The Multiquip 1641551150 Injection Pump Gear is a genuine OEM component designed for the DAW-500S diesel arc welder. As a direct OEM replacement, it is manufactured to the same specifications as the original part, ensuring proper mesh, timing alignment, and load transfer within the fuel injection drive system. This gear is confirmed for DAW-500S applications, making it a straightforward service part when replacing worn or damaged injection drive components on that machine.
Key Features
- Genuine OEM Gear Geometry — Tooth profile and pitch are held to original specifications, ensuring correct mesh with mating gears in the injection drive train and preventing timing slip.
- Direct-Drive Replacement — Mounts in the same position as the factory gear with no alteration to the injection pump mounting or drive arrangement.
- DAW-500S Fitment Confirmed — Sourced directly from Multiquip and verified for the DAW-500S diesel arc welder platform.
- Injection Timing Integrity — A correctly fitted injection pump gear keeps fuel delivery precisely synchronized with the engine's combustion cycle, maintaining power output and fuel efficiency under welding load.
- Fuel System Safety — A worn or skipped injection pump gear can cause hard starting, erratic fuel delivery, or uncontrolled engine behavior; replacing with the correct OEM part restores safe, predictable operation.
The injection pump gear is a critical link between the engine's crankshaft timing system and the diesel fuel injection pump. It transfers rotational drive to the injection pump at a precisely timed ratio, controlling exactly when fuel is delivered to each cylinder relative to piston position. When this gear wears, cracks, or loses tooth integrity, injection timing shifts — leading to hard starting, loss of power, excessive smoke, and potential engine damage. Replacing it with the correct OEM gear restores proper timing and protects the injection pump from drive-side shock loading.
For fitment questions or help confirming this part is right for your DAW-500S, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 1641551150 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Injection Pump Gear |
Compatibility & Fitment
| Name | Model |
|---|---|
| Welders | DAW-500S |
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.
