The Multiquip 5117500021 Oil Filler Cap is a genuine OEM component designed for DCA25SSI, DCA25SSIU, DCA25SSI2, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generators. As a direct OEM replacement, it is manufactured to the exact specifications of the original part, ensuring a proper seal and correct fit on the engine oil fill port. Sourced directly through authorized Multiquip supply channels, this cap is the correct choice when servicing any of the compatible DCA-series machines listed above.
Key Features
- OEM-Grade Sealing Performance — Engineered to the original cap specification, maintaining an airtight seal on the oil fill port to prevent contamination and leakage during generator operation.
- Drop-In Installation — Threaded to match the original oil fill opening on DCA-series engines, requiring only hand-tightening to seat correctly — no adapters or modifications needed.
- Broad DCA25 Series Fitment — Compatible with DCA25SSI, DCA25SSIU, DCA25SSI2, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generator models.
- Protects Engine Oil Integrity — A properly sealed filler cap keeps moisture, dust, and debris out of the crankcase, helping maintain oil quality between service intervals on continuous-duty generator applications.
- Fuel and Fluid System Safety — A cracked or missing oil filler cap on a running generator can allow oil mist to escape the crankcase, creating a fire hazard and potential oil-level drop — replacing it promptly is a critical safety step.
The oil filler cap seals the engine's oil fill port, keeping the lubrication system closed and pressurized correctly during operation. When the cap is damaged, missing, or no longer sealing properly, it allows engine oil vapor to escape and exposes the crankcase to airborne contaminants — either of which can lead to accelerated engine wear or oil starvation. On a diesel generator running in demanding continuous-duty or standby roles, maintaining a secure, correctly fitting cap is a basic but essential part of routine engine care.
For questions about fitment or to confirm compatibility with your specific unit, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 5117500021 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Oil Filler Cap |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diesel Powered Generators | DCA25SSIU |
| Diesel Powered Generators | DCA25SSI |
| Diesel Powered Generators | DCA25SSI2 |
| Diesel Powered Generators | DCA25SSAI |
| Diesel Powered Generators | DCA25SSIU-GEER |
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.
