The Multiquip 03784400 Air Ducting 2G40 Hatz is a genuine OEM component designed for RW1404 and RW1504HF series RAMMAX walk-behind rollers. Sourced directly from Multiquip, this part meets the original design specifications for the Hatz 2G40 engine cooling system fitted to these machines. It is confirmed compatible with the RW1404, RW1404MR (S/N 326075 and up), and RW1504HF (up to S/N ) models. Ordering by the exact part number 03784400 ensures you receive the correct ducting assembly for your specific serial number range.
Key Features
- Genuine OEM Construction — Manufactured to the original Hatz 2G40 engine ducting specification, ensuring correct airflow geometry and material grade for sustained thermal performance.
- Exact-Fit Replacement — Engineered to seat and connect identically to the original, allowing straightforward installation without modification to surrounding engine components.
- Confirmed Fitment — Verified for RW1404, RW1404MR (S/N 326075 and up), and RW1504HF (up to S/N 1534188) RAMMAX walk-behind rollers.
- Cooling System Integrity — Proper air ducting channels airflow precisely over the Hatz 2G40 engine; damaged or missing ducting leads to overheating and unplanned shutdowns during compaction passes.
- Serial Number Specific — Fitment ranges are defined by machine serial number, so confirming your S/N before ordering is essential — part number 03784400 covers the validated serial ranges listed above.
Air ducting on a Hatz 2G40 engine directs cooling air from the recoil or electric start fan assembly across the cylinder and engine block, preventing heat buildup during continuous operation. On a walk-behind roller working compaction passes, consistent engine temperature is critical — without correctly routed ducting, hot spots develop quickly, causing the engine to run rough, lose power, or shut down on thermal protection. A worn, cracked, or missing duct breaks the intended airflow path and accelerates engine wear, making timely replacement with the correct OEM part essential to keeping the roller productive.
DHS Equipment supplies genuine Multiquip OEM parts with fitment accuracy you can count on. If you need help confirming compatibility for your serial number range, contact our parts team before placing your order.
Part Details
| Part Number | 03784400 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Air Ducting 2G40 Hatz |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | RW1404MR S/N 326075 and up |
| Rollers | RW1504HF up to S/N 1534188 |
| Rollers | RW1404 |
| Rollers | RW1404MR |
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.
