CAT 1843124 (184-3124) Piston Pump | Fits 826G II 826H 825G II 825H 824G II 824H
CAT 1843124 (184-3124) Piston Pump | Fits 826G II 826H 825G II 825H 824G II 824H
CAT 1843124 (184-3124) Piston Pump | Fits 826G II 826H 825G II 825H 824G II 824H Wheel Loader
Premium hydraulic piston pump designed as a direct OEM-compatible replacement for Caterpillar 826G II, 826H, 825G II, 825H, 824G II, and 824H wheel loaders. Built to deliver consistent hydraulic performance and long service life in demanding mining, quarry, and construction applications.
Product Highlights
- Part Number: 1843124 / 184-3124
- 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 construction projects
Technical Specifications
- Part Number: 1843124 / 184-3124
- Product Type: Variable Displacement Piston Pump
- Brand Compatibility: Caterpillar (CAT)
- Application: Hydraulic System
- Warranty: 12 Months
Compatible Models
This piston pump fits the following Caterpillar wheel loaders:
- Caterpillar 826G II Wheel Loader
- Caterpillar 826H Wheel Loader
- Caterpillar 825G II Wheel Loader
- Caterpillar 825H Wheel Loader
- Caterpillar 824G II Wheel Loader
- Caterpillar 824H Wheel Loader
Applications
- Wheel Loader Lift and Tilt Functions
- Wheel Loader Drive and Steering Systems
- Heavy-Duty Loading and Digging Operations
- Mining, Quarry, and Construction Projects
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 hydraulic piston pump on CAT 826G II, 826H, 825G II, 825H, 824G II, or 824H wheel loaders?
A: Common signs include slow or weak lift and tilt response, the loader bucket hesitating or stalling when raising heavy loads, hydraulic oil overheating during normal loading cycles, whining or knocking noise from the pump area, and visible hydraulic fluid leakage. The 826G II and 826H are large wheel loaders used in high-production mining and landfill operations — pump failure causes immediate and severe productivity loss.
Q: Does the 1843124 fit all six wheel loader models?
A: Yes, the 1843124 (184-3124) is designed as a direct OEM-compatible replacement for the CAT 826G II, 826H, 825G II, 825H, 824G II, and 824H wheel loaders. These models share the same pump mounting and hydraulic system architecture. Contact us with your loader serial number to confirm exact compatibility.
Q: What hydraulic functions does this pump support?
A: As the main hydraulic pump, it supplies flow to the lift and tilt circuits (bucket functions), steering system, and any auxiliary circuits. In high-production loading applications like the 826G II in mining, the pump operates continuously under heavy load — any performance loss directly reduces loading cycle efficiency and tons per hour.
Q: Should I flush the hydraulic system when replacing this pump on a large wheel loader?
A: Always, and with extra diligence. Large wheel loaders like the 826G II and 826H operate under extreme continuous load in mining and landfill applications. Metal particles and contaminants from the old pump can destroy the new pump within hours. Drain and replace all hydraulic oil, flush the system thoroughly with clean oil, replace all filters, and refill with fresh Cat HYDO Advanced hydraulic oil. We strongly recommend professional installation.
Q: What type of hydraulic oil is recommended for these wheel loaders?
A: Caterpillar specifies Cat HYDO Advanced 10W or 30W depending on ambient operating temperature. For large wheel loaders in mining and landfill operations under constant heavy load, using non-CAT approved hydraulic fluids can cause immediate pump failure and void the warranty.
Q: How do I confirm this is the correct pump for my wheel loader?
A: Check the part number on your current hydraulic pump — if it reads 1843124 or 184-3124, this is the correct replacement. If the label is worn or missing (common in landfill/compaction environments), provide your wheel loader serial number and we will verify compatibility before you order.
Q: Does this pump come with mounting hardware or gaskets included?
A: The pump is supplied as a complete unit. Depending on your wheel loader configuration, you may need separate mounting bolts, 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 piston pump?
A: This piston 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, or using non-CAT approved hydraulic fluids.
Looking for this hydraulic pump? Contact us today for pricing, availability, and lead time information.
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