CAT 9T3680 (9T-3680) Hydraulic Piston Pump | Fits D6H XL D6R D6H XR D6H II D6H
CAT 9T3680 (9T-3680) Hydraulic Piston Pump | Fits D6H XL D6R D6H XR D6H II D6H
Premium hydraulic piston pump designed as a direct OEM-compatible replacement for Caterpillar (CAT) track-type tractors (bulldozers), ensuring precision control and reliable power transmission. Built to deliver optimal volumetric efficiency, high-pressure performance, and an extended service life in demanding heavy earthmoving, land clearing, and construction applications.
Product Highlights
- Part Number: 9T3680 / 9T-3680
- Direct Fit OEM Replacement: Form, fit, and function match original Caterpillar engineering specifications perfectly without requiring any modifications.
- Heavy-Duty Construction: Manufactured with high-strength alloys and wear-resistant precision internal parts to withstand extreme hydraulic pressures and continuous high-load operations.
- Optimized Efficiency: Advanced piston and valve plate design minimizes internal friction, ensures smooth hydraulic flow, and optimizes fuel efficiency for your machinery.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 9T3680 / 9T-3680 |
| Product Type | Heavy-Duty Hydraulic Piston Pump |
| Brand Compatibility | Caterpillar (CAT) |
| Application | Main Hydraulic & Implement System |
| Material | High-Strength Precision Alloys & Cast Materials |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium piston pump is precision-engineered to fit the following Caterpillar track-type tractors (bulldozers):
- Caterpillar D6H / D6H II / D6H XL / D6H XR
- Caterpillar D6R
Key Applications
- Bulldozer Blade & Ripper Hydraulics: Powers critical blade lift, tilt, angle control, and rear ripper functions for heavy-duty earthmoving.
- Heavy Earthmoving & Land Clearing: Built to withstand relentless duty cycles and heavy shock loads on tough mining, construction, and agricultural jobsites.
- System Pressure Restoration: Eliminates hydraulic fluid bypass and slow cylinder response, restoring the bulldozer's original operating speed and lifting power.
Why Choose Our Aftermarket CAT Pumps?
- Guaranteed OEM Quality: Manufactured under strict ISO 9001 quality standards to match or exceed original equipment performance and durability.
- Cost-Effective Solution: Achieve premium dealer-level reliability and identical performance at a fraction of the OEM replacement price.
- Ready to Ship: Kept in stock for immediate worldwide dispatch to reduce your machine's idle downtime significantly.
- Industry-Leading Support: Backed by a full 1-year warranty and a team of professional heavy machinery hydraulic technical experts.
Frequently Asked Questions (FAQ)
Q: Is this piston pump a genuine Caterpillar part?
A: This is a premium-grade, OEM-compatible aftermarket replacement pump. It is engineered to exact CAT dimensional and technical standards, serving as a direct drop-in replacement for part number 9T-3680 / 9T3680.
Q: My CAT D6R bulldozer is experiencing hydraulic pressure loss and slow blade lift. Is it time to rebuild or replace the 9T-3680 pump?
A: Severe pressure drop or slow cylinder response on D6H or D6R dozers usually stems from internal piston and valve plate wear. Instead of conducting an expensive and time-consuming pump rebuild (piston pump rebuilding), installing this brand-new aftermarket 9T3680 piston pump is a faster, more reliable way to completely restore original hydraulic power.
Q: Does this pump come pre-lubricated or ready for direct installation?
A: Yes, the pump arrives ready for installation. However, to protect the precision internal components, we highly recommend performing a thorough hydraulic system flush and filling with clean, fresh hydraulic oil before initial startup.
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty fully covers all manufacturing defects, material failures, and workmanship issues under standard and proper operating conditions.
Need a Quote for CAT 9T3680?
Contact us today for the latest pricing, bulk discounts, and shipping availability.
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