CAT 824H, 825H, 980G II, 980H, 980G, 826H Gear Pump | Part No. 2356501 (235-6501)

CAT 2356501 (235-6501) Gear Pump | Fits 824H 825H 826H 980G 980G II 980H

Premium hydraulic gear pump designed as a direct OEM-compatible replacement for Caterpillar 824H wheel dozer, 825H soil compactor, 826H landfill compactor, and 980G, 980G II, 980H wheel loaders. Built to deliver reliable hydraulic flow and long service life in demanding earthmoving, waste handling, and construction applications.

Product Highlights

• Part Number: 2356501 / 235-6501
• 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 earthmoving, waste handling, and construction projects

Technical Specifications

• Part Number: 2356501 / 235-6501
• Product Type: Hydraulic Gear Pump
• Brand Compatibility: Caterpillar (CAT)
• Application: Hydraulic System
• Warranty: 12 Months

Compatible Models

This gear pump fits the following Caterpillar equipment models:

• Caterpillar 824H Wheel Dozer
• Caterpillar 825H Soil Compactor
• Caterpillar 826H Landfill Compactor
• Caterpillar 980G Wheel Loader
• Caterpillar 980G II Wheel Loader
• Caterpillar 980H Wheel Loader

Applications

• Hydraulic Gear Pump Replacement
• Steering and Implement Systems
• Boom and Bucket Circuits
• Earthmoving, Waste Handling, and Construction Projects

Why Choose This Gear 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 hydraulic gear pump on CAT 824H, 825H, 826H, 980G, 980G II, or 980H equipment?
A: Common signs include loss of hydraulic power to steering or implement functions, erratic or slow implement response, unusual noise (knocking or whining) from the hydraulic pump area, visible oil leakage around the pump, and overheating of the hydraulic system. These CAT machines are widely used in earthmoving, waste handling, and construction — a failing gear pump causes loss of productivity and costly downtime.

Q: Does the 2356501 fit all six equipment models?
A: Yes, the 2356501 (235-6501) is designed as a direct OEM-compatible replacement for the CAT 824H wheel dozer, 825H soil compactor, 826H landfill compactor, and 980G, 980G II, 980H wheel loaders. These models share the same hydraulic pump mounting and drive specifications. Contact us with your equipment serial number to confirm exact compatibility.

Q: What does the gear pump do on these CAT machines?
A: The hydraulic gear pump supplies pressurized hydraulic fluid to the machine's steering and implement circuits. On wheel loaders, it powers the loader arms and bucket. On compactors and dozers, it drives steering and implement functions. A failing gear pump causes loss of hydraulic pressure, leading to slow implement response, loss of steering control, and potential damage to other hydraulic components.

Q: Should I inspect the hydraulic system when replacing this gear pump?
A: Yes. Before installing the new gear pump, inspect all hydraulic lines, fittings, filters, and the hydraulic tank for contamination, discoloration, or metal particles. A failed gear pump often sheds metal debris throughout the hydraulic system. Flushing all hydraulic lines, replacing the hydraulic oil and filter, and checking for leaks is essential before startup.

Q: What type of hydraulic oil is recommended for the gear pump circuit on these CAT machines?
A: Caterpillar specifies Cat HYDO Advanced 10W or 30W hydraulic oil for the gear pump hydraulic circuit. Using non-CAT approved hydraulic fluids can cause accelerated wear, seal failure, and void the warranty. In demanding earthmoving, waste handling, and construction applications, more frequent hydraulic oil and filter changes are strongly recommended.

Q: How do I confirm this is the correct gear pump for my CAT equipment?
A: Check the part number on your current gear pump — if it reads 2356501 or 235-6501, this is the correct replacement. If the label is worn or missing, provide your equipment serial number and we will verify compatibility before you order.

Q: Does this gear pump come with mounting hardware or gaskets included?
A: The gear pump is supplied as a complete unit. Depending on your equipment 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 hydraulic gear pump?
A: This gear pump 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, using the wrong hydraulic oil type, or operating the equipment with a damaged hydraulic system.

Looking for this gear pump? Contact us today for pricing, availability, and lead time information.

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