Replacement Hydraulic Pump for CAT D6R, Part Number 9T7099
Product Overview
Replacement Hydraulic Pump 9T7099 is a variable‑displacement Hydraulic piston pump, which serves as the main hydraulic pump for CAT D6R bulldozer Machine. This aftermarket replacement unit is fully interchangeable with the original OEM part, supplying high‑pressure oil for the complete hydraulic system. Built‑in charge gear pump provides pilot control pressure for steering, dozer blade and ripper functions. It is widely used for field overhaul, equipment repair and aftermarket spare‑parts replacement of heavy‑duty construction Machine.
Technical Specifications
- Model: 9T7099
- Product Category: Hydraulic piston pump, main variable‑displacement hydraulic pump
- Applicable Machine: CAT D6R, also compatible with CAT D6H series bulldozer
- Control form: Swash‑plate variable displacement control, integrated charge gear pump
- Max continuous working pressure: Up to 42 MPa
- Working medium: Anti‑wear mineral hydraulic oil for hydraulic system
- Working temperature: ‑20℃ ~ +85℃
- Feature: Same mounting dimensions, port positions and spline shaft as original pump; heavy‑duty cast‑iron housing; high volumetric efficiency; strong anti‑pollution and anti‑shock capacity; direct drop‑in replacement without modification on Machine
- Application: Main power source for bulldozer blade, ripper and steering hydraulic system
Working Principle
Driven by the engine of bulldozer Machine, this Hydraulic piston pump completes oil suction and high‑pressure oil discharge through reciprocating motion of internal pistons. The swash‑plate mechanism automatically adjusts displacement according to system load, matching flow output with actual working demand. The built‑in charge pump delivers pilot pressure oil to control valves. As the heart of the whole hydraulic system, this hydraulic pump provides stable power for lifting, tilting and steering movements of the bulldozer. Reliable internal structure reduces leakage and avoids typical failures such as weak blade action and insufficient steering response.
Core Advantages
1. Aftermarket replacement part with full interchangeability for original 9T7099, perfectly fits CAT D6R construction Machine, no modification required during installation.
2. Heavy‑duty structure design adapts to severe construction‑site working conditions, improves reliability of the complete hydraulic system.
3. High volumetric efficiency, stable pressure and flow output, effectively restores original working performance of bulldozer.
4. Integrated main pump plus charge gear pump assembly, convenient for overhaul and spare‑parts replacement.
5. Strict manufacturing standard, good durability and cost‑effective solution compared with original OEM hydraulic pump.
Application Range
9T7099 replacement Hydraulic piston pump is the critical main hydraulic pump for CAT D6R bulldozer Machine. It provides driving power for the complete hydraulic system. Widely supplied for machinery repair workshops, construction‑site maintenance and global aftermarket spare‑parts business for heavy‑duty construction equipment.
