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Professional NBR repair kit for Komatsu PC400‑5 excavator joystick pilot control valves, designed for heavy-duty construction and mining machinery applications.
Specification
Details
Place of Origin
Taiwan, China
Brand Name
Taiwan
Model Number
PC400‑5 Joystick Pilot Valve Seals
Minimum Order Quantity
5 SET
Price
Negotiable, special bulk discount for heavy-equipment spare-parts wholesalers
Technical Specifications
Parameter
Specification
Core Material
Custom-modified heavy-duty NBR (87-89 Shore A) with PTFE backup washers
Optimized NBR formula for frequent micro-reciprocating motion, reducing early fatigue cracks
Complete kit includes matched PTFE anti-extrusion backup washers
Each component individually marked with part number for easy identification
Reduces internal pilot-circuit leakage and improves joystick sensitivity
Anti-dust contamination performance for dusty construction environments
Strict OEM dimensional tolerance for direct replacement installation
Application Range
Komatsu PC400‑5 excavator joystick pilot control valve, heavy-duty construction machinery pilot hydraulic systems, and mining engineering equipment operating handle repair.
Compatible Models
Related pilot seal kit series: PC100‑5, PC120‑5, PC200‑3, PC200‑5, PC300‑5, PC400‑5, PC450‑6
Packaging & Delivery
Individual anti-dust PE bags with component serial numbers, desiccant included, moisture-proof kraft color carton. Custom OEM private-label services available.
Delivery Time: 1-2 working days for stocked goods; 15-30 working days for bulk orders Payment Methods: Western Union, Cash, Bank Transfer, PayPal, HSBC, CITY BANK Supply Capacity: 30,000 SET per month
Other Major Brands: Hitachi, CAT, Hyundai, Kobelco, Doosan/Daewoo, EC Series, Sumitomo, Kato, and Chinese local brands including CLG200, Sunward60, Sunward70, XG820
Product Images
Frequently Asked Questions
Q1: What is the difference between this PC400‑5 joystick pilot valve seal kit and ordinary aftermarket seal kits?
A1: Our product uses upgraded modified heavy-duty NBR compound optimized for frequent micro-reciprocating movement inside pilot valve. Compared with ordinary general-purpose NBR kits, it has lower compression set and better anti-fatigue performance. This complete kit includes PTFE anti-extrusion backup washers which are missing in many basic economical kits.
Q2: What machine and fault symptoms does this PC400‑5 joystick pilot valve seal kit apply to?
A2: Specifically designed for Komatsu PC400‑5 large excavator joystick pilot control valve. Solves typical failure symptoms including joystick drifting, slow operating response, unstable pilot pressure, and external oil seepage around joystick base.
Q3: Do I need extra modification when installing this pilot valve seal kit?
A3: No modification required. All sealing components are manufactured strictly according to OEM dimensional tolerances for direct-fit replacement. Professional maintenance personnel are recommended for installation.
Q4: What are working pressure and temperature parameters?
A4: Rated pilot working pressure: 35 Bar, maximum instant surge pressure: 45 Bar. Working temperature range: -30℃ to +110℃.
Q5: Do you accept small trial orders for machinery repair shops?
A5: Yes, MOQ is 2 sets. Small trial orders are supported for excavator repair shops and retail buyers. Volume-based discounts available for wholesale orders.
Quality Assurance & Support
Complete excavator spare-parts database for accurate matching
Professional sales team with 7+ years experience in construction machinery hydraulic parts
Strict pre-shipment inspection of dimensions, hardness, and component completeness
Free export document service for all orders
Rapid after-sales technical support within 24 hours
Establis in 1998, Guangzhou up-seal Technology Co.,Ltd.,originated fromGuangzhou huaxing oilseal trade company,She has authorized distributors for well-known brand oil seals .
‘upseal Technology Services’ team is having over 25+ years of experience in serving china as well as overseas...
Establis in 1998, Guangzhou up-seal Technology Co.,Ltd.,originated fromGuangzhou huaxing oilseal trade company,She has authorized distributors for well-known brand oil seals .
‘upseal Technology Services’ team is having over 25+ years of experience in serving china as well as overseas...
