The Multiquip 504737 Key Fitting 7X8X45 is a genuine OEM component designed for the QP3TZ trash pump. As an authentic Multiquip part, the 504737 is manufactured to the exact dimensions and tolerances required for proper installation and function. This part is a direct OEM replacement, ensuring correct alignment and engagement within the drivetrain assembly. Verified fitment for QP3TZ series trash pumps makes this the straightforward choice when sourcing a replacement.
Key Features
- Exact OEM Dimensions — Manufactured to the precise 7x8x45 specification, ensuring correct engagement with mating components without any guesswork.
- Genuine Multiquip Part — Sourced directly from Multiquip, this is an authentic OEM component held to the same standards as the original production part.
- Direct Replacement for QP3TZ — Confirmed fitment for the QP3TZ trash pump; drops into the existing keyway without rework or machining.
- Drivetrain Integrity — A correctly sized key fitting locks rotating components in precise angular alignment, preventing slippage under load and protecting the pump shaft and impeller.
- Low-Cost Preventive Fix — Replacing a worn or sheared key fitting before failure occurs protects far more expensive components like the shaft, impeller, and pump housing.
A key fitting is a small but critical drivetrain component that locks a rotating shaft to a hub, pulley, or impeller by seating into matching keyways cut into both parts. When the key fitting is in place, torque transfers cleanly from the engine through the shaft to the pump impeller. If the key fitting shears, wears down, or goes missing, the shaft spins freely inside the hub — the pump loses drive, output drops to zero, and continued operation can damage the shaft or keyway beyond simple repair. Keeping a correctly sized key fitting like the Multiquip 504737 in service is one of the simplest ways to maintain full pump performance on the QP3TZ.
For questions about fitment or to confirm this is the right part for your machine, contact the DHS Equipment team directly.
Part Details
| Part Number | 504737 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Key Fitting 7X8X45 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Trash Pumps | QP3TZ |
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.
