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904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit

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904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit

904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit
904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit 904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit 904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit

Large Image :  904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit

Product Details:
Place of Origin: CHINA
Certification: ISO9001
Model Number: 904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit
Payment & Shipping Terms:
Minimum Order Quantity: 100
Price: Negotiable
Packaging Details: PP Bag Inside,Carton Box Outside
Delivery Time: Within 3-15 days after getting your desposit
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 3000
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904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit

Description
Seal Configuration: Rod Seal, Piston Seal, Wiper Seal Maintenance: Low
Clour: Black Blue Usage Of Part: Boom
Feature: Oil Resistance Shipment Way: By Sea, By Air, By Express
Productname: Hydraulic Cylinder Seal Kits Package Detail: Bag Or Box
Pressure Rating: High Pressure Stock: Have Enough Stock For Selling
Appliion: Mining Wiper Seal Brand: TecThane
Transport Package: Carton Packing Chemical Resistance: Resistant To Most Chemicals
Highlight:

hydraulic cylinder seal kit

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excavator black ring seal

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loader hydraulic seal kit

904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit 0

904-20336 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kit

Installation and maintenance simplicity further enhance the value of 904-20336 and 90420336. The kit includes a magnetic alignment tool that ensures precise NRR Black Ring placement (reducing installation errors by 85%) and a wear-indicator pen (detecting 0.05mm+ wear without disassembly). Unlike previous kits requiring specialized training (e.g., 7079915600’s chemical-compatibility checks), 90420336 can be installed by any technician in 30–45 minutes—half the time needed for application-specific kits. The NRR Black Ring’s flexible design also accommodates minor cylinder surface imperfections (up to 0.08mm), eliminating the need for expensive cylinder resurfacing. A construction fleet in California reported that new technicians could install 904-20336 seals correctly on their first attempt, whereas the 7079873010 kit required 2–3 training sessions to master boom/arm alignment.​
Quality testing for 904-20336 and 90420336 goes beyond standard ISO 14922 (hydraulic seal specifications) to include three specialized evaluations:​
  1. Friction Wear Test: 1,500 hours of 800 rpm piston movement to verify wear resistance.​
  1. Moisture Swelling Test: 1,000 hours in 95% humidity to check for dimensional stability.​
  1. Extreme Pressure Test: Exposure to 55 MPa pressure to ensure no extrusion.​
These tests confirm that 90420336 and 904-20336 last 8,500+ hours in heavy-duty operations—6–8x longer than generic seals and 2–3x longer than previous specialized kits. For fleet managers, this translates to ​
50,000 in annual maintenance savings per machine, as seal replacements and downtime are drastically reduced.​
In conclusion, the 904-20336 and 90420336 NRR Black Ring Seal Hydraulic Cylinder Loader Excavator Seal Kits redefine universal hydraulic seal performance. Their proprietary NRR Black Ring technology solves the triple challenges of friction wear, moisture swelling, and pressure deformation—gaps unaddressed by previous application-specific kits. With universal compatibility, easy installation, and exceptional durability, these part numbers ensure reliable operation across all hydraulic cylinder types in excavators and loaders. Whether servicing a loader’s lift cylinder, an excavator’s boom cylinder, or a steering system in a coastal environment, 904-20336 and 90420336 deliver consistent, long-lasting protection, minimizing downtime and maximizing equipment productivity.

Tag:

ZAX240 Hydraulic Cylinder Oil Seals,

PC200 Control Valve Seal Kit,

Komatsu Hydraulic Cylinder Seal Kits

Contact Details
Jiangsu Runfeng Jiu Seals Co., Ltd.

Contact Person: SUNNY

Tel: 86 18605253464

Send your inquiry directly to us (0 / 3000)

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