Ripper Lift Cylinder Seal Kit 707-99-71440 for Komatsu D355A-3 Bulldozer
Ripper Lift Cylinder Seal Kit 707-99-71440 for Komatsu D355A-3 Bulldozer
Available in stock
Product Description
Part Name: Ripper Lift Cylinder Seal Kit
Part Number(s): 707-99-71440
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 707-99-71440 Ripper Lift Cylinder Seal Kit is manufactured to OEM specifications for the ripper lift hydraulic cylinder fitted to the Komatsu D355A-3 bulldozer. This complete hydraulic cylinder overhaul kit includes precision-engineered rod seals, piston seals, wear rings, guide rings, backup rings, O-rings and dust seals engineered to restore hydraulic sealing performance, eliminate hydraulic oil leakage and maintain optimum cylinder pressure. Manufactured from premium sealing materials, it provides long-lasting performance in demanding mining, quarrying, construction and heavy earthmoving operations.
The ripper lift hydraulic cylinder raises and lowers the rear ripper attachment, enabling the bulldozer to break compacted soil, rock and hard ground before grading or dozing. Continuous exposure to high hydraulic pressures, severe impact loads and abrasive operating conditions gradually wears the cylinder sealing components. Worn seals can lead to hydraulic oil leakage, ripper drift, reduced lifting force, slow cylinder response and internal hydraulic pressure bypass. Replacing the complete seal kit restores hydraulic efficiency, protects internal cylinder components and helps maximise machine productivity while reducing unplanned downtime.
Typical Applications
Mining • Quarrying • Construction • Heavy Earthmoving • Land Development • 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 maintaining ripper position
- Reduced hydraulic system efficiency
Cross-Reference Part Numbers
OEM Part Number: 707-99-71440
Compatible Models
Bulldozers: Komatsu D355A-3.
Fitment Note
Please verify the OEM part number, machine model, serial number and ripper lift hydraulic cylinder assembly before ordering. Komatsu may use different hydraulic cylinder configurations depending on the machine configuration and production series. Contact Imara Engineering Supplies if you require assistance confirming compatibility.
Technical Specifications
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