Multiquip 50355500 Injector Assembly

The Multiquip 50355500 Injector Assembly is a genuine OEM component designed for RW1404, RW1404MR, and RW1504HF series RAMMAX walk-behind rollers. As a direct Multiquip OEM part, it meets the original engineering specifications for these machines, ensuring consistent fuel delivery and dependable combustion performance. This assembly is confirmed for RW1404MR units at S/N 326075 and up, RW1504HF units up to S/N, as well as standard RW1404 and RW1404MR models — verify your serial number before ordering to confirm fitment. Sourced directly through DHS Equipment, the Multiquip 50355500 is stocked as an authorized OEM replacement for operators who need to restore their roller to full working condition.

Key Features

• Genuine OEM Fuel Delivery Accuracy — Built to Multiquip's original injector specifications, ensuring the correct fuel atomization pattern and injection timing for these diesel-powered roller engines.
• Serial-Number-Specific Fitment — Confirmed for RW1404MR (S/N 326075 and up), RW1504HF (up to S/N 1534188), RW1404, and RW1404MR — verify your serial number to ensure correct application.
• Direct Assembly Replacement — Supplied as a complete injector assembly, allowing a straightforward swap into the existing injector port without sourcing individual sub-components.
• Protects Engine Combustion Integrity — A correctly functioning injector maintains proper air-fuel ratio in the diesel engine, directly supporting compaction force output and smooth roller operation under load.
• Fuel System Safety — A worn or leaking injector assembly can cause uncontrolled fuel delivery, hard starting, or exhaust irregularities; replacing with an OEM-spec unit restores safe, controlled engine operation.

The injector assembly is responsible for delivering a precisely metered and atomized spray of diesel fuel into the engine's combustion chamber at the correct moment in the firing cycle. In the RAMMAX roller engines these units serve, the injector must maintain consistent pressure and spray pattern to sustain clean combustion across varying load conditions. When an injector wears, becomes clogged, or fails to seal correctly, the engine may exhibit hard starting, rough running, increased fuel consumption, or black exhaust smoke — all of which reduce roller productivity and can accelerate wear on related engine components.

For assistance confirming fitment or placing your order, contact the DHS Equipment team directly.

Part Details

Compatibility & Fitment

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.