The Multiquip 8972413670 is a genuine OEM Water Pump Pulley DCA-45USJ 4JG1 designed for the DCA-45USJ ultra-silent generator. As a direct OEM replacement sourced through Multiquip's authorized parts network, this pulley is manufactured to the exact specifications of the original component. It is confirmed to fit the DCA-45USJ, ensuring a straight swap with no guesswork on compatibility. DHS Equipment stocks this part to keep your generator cooling system operating as intended.
Key Features
- OEM-Spec Pulley Dimensions — Manufactured to the precise bore diameter, belt groove profile, and hub depth of the original, ensuring correct belt tension and alignment on the 4JG1 engine cooling circuit.
- Direct-Fit for DCA-45USJ — Engineered specifically for the DCA-45USJ ultra-silent generator; mounts to the water pump shaft using the original bolt pattern with no modification to the pump housing or drive belt routing.
- Correct Belt Engagement — Proper pulley sizing maintains the designed belt speed ratio between the crankshaft and water pump, keeping coolant flow within the operating range the 4JG1 engine requires.
- Protects Against Overheating — A worn or damaged pulley can cause belt slippage or wobble, reducing coolant circulation and risking thermal overload on a working generator; this replacement restores full cooling capacity.
- Genuine Multiquip OEM Part — Supplied as an authorized OEM component under part number 8972413670, matching the part originally installed at the factory on DCA-45USJ units.
The water pump pulley transfers rotational power from the engine's drive belt to the water pump, which circulates coolant through the engine block and radiator. On the DCA-45USJ, this pulley is a critical link in the 4JG1 engine's cooling circuit — if it cracks, corrodes, or loses its groove profile, the drive belt can slip or shed entirely, causing the water pump to stop circulating coolant. Left uncorrected, a failed pulley leads to rapid engine temperature rise and potential shutdown of the generator under load.
Part Details
| Part Number | 8972413670 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Water Pump Pulley DCA-45USJ 4JG1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| DCA-45USJ | DCA-45USJ |
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.
