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Product Details:
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| Shipping Method: | By Sea, By Air, By Express | Key Word: | Rubber O Ring |
|---|---|---|---|
| Feature: | Oil Resistance | Operatingtemperaturerange: | -30°C To 100°C (-22°F To 212°F) |
| Seal Type: | Piston Seal, Rod Seal, Wiper Seal | Maintenance: | Low Maintenance |
| Weight: | Varies Depending On Kit Size, Typically 0.2-1 Kg | Color: | Black, Brown, Blue (depending On Material) |
| Rod Seal Type: | Dark Blue Skf Brand | Port: | China |
| Product Type: | Hydraulic Cylinder | Package: | Bag And Carton |
| Supplier: | China Supplier | Package Contents: | Multiple Seals And O-rings |
| Style: | Hydraulic,Mechanical Seal,O Ring |
1058739 105-8739 Oversize Wear Ring Hydraulic Cylinder Loader Lift Tift Steering Seal Kit
Version 3 (Maintenance & Wear Compensation Focus)
Preventive maintenance on excavator loaders should include the oversize wear ring 1058739 for tilt steering cylinders. Part number 105-8739 addresses common clearance issues in loader lift cylinders with more than 5000 operating hours. The hydraulic cylinder kit featuring 1058739 contains oversized wear rings, rod seals, and wipers for complete restoration. When lift cylinder noise becomes audible, install 105-8739 alongside 1058739 to recenter the piston assembly. Excavator service logs indicate that 1058739 and 105-8739 extend cylinder rebuild intervals by 40 percent. The oversize wear ring 105-8739 (identical to 1058739 in function) resists deformation under radial loads up to 5000 PSI. For steering and lift cylinder overhauls, 1058739 and 105-8739 deliver reliable performance in bores worn up to 0.5mm oversize. Always measure the cylinder bore before inserting 1058739 to select the correct oversize dimension.
Version 4 (Steering & Loader Precision Restoration Focus)
The oversize wear ring kit designated 1058739 restores steering precision for excavator loader hydraulic systems. Part number 105-8739 works alongside 1058739 to seal both piston and bore interfaces in lift cylinders. When loader tilt function becomes noisy or jerky, replacing worn support rings with 1058739 eliminates metal contact. The steering hydraulic circuit using 105-8739 maintains proper piston alignment under side-load conditions. Excavator technicians recommend 1058739 for steering applications because the oversize design compensates for bore ovality. The wear ring configuration 105-8739 (paired with 1058739) prevents leakage caused by piston misalignment in high-cycle lift operations. Every overhaul kit containing 1058739 and 105-8739 undergoes hardness verification to ensure wear resistance matches OEM specifications exactly.
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