Caterpillar C1.7/C1.8/C2.4 Water Pump 383-0433
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Caterpillar 303.5E mini excavator
- Caterpillar 304E mini excavator
- Caterpillar 304E2 mini excavator
- Caterpillar 305E mini excavator
- Caterpillar 305E2 mini excavator
- Caterpillar 305.5E mini excavator
- Caterpillar 901C compact wheel loader
- Caterpillar 901C2 compact wheel loader
- Caterpillar 902C compact wheel loader
- Caterpillar 903C compact wheel loader
- Caterpillar C1.7 engine applications using 383-0433
- Caterpillar C1.8 engine applications using 383-0433
- Caterpillar C2.4 engine applications using 383-0433
Product Overview
Coolant at the pump housing, bearing noise, shaft play, or repeated overheating after the rest of the system is checked can point to a failing water pump. This replacement restores coolant circulation on the listed CAT engine and machine applications.
Overheating can also come from a blocked radiator, bad thermostat, slipping belt, air pocket, damaged fan, or head-gasket problem. Diagnose the system before fitting parts.
Key Features & Performance
- Engine-driven coolant water pump
- For CAT C1.7, C1.8, and C2.4 applications
- Restores coolant circulation
- Aftermarket replacement for 383-0433
Replaces Part Numbers
- 383-0433
- 3830433
Common Uses
- Coolant leak from the pump
- Bearing noise or shaft play
- Overheating from poor coolant circulation
- Cooling-system rebuild on high-hour equipment
Technical Specifications
- Product Type: Engine water pump
- Engine Families: CAT C1.7, C1.8, C2.4
- System: Liquid cooling
- Replacement Type: Aftermarket
Installation & Fitment
- Allow the engine to cool and drain coolant safely
- Flush contamination and inspect belt, fan, and thermostat
- Use the correct gasket or seal and clean mating surfaces
- Refill, bleed air, and inspect for leaks under load
Compatibility Notice
Machine model alone is not enough. Match engine serial number, original 383-0433 casting, pulley and flange dimensions, ports, mounting holes, and gasket shape.
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Frequently Asked Questions
Q: Can a bad pump cause overheating without leaking? A: Yes. A damaged impeller or slipping drive can reduce circulation.
Q: Is a gasket included? A: It is not claimed here; verify the pictured package and obtain the correct seal if needed.
Q: Does it fit every 304E? A: Confirm the installed engine and serial range because production changes occur.
Q: What else should be checked? A: Radiator airflow, coolant quality, thermostat, belt, fan, hoses, cap, and combustion leaks.
Part Summary
keywords: Caterpillar 383-0433 water pump, CAT C1.8 coolant pump, 303.5E water pump replacement, 304E2 engine cooling part, 901C loader water pump, aftermarket CAT 3830433
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.