CAT 3507075 (350-7075) Fan Motor | Fits 966 950L 972 980 982 Wheel Loader

CAT 3507075 (350-7075) Fan Motor | Fits 966 950L 972 980 982 Wheel Loader

Premium engine fan motor designed as a direct OEM-compatible replacement for Caterpillar 966, 950L, 972, 980, and 982 wheel loaders. Built to deliver reliable engine cooling performance and long service life in demanding mining, quarry, and heavy material handling applications.

Product Highlights

• Part Number: 3507075 / 350-7075
• 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 mining, quarry, and material handling projects

Technical Specifications

• Part Number: 3507075 / 350-7075
• Product Type: Engine Fan Motor
• Brand Compatibility: Caterpillar (CAT)
• Application: Engine Cooling System
• Warranty: 12 Months

Compatible Models

This fan motor fits the following Caterpillar wheel loaders:

• Caterpillar 966 Wheel Loader
• Caterpillar 950L Wheel Loader
• Caterpillar 972 Wheel Loader
• Caterpillar 980 Wheel Loader
• Caterpillar 982 Wheel Loader

Applications

• Engine Cooling Fan Drive
• Radiator Cooling System
• Hydraulic Oil Cooling
• Mining, Quarry, and Material Handling Projects

Why Choose This Motor?

• 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 engine fan motor on CAT 966, 950L, 972, 980, or 982 wheel loaders?
A: Common signs include engine overheating during normal operation, the cooling fan not spinning or spinning slowly, hydraulic-driven fan failing to respond to temperature changes, unusual noise (grinding or whining) from the fan motor area, and visible hydraulic oil leakage around the fan motor. The CAT 966-982 series wheel loaders are widely used in mining, quarry, and heavy material handling — overheating in these environments can lead to catastrophic engine failure and costly downtime.

Q: Does the 3507075 fit all five wheel loader models?
A: Yes, the 3507075 (350-7075) is designed as a direct OEM-compatible replacement for the CAT 966, 950L, 972, 980, and 982 wheel loaders. These models share the same fan motor mounting and hydraulic drive architecture. Contact us with your wheel loader serial number to confirm exact compatibility.

Q: What does the fan motor do on these CAT wheel loaders?
A: The fan motor is a hydraulic-driven motor that spins the engine cooling fan. It is controlled by the engine cooling system — as coolant temperature rises, hydraulic flow to the fan motor increases, speeding up the fan to dissipate heat. A failing fan motor causes inadequate cooling, leading to engine overheating, especially in hot weather or under heavy material handling load (mining, quarry, heavy construction).

Q: Should I check the hydraulic system when replacing this fan motor on a CAT wheel loader?
A: Yes. Before installing the new fan motor, inspect the hydraulic lines, fittings, and cooling system for contamination, blockages, or damaged O-rings. Flushing the hydraulic circuit and replacing the hydraulic filter is strongly recommended to prevent contaminant-driven failure of the new motor. In mining, quarry, and material handling environments, contamination is a leading cause of premature fan motor failure.

Q: What type of hydraulic oil is recommended for the fan motor circuit?
A: Caterpillar specifies Cat HYDO Advanced 10W or 30W hydraulic oil for the fan motor hydraulic circuit. Using non-CAT approved hydraulic fluids can cause accelerated wear, seal failure, and void the warranty. In high-dust environments (mining, quarry, material handling), more frequent hydraulic oil and filter changes are recommended.

Q: How do I confirm this is the correct fan motor for my CAT wheel loader?
A: Check the part number on your current fan motor — if it reads 3507075 or 350-7075, this is the correct replacement. If the label is worn or missing, provide your wheel loader serial number and we will verify compatibility before you order.

Q: Does this fan motor come with mounting hardware or gaskets included?
A: The fan motor is supplied as a complete unit. Depending on your wheel loader configuration, you may need separate mounting bolts, hydraulic fittings, gaskets, or O-rings. Contact us with your serial number and we will confirm exactly what is included and what additional parts you may need for installation.

Q: What is the warranty on this engine fan motor?
A: This fan motor comes with a 12-month warranty covering manufacturing defects. The warranty does not cover damage caused by contaminated hydraulic oil, improper installation, failure to flush the hydraulic system, or using non-CAT approved hydraulic fluids.

Looking for this fan motor? Contact us today for pricing, availability, and lead time information.

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