CAT 4W7589 (4W-7589) Water Pump | Fits 205B 3114 320 L 322 325 35 446 45 525B
CAT 4W7589 (4W-7589) Water Pump | Fits 205B 3114 320 L 322 325 35 446 45 525B
CAT 4W7589 (4W-7589) Water Pump | Fits 205B 3114 320 L 322 325 35 446 45 525B
Premium water pump designed as a direct OEM-compatible replacement for Caterpillar 205B, 3114, 320 L, 322, 325, 35, 446, 45, and 525B equipment. Built to deliver reliable engine cooling performance and long service life in demanding construction, earthmoving, and site development applications.
Product Highlights
- Part Number: 4W7589 / 4W-7589
- Direct Fit: No modifications required
- High Performance: Meets or exceeds original Caterpillar specifications
- Durable Construction: Precision-engineered for long service life
- Wide Application: Suitable for construction, earthmoving, and site development projects
Technical Specifications
- Part Number: 4W7589 / 4W-7589
- Product Type: Engine Water Pump
- Brand Compatibility: Caterpillar (CAT)
- Application: Engine Cooling System
- Warranty: 12 Months
Compatible Models
This water pump fits the following Caterpillar equipment:
- Caterpillar 205B
- Caterpillar 3114
- Caterpillar 320 L
- Caterpillar 322
- Caterpillar 325
- Caterpillar 35
- Caterpillar 446
- Caterpillar 45
- Caterpillar 525B
Applications
- Engine Cooling System
- Radiator Cooling Fan Drive
- Engine Temperature Regulation
- Construction, Earthmoving, and Site Development Applications
Why Choose This Pump?
- Quality Guaranteed - Manufactured to meet OEM standards
- Ready to Ship - In stock and available for immediate dispatch
- Expert Support - Technical assistance available
- Competitive Pricing - Cost-effective alternative to dealer parts
Frequently Asked Questions
Q: What are the symptoms of a failing water pump on CAT 205B, 3114, 320 L, 322, 325, 35, 446, 45, or 525B equipment?
A: Common symptoms include engine overheating (temperature gauge rising above normal), coolant leakage from the water pump weep hole or gasket surface, visible coolant loss without visible external leaks, whining noise from the front of the engine, and steam or coolant vapor from the radiator area. If your CAT equipment is overheating, check the water pump immediately.
Q: Which CAT equipment models does the 4W7589 water pump fit?
A: The 4W7589 (4W-7589) water pump fits a wide range of Caterpillar equipment: 205B, 3114, 320 L, 322, 325, 35, 446, 45, and 525B. These include excavators, wheel loaders, skid steers, and other CAT machinery equipped with compatible engines. Contact us with your equipment serial number if you need confirmation.
Q: Is the 4W7589 water pump belt-driven or gear-driven?
A: The drive type depends on your specific CAT engine and equipment model. Some 4W7589 applications are belt-driven (with a pulley), others are gear-driven directly from the timing gear train. Check your current water pump — if it has a pulley, it is belt-driven; if it has a gear housing, it is gear-driven.
Q: Should I replace the thermostat and radiator hoses when replacing the water pump?
A: It is strongly recommended. A failing water pump often overheats the engine, which can damage the thermostat and radiator hoses. Replacing these components at the same time prevents a second overheating event caused by a stuck thermostat or collapsed hose. Also use new gaskets and fresh coolant when installing.
Q: What type of coolant should I use with this water pump?
A: Caterpillar recommends using CAT ELC (Extended Life Coolant) or a fully formulated heavy-duty diesel engine coolant meeting CAT specification. Do not use standard automotive antifreeze — it lacks the necessary additives for heavy-duty CAT diesel engines and can cause cavitation damage to the water pump and cylinder liners.
Q: Can I install this water pump myself?
A: Installation requires mechanical skills, hand tools, and proper coolant handling. You will need to drain the coolant, remove the old water pump, clean the mounting surface, install the new pump with a new gasket, and refill with fresh coolant while bleeding air from the system. If you are not confident, have a qualified technician perform the installation.
Q: How do I confirm this is the correct water pump for my CAT equipment?
A: Check the part number on your current water pump — if it reads 4W7589 or 4W-7589, this is the correct replacement. If the label is unreadable, provide us with your CAT equipment model and serial number, and we will verify compatibility before you order.
Q: What is the warranty on this water pump?
A: This water pump comes with a 12-month warranty covering manufacturing defects. The warranty does not cover damage caused by using incorrect coolant, improper installation, or failure to use a new gasket during installation.
Looking for this water pump? Contact us today for pricing, availability, and lead time information.
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