The Genie 75178GT is a genuine OEM Cummins B3.9 Water Pump built for Genie S-series telescopic boom lifts. Sourced directly through Genie, this water pump is the correct OEM replacement for the S-100, S-105, S-120, and S-125 — ensuring a direct, hassle-free installation. When your machine's cooling system demands the right part, this genuine component delivers the fit and function your engine requires.
Key Features
- Genuine OEM Cooling Performance — Built to the exact specification of the original Cummins B3.9 water pump, maintaining proper coolant circulation and engine temperature management.
- Engine-Specific Fit — Engineered specifically for the Cummins B3.9 engine, this water pump connects and seals the way the original did — no adaptation or rework needed.
- Confirmed Fitment — Verified for Genie S-100, S-105, S-120, and S-125 telescopic boom lifts. Cross-reference part number 75178GT against your machine's parts manual before ordering to confirm compatibility with your unit.
- Protects Engine Integrity — A functioning water pump keeps coolant moving through the engine continuously. A worn or leaking pump leads to overheating, which can cause serious engine damage and unplanned downtime.
- OEM Sourcing You Can Trust — As a genuine Genie part, the part meets the original build standard — not a general-market approximation — so you know what you're getting before the part goes on the machine.
The water pump is responsible for circulating coolant through the engine to regulate operating temperature. On the Cummins B3.9 engine found in these Genie S-series telescopic boom lifts, the pump runs continuously during operation, and a failed or leaking pump will cause coolant loss and rapid overheating. Replacing a worn pump promptly with the correct OEM part — the Genie 75178GT — keeps the engine protected and the machine operational.
Part Details
| Part Number | 75178GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Cummins B3.9 Water Pump |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-120 | S-120 |
| S-125 | S-125 |
| S-100 | S-100 |
| S-105 | S-105 |
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.
