Caterpillar 3306 Oil Cooler 7N0165 7S6394 | Heavy-Duty Diesel Engine Spare Parts

Product Details

Product Overview

This high-performance Oil Cooler (7N0165 / 7S6394) is a critical component designed specifically for the Caterpillar 3306 Diesel Engine. Manufactured to meet or exceed OEM specifications, this part ensures optimal engine temperature regulation, preventing overheating and extending the life of your heavy-duty equipment. We provide global shipping to major industrial markets, including North America, Europe, the Middle East, Southeast Asia, and Australia, ensuring fast and reliable delivery for your mining, construction, and agricultural operations.

Key Features & Benefits

• Superior Heat Dissipation: Engineered with high-density core fins and tubes for maximum cooling efficiency, even under extreme load conditions.
• OEM-Grade Durability: Constructed from corrosion-resistant materials to withstand high operating pressures and thermal stress, reducing the risk of leaks and failures.
• Direct Fit Replacement: Matches the exact dimensions and mounting points of the original Caterpillar part (7N0165 / 7S6394) for a seamless installation with no modifications required.
• Enhanced Engine Protection: Maintains stable oil temperatures, preventing thermal breakdown of lubricants and reducing engine wear.
• Rigorous Quality Testing: Every unit is pressure-tested and inspected to ensure zero defects and long-term reliability in harsh environments.

Technical Specifications

OEM Cross-Reference

This oil cooler is a direct replacement for the following OEM numbers:

• Caterpillar: 7N0165, 7S6394

Please verify your existing part number against the list above to ensure compatibility.

Compatibility

• Engine: Caterpillar 3306 (Naturally Aspirated and Turbocharged variants).
• Applications: Caterpillar D6D/D6H/D6R Track-Type Tractors, 966C/966D Wheel Loaders, 225/235 Excavators, and various generator sets and industrial engines.
• Year Range: 1970s – 1990s (general production years for the 3306 platform).

Global Supply & Distribution

We specialize in international B2B supply chains, offering fast and reliable shipping to major ports and industrial hubs worldwide. Our distribution network covers:

• North America: Los Angeles, Houston, Chicago, Toronto
• Europe: Rotterdam, Hamburg, Antwerp
• Asia-Pacific: Singapore, Shanghai, Dubai, Sydney
• Middle East & Africa: Jebel Ali, Dammam, Johannesburg

We provide comprehensive export documentation and customs clearance support to ensure a smooth transaction for our global partners.

Quality Assurance

• Manufacturing Standard: ISO 9001:2015 certified production facility.
• Testing: Each oil cooler undergoes a 100% pressure test and visual inspection for core blockages or fin damage before shipment.
• Warranty: 12-month warranty against manufacturing defects (excluding damage from improper installation or abuse).

FAQ

Q: Is this oil cooler a direct bolt-on replacement for the Caterpillar 7N0165?
A: Yes. This unit is manufactured to the exact OEM dimensions of the 7N0165 and 7S6394. It will bolt directly onto the engine block without requiring any adapters or modifications. Always ensure your engine is a 3306 series.

Q: What are the signs of a failing oil cooler on a 3306 engine?
A: Common symptoms include engine overheating, oil contamination (milky appearance due to coolant mixing), visible oil leaks from the cooler core, or a significant drop in oil pressure. If you notice any of these, inspect and replace the cooler immediately to prevent major engine damage.

Q: Can this oil cooler be used on a marine application of the 3306 engine?
A: While this cooler is designed for land-based industrial applications (construction, mining, gen-sets), it may be compatible with marine engines if the cooling system configuration is identical. However, we recommend consulting your engine’s manual or a marine diesel specialist to confirm compatibility with saltwater or raw water cooling systems.