708-1L-00670 hydraulic pump for Komatsu D155A-6 D155AX-6 construction equipment
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OEM Part Numbers: 708-1L-00670, 708-1L-04270 (also 708-1L-01670 as subassembly)Fits: D155A-6, D155AX-6, D155AX-6A (S/N 85077–UP)
1. Pump Type & Specifications
Type: Main Variable Piston Pump (HPV95)
Displacement: 95 cm³/rev
Rated Pressure: 31.4 MPa (314 bar)
Control: Load-sensing, variable displacement
Weight: ~120 kg
Application: Main hydraulic pump for dozer transmission & work systems
2. Part Number Relation
708-1L-00670: Complete main pump assembly (current OEM)
708-1L-04270: Updated version / supersedes older revisions
708-1L-01670: Subassembly (without some accessories)
3. Compatible Models
Komatsu D155A-6
Komatsu D155AX-6
Komatsu D155AX-6A (updated variant)
4. Key Features
Genuine Komatsu quality, direct bolt-on replacement
Heavy-duty piston & cylinder block for high torque mining/quarry use
Reinforced housing & advanced sealing for long life
Precision load-sensing control for optimal fuel efficiency
Interchangeable with original; no modification needed
5. Supply & Warranty
Condition: New genuine / high-quality aftermarket / remanufactured
Warranty: 12 months (unlimited hours)
Stock: Guangzhou warehouse in stock, ships in 3–7 days
Packaging: Export wooden crate with anti-rust treatment
6. FAQ
Q: What’s the difference between 708-1L-00670 and 708-1L-04270?
A: 708-1L-04270 is the latest updated part number, functionally interchangeable with 00670.
Q: Does this pump fit D155A-5 or older models?
A: No, it’s specific to -6 / -6A series (different mounting & control interface).
Q: Can you provide repair kits for these pumps?
A: Yes, seal kits, bearing sets, piston groups, and valve plates are available.