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CAT 352-2125 (3522125) Water Pump for C9 Engine | Fits 330D 336D 340D 973D

CAT 352-2125 (3522125) Water Pump for C9 Engine | Fits 330D 336D 340D 973D

Premium engine water pump designed specifically for Caterpillar (CAT) C9 diesel engines, delivering efficient coolant circulation and high-performance thermal regulation. Built to handle heavy-duty operational cycles, this aftermarket replacement water pump ensures optimal cooling flow to protect high-horsepower machinery from overheating in demanding construction, forestry, mining, and earthmoving environments.

Product Highlights

  • Part Number: 3522125 / 352-2125
  • Engine Compatibility: Engineered as a direct drop-in replacement for the reliable Caterpillar C9 heavy-duty industrial diesel engine.
  • Heavy-Duty Construction: Manufactured with top-tier anti-corrosive cast iron housing and precision-balanced impellers to resist cavitation, erosion, and continuous thermal stress.
  • Advanced Cooling Seal Group: Equipped with premium alloy seals and robust bearing sets to eliminate coolant leakage and ensure stable pressure throughout the entire cooling system.

Technical Specifications

Parameter Specification
Part Number 352-2125 / 3522125
Product Type Heavy-Duty Engine Water Pump
Primary Engine Fit Caterpillar (CAT) C9 Industrial Engine
Material Housing High-Strength Precision Cast Materials & Alloy Unitized Seals
Application Range CAT Hydraulic Excavators, Track Loaders, and Forestry Equipment
Warranty 12 Months Warranty

Compatible Models & Equipment

This premium 352-2125 water pump fits a wide selection of Caterpillar heavy-duty equipment powered by the CAT C9 diesel engine series:

  • Caterpillar Hydraulic Excavators: 330C / 330C L / 330C LN / 330D / 330D L / 330D LN / 336D / 336D L / 336D LN / 336D2 / 336D2 L / 336D2 GC / 336D2 XE / 340D L / 340D2 L
  • Caterpillar Forestry Equipment & Feller Bunchers: 521 / 521B / 522 / 522B / 541 / 541 2 / 551 / 552 / 552 2 / 2290 / 2390 / 2391 / 2491 / 2590 / TK711 / TK721 / TK722 / TK732 / TK741 / TK751 / TK752
  • Caterpillar Loaders & Material Handlers: 973D Track Loader / 330C MH / 330D MH / M330D / 330C FM / 330D FM

Key Applications

  • C9 Engine Thermal Management: Restores factory-standard coolant flow rates to regulate cylinder block temperatures and preserve stable engine performance under heavy torque.
  • Heavy Earthmoving & Forestry Fleet Maintenance: Engineered to provide reliable operations for high-tonnage excavators and log loaders operating in harsh environment duty cycles.
  • Cooling System Overhaul: Ideal replacement part for curing common weeping issues or bearing noises from aging original factory pumps.

Why Choose Our Aftermarket CAT Pumps?

  • Guaranteed OEM Quality: Manufactured under strict ISO 9001 quality standards to match or exceed original equipment performance and durability.
  • Cost-Effective Solution: Achieve premium dealer-level reliability and identical performance at a fraction of the OEM replacement price.
  • Ready to Ship: Kept in stock for immediate worldwide dispatch to reduce your machine's idle downtime significantly.
  • Industry-Leading Support: Backed by a full 1-year warranty and a team of professional heavy machinery hydraulic technical experts.

Frequently Asked Questions (FAQ)

Q: Does this water pump include the installation gasket kit for the C9 engine?

A: Yes, our premium aftermarket 352-2125 water pump comes complete with high-quality installation gaskets and O-rings to ensure a seamless, leak-free seal upon installation.

Q: Will this pump fit both CAT 330D and 336D series excavators?

A: Absolutely. As long as your heavy equipment model is equipped with the specified Caterpillar C9 engine configuration, this pump serves as a direct drop-in replacement part.

Q: What quality checks do your water pumps undergo?

A: Each pump is precision-machined and undergoes rigorous pressure and spin testing to ensure zero housing porosity and flawless seal performance before worldwide shipment.

Q: How long does international shipping take?

A: In-stock orders are typically dispatched within 3–5 business days. We offer expedited shipping and global air freight options for emergency machine breakdown situations.


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