07011-20080 0701120080 Full Torque Converter Oil Seal Kit OEM Genuine Replacement Spare Parts for D61PX-18 Mining Bulldozer Torque Converter System Complete Overhaul

1. Quick Details of  seal 07011-20080:

2. 07011-20080 picture:

3. Service part number :

4. FAQ

Q: Which medium heavy open-pit mining bulldozer model is this oil seal kit 07011-20080 specially developed and OEM matched for, and what multi-layer high-temperature heat-resistant vibration-absorbing integrated sealing protection can this torque converter full overhaul kit deliver to the continuous high-speed rotary input shaft that works under long-term engine heat radiation?
A: This genuine standard oil seal kit marked 07011-20080 is exclusively customized for Komatsu D61PX-18 medium heavy mining bulldozers, widely used in open-pit shallow ore stripping, construction site soil leveling and mountain road foundation compaction operations, dedicated to full disassembly maintenance of torque converter input shaft sealing assembly. The torque converter input shaft runs at stable medium-high speed all day long, bearing continuous engine vibration, high heat conduction from the engine compartment and instantaneous hydraulic pressure impact during frequent forward and reverse gear switching. The working environment is filled with high-viscosity transmission torque converter oil, flying mine silt, sharp rock dust and mineralized rainwater; in high-altitude northern mining areas, the equipment will face ultra-low temperature freezing in winter, and the torque converter cavity will accumulate severe heat for a long time under continuous full-load rock pushing in summer. This integrated all-in-one overhaul kit contains one core multi-lip heat-resistant vibration-damping rotary shaft oil seal, multiple specifications of flat modified HNBR sealing gaskets, multi-model dust isolation O-rings and hybrid fiber reinforced PA66 anti-extrusion backup rings, forming a five-stage composite high-temperature pressure-resistant sealing barrier on the torque converter heavy-duty rotary shaft. It can thoroughly block internal high-viscosity torque converter oil from leaking outward along the shaft gap, prevent external sediment, gravel and corrosive mine wastewater from invading the converter bearing and impeller inner cavity, avoid premature bearing melting ablation, impeller surface pitting abrasion and sudden bulldozer walking power loss failure, and maintain stable constant hydraulic sealing pressure inside the torque converter system under long-term uninterrupted heavy mining loads. All internal sealing accessories adopt exclusive medium heavy-duty customized dimensional parameters perfectly matching the internal cavity structure of D61PX-18 torque converter, cannot be interchanged or mixed assembled with seal kits of small bulldozers or wheel loaders. It supports one-stop full torque converter disassembly maintenance for medium-sized integrated mining machinery repair factories and professional medium heavy bulldozer after-sales service stations, completely eliminating huge production delay losses caused by separately purchasing scattered sealing accessories and mismatched installation sizes.

Q: What stable long-term working pressure, maximum continuous rotary linear speed and full high-low temperature operating limit range can this full composite integrated oil seal kit withstand to maintain long-term zero internal high-viscosity torque converter oil leakage and zero external mine silt corrosive water intrusion sealing performance for D61PX-18 medium heavy mining bulldozer torque converters?
A: This complete integrated oil seal kit assembly can stably operate long-term under internal torque converter oil pressure of 1.35–2.55MPa, and resist repeated instantaneous peak hydraulic pressure impact up to 3.7MPa generated during bulldozer rapid heavy rock pushing and full forward-reverse gear shifting cycles. The maximum allowable continuous rotary linear speed of the main sealing lip reaches 0.74m/s, fully matching the daily long-time full-load medium-high speed rotation frequency of D61PX-18 medium heavy open-pit mining bulldozers. The overall applicable working temperature range covers -64°C ~ +178°C, which can meet the ultra-low temperature cold start demand of alpine open-pit mining yards in winter and long-hour continuous high-temperature operation of torque converters under full heavy rock pushing load in hot summer months. Hybrid aramid-carbon fiber reinforced NBR main lip resists high-temperature oil swelling and thermal oxidation aging, modified HNBR auxiliary sealing accessories resist cryogenic hardening and cold brittleness, double-layer electro-galvanized thick steel skeleton avoids corrosion and deformation caused by humid mine silt, hybrid fiber PA66 backup rings prevent permanent lip extrusion damage; all matching supporting components jointly resist thermal aging, sharp sand and rock particle abrasion and long-term torque converter oil erosion after millions of heat-vibration mixed rotary cycles, realizing year-round stable zero internal torque converter oil leakage and zero external mine silt corrosive water entering the torque converter inner cavity. The multi-lip layered heat insulation dust-proof buffer structure can absorb instantaneous pressure impact pulses, block tiny metal impeller and bearing wear debris from scratching the sealing lip surface, and effectively reduce abnormal continuous roar noise of the torque converter, bearing overheating and impeller surface pitting abrasion faults caused by early seal aging and failure.

5. Exhibition and Wearhous

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More