The Multiquip 5156430020 is a genuine OEM Delivery Valve Spring designed for the DCA25SSI, DCA25SSI2, DCA25SSIU, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generator series. As a direct OEM replacement, this spring is sourced to the same specifications as the original component installed at the factory, ensuring correct tension and seating characteristics within the fuel injection system. Verified fitment across the DCA25SS generator family means this is the right part for the job — no guesswork required. DHS Equipment stocks genuine Multiquip OEM parts so you can get your generator back online with confidence.
Key Features
- Genuine OEM Spring Tension: — Manufactured to the exact load and free-length specifications of the original, maintaining proper valve seating pressure in the injection system.
- Direct-Fit Replacement: — Engineered to drop into the delivery valve assembly without modification, matching the original installation interface precisely.
- Confirmed Fitment: — Compatible with DCA25SSI, DCA25SSI2, DCA25SSIU, DCA25SSAI, and DCA25SSIU-GEER ultra-silent diesel generators.
- Injection Consistency: — A correctly tensioned delivery valve spring maintains precise fuel metering with each injection event, supporting stable power output and smooth generator operation.
- Fuel System Integrity: — A worn or fatigued spring can allow pressure bleed-back and erratic injection timing; replacing it with a genuine OEM part restores proper system pressure and prevents hard-start conditions.
The delivery valve spring is a small but critical component within the fuel injection pump. It applies the return force needed to reseat the delivery valve after each injection cycle, preventing fuel from flowing back into the pump and maintaining residual line pressure. When this spring fatigues or loses tension, injection timing becomes inconsistent, leading to rough running, increased fuel consumption, or difficulty starting — symptoms that can easily be mistaken for larger fuel system problems.
For help confirming this is the correct part for your machine, contact the DHS Equipment parts team.
Part Details
| Part Number | 5156430020 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Delivery Valve Spring |
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.
