Komatsu PC300-6LE PC300LC-6LE Hydraulic Bucket Cylinder 207-63-02531 144mm Bore 1530mm Stroke Aftermarket

This heavy-duty aftermarket bucket hydraulic cylinder is precisely manufactured as a direct interchange spare part for Komatsu PC300-6LE and long-track PC300LC-6LE large excavators. As the key hydraulic actuator of front working attachment, it drives bucket digging, rock grabbing, bulk material loading and dumping. Widely applied in open-pit mines, stone quarries, large infrastructure and heavy earthmoving projects.

All cylinders are produced strictly following Komatsu OEM technical drawings, with identical mounting dimensions, pin hole pitch and hydraulic oil port layout. Direct bolt-on installation without cutting, welding or any field modification.

1. Two OEM Part Numbers Fully Interchangeable

   207-63-02531 and 207-63-02130 belong to the same bucket cylinder assembly, perfectly matching both standard and long-track PC300-6LE models. All connection sizes align with original Komatsu parts for stable continuous heavy-load mining operation.

2. Mine-Grade Reinforced Heavy Load Design

   Thickened cylinder barrel and reinforced lug plates are optimized for harsh mine and quarry conditions, resisting frequent rock collision, long-term cyclic heavy loads and abrasion to extend service life significantly.

3. Strict Multi-Round Pre-Delivery Inspection

   Every finished cylinder completes full-stroke reciprocating cycle test and high-pressure air tightness inspection, thoroughly eliminating internal and external oil leakage hidden troubles.

4. Excellent Cost Performance

   Equivalent stability, strength and service life as genuine Komatsu OEM spare parts, effectively lowering repeated purchasing costs for repair shops, equipment rental companies and global spare parts wholesalers.

5. Flexible Global Logistics Solutions

   In-stock goods can be shipped out within 3 working days. Air freight for urgent breakdown orders; sea bulk shipment for cost-saving large-volume wholesale to Africa, Southeast Asia, Middle East mining markets.

Our factory owns more than 10 years of professional experience in developing and manufacturing hydraulic cylinders for Komatsu large PC series excavators, including PC300-6LE / PC300LC-6LE. We supply complete boom, arm and bucket cylinder assemblies with mature heat treatment, honing and welding craft, plus full-process strict quality control. Our aftermarket hydraulic cylinders are exported all year round to global aftermarket markets, winning long-term trust and consistent positive feedback from worldwide machinery spare parts dealers.

Q1: Can this bucket cylinder fit Komatsu PC300-5 or PC300-7 excavators?

A: No. Different generations of Komatsu PC300 excavators adopt exclusive part numbers and unique structural dimensions without interchangeability. Please confirm your complete machine model before placing orders.

Q2: Does the standard package contain the matching seal repair kit?

A: Seal repair kit is not included in standard shipment. You can purchase the dedicated supporting seal kit separately, and we will provide a favorable combined order quotation.

Q3: What packaging is used for long-distance sea transportation?

A: Anti-rust oil is injected into cylinder inner cavity, anti-rust grease evenly coated on piston rod surface. The whole cylinder is wrapped with thick waterproof PE film and packed in reinforced export plywood cases to avoid scratch, collision and moisture damage during long ocean transit.

Q4: Will there be volume discounts when buying a full set of boom + arm + bucket cylinders?

A: Yes. Complete working device cylinder set orders enjoy tiered bulk discounts. Consolidated full container shipment service is available to cut total logistics costs.

Q5: What after-sales support if oil leakage happens within the 12-month warranty period?

A: Please provide clear photos of the leakage position and excavator serial number. We will arrange free seal replacement and professional remote troubleshooting guidance promptly.