Ripper Lift Cylinder Seal Kit 707-99-71420 for Komatsu D155A-2 D155A-2A Bulldozer
Ripper Lift Cylinder Seal Kit 707-99-71420 for Komatsu D155A-2 D155A-2A Bulldozer
Available in stock
Product Description
Part Name: Ripper Lift Cylinder Seal Kit
Part Number(s): 707-99-71420
Brand Compatibility: Komatsu
Machine Type: Bulldozer
Component: Ripper Lift Hydraulic Cylinder
Condition: Brand New
Shipping: Fast worldwide shipping with secure packaging and reliable international delivery within 2–7 business days.
The 707-99-71420 Ripper Lift Cylinder Seal Kit is manufactured to OEM specifications for the ripper lift hydraulic cylinder fitted to selected Komatsu D155A-2 and D155A-2A bulldozers. This complete hydraulic cylinder overhaul kit includes precision-engineered rod seals, piston seals, wear rings, guide rings, backup rings, O-rings and dust seals designed to restore hydraulic sealing performance, eliminate hydraulic oil leakage and maintain optimum cylinder pressure. Manufactured from premium sealing materials, it delivers dependable performance in demanding mining, quarrying, construction and heavy earthmoving environments.
The ripper lift hydraulic cylinder raises and lowers the rear ripper assembly, enabling efficient ground penetration, rock breaking and soil loosening before dozing operations. Continuous operation under high hydraulic pressures, severe shock loads and abrasive site conditions gradually wears the cylinder sealing components. Worn seals can cause hydraulic oil leakage, ripper drift, reduced lifting force, slow cylinder movement and internal hydraulic pressure bypass. Replacing the complete seal kit restores hydraulic efficiency, protects internal cylinder components and helps maximise bulldozer productivity while reducing costly downtime.
Typical Applications
Mining • Quarrying • Construction • Heavy Earthmoving • Land Clearing • Road Construction • Site Preparation • Forestry
Common Symptoms
- Hydraulic oil leakage from the ripper lift cylinder
- Ripper drifting during operation
- Reduced ripper lifting force
- Slow ripper raise or lower movement
- Internal hydraulic pressure bypass
- Difficulty holding ripper position
- Reduced hydraulic system efficiency
Cross-Reference Part Numbers
OEM Part Number: 707-99-71420
Compatible Models
Bulldozers: Komatsu D155A-2, D155A-2A.
Fitment Note
Please verify the OEM part number, machine model, serial number and ripper lift hydraulic cylinder assembly before ordering. Komatsu may use different ripper cylinder configurations depending on the machine model, production series and serial number. Contact Imara Engineering Supplies if you require assistance confirming compatibility.
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Technical Specifications
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