting critical internal components from damage caused by oil starvation. A faulty or worn oil pressure switch can either fail to warn of a genuine low-pressure condition — leaving the engine exposed to severe damage — or trigger nuisance shutdowns that interrupt generator output unnecessarily.
For fitment questions or parts support, contact the DHS Equipment team before ordering.
Part Details
| Part Number | AT85174 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Pressure Switch Engine Side |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA85USJ2 |
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.
