Quality PC300LC-5 PC300-5 Hydraulic Boom Cylinder for Excavator Spare Parts 207-63-53120 Aftermarket High Quality factory

PC300LC-5 PC300-5 Hydraulic Boom Cylinder for Excavator Spare Parts 207-63-53120 Aftermarket High Quality

Name: PC300LC-5 PC300-5 Hydraulic Boom Cylinder for Excavator Spare Parts 207-63-53120 Aftermarket High Quality
Brand: BELPARTS MACHINERY LIMITED
SKU: PC300LC-5 PC300-5
Price: 475.00 USD
Availability: InStock

Place of Origin:China

Brand Name:Belparts

Certification:CE

Model Number:PC300LC-5 PC300-5

Minimum Order Quantity:1 PCS

Price:Negotiation

Payment Terms:L/C,D/A,D/P,T/T,TRADE ASSURANCE,WEST UNION,PAYPAL

Supply Ability:100 PCS / Months

Product Details

Highlight:

PC300LC-5 hydraulic boom cylinder

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excavator spare parts cylinder

,

aftermarket hydraulic cylinder assy

Model: PC300LC-5 PC300-5

Part Number: 207-63-53120

Part Name: Hydraulic Boom Cylinder

Application: Excavator

Condition: New

Quality: Aftermarket High Quality

Warranty: 1 Year

Shipment: DHL FEDEX TNT EMS UPS / Ses / Air

Emission Standards: Stage V

Product Description

Komatsu PC300LC-5 / PC300-5 Hydraulic Boom Cylinder | PN:207-63-53120 | Premium Aftermarket Replacement

1. Basic Product Info

This heavy-duty aftermarket hydraulic boom cylinder is precision manufactured as a direct OEM interchangeable replacement for Komatsu PC300-5 and PC300LC-5 large excavators. As the core hydraulic power component of front working equipment, it controls boom lifting and lowering to complete heavy excavation, bulk rock loading, large-area ground leveling and open-pit mining tasks. Widely used in stone quarries, open mines, large highway infrastructure and heavy earthmoving projects.

All cylinders are produced strictly in accordance with Komatsu original technical drawings and OEM standards, with fully consistent mounting dimensions, pin hole spacing and hydraulic port layout. Direct bolt-on installation without cutting, welding or any on-site secondary modification.

Item	Specification
Product Name	Hydraulic Boom Cylinder
Applicable Model	Komatsu PC300-5, PC300LC-5 Large Excavator
OEM Part Number	207-63-53120
Product Grade	Brand New High-Quality Aftermarket
Warranty	12 months against manufacturing defects
MOQ	1 unit, sufficient stock for immediate shipment
QC Standard	ISO9001 certified, full hydraulic pressure & cyclic fatigue testing before delivery

2. Core Technical Parameters

PC300LC-5 PC300-5 Hydraulic Boom Cylinder for Excavator Spare Parts 207-63-53120 Aftermarket High Quality

#	Part No.	Description	Qty
G-1	(207-63-X2100)	BOOM CYLINDER GROUP,L.H	1
G-1	(207-63-X2110)	BOOM CYLINDER GROUP,R.H	1
	----	====================
1	207-63-02100	BOOM CYLINDER ASS'Y	1
1	207-63-53140	Cylinder	1
2	707-76-90180	Bushing	1
3	07145-00090	SEAL,DUST (KIT)	2
4	07020-00675	FITTING,GREASE (WITHOUT LUB. PIPING)	1
5	207-63-53120	Rod	1
6	707-76-10130	Bushing	1
7	07145-00100	SEAL,DUST (KIT)	2
8	707-71-31090	COLLAR	1
9	707-71-31081	COLLAR	1
10	07001-05135	RING,BACK-UP (KIT)	2
11	07000-15135	O-RING,BACK-UP (KIT)	1
12	707-71-61020	PLUNGER	1
13	707-71-11040	Ring	1
14	707-27-14630	HEAD	1
15	176-63-56170	SEAL,DUST (KIT)	1
16	07179-13114	RING,SNAP (KIT)	1
17	707-52-90750	Bushing	1
18	707-51-10030	PACKING,ROD (KIT)	1
19	707-51-10630	RING,BUFFER (KIT)	1
20	07001-05135	RING,BACK-UP (KIT)	1
21	07000-15135	O-RING,BACK-UP (KIT)	1
22	01010-81875	BOLT (KIT)	12
23	707-41-11840	Washer	12
24	707-36-14340	Piston	1
25	707-40-14870	Spacer	2
26	01252-31250	Bolt	6
27	707-44-14180	RING,PISTON (KIT)	1
28	707-39-14820	RING,WEAR (KIT)	2
29	707-44-14910	Ring	2
30	707-35-52920	RING,BACK-UP (KIT)	2
31	07000-12080	O-RING (KIT)	1
32	207-63-53171	TUBE,L.H	1
32	207-63-53271	TUBE,R.H	1
33	207-63-53181	TUBE,L.H	1
33	207-63-53281	TUBE,R.H	1
34	01010-51060	BOLT, MOUNT TUBE TO SWITCH PUMP	8
35	01643-51032	WASHER, (WITHOUT EMERGENCY STEERING)	8
36	07000-13035	O-RING, UPPER COOLER INLET AND OUTLET PORTS	2
37	707-88-95731	Bracket	1
38	707-88-95720	BAND	1
39	01010-51240	BOLT,(WITH SERVICE VALVE R.H.)	4
40	01643-51232	WASHER, (WITHOUT EMERGENCY STEERING)	4
41	07283-23442	CLIP,(WITH UNDER MIRROR)	1
42	01643-31032	WASHER,(WITH AUTO EMERGENCY STEERING)	2
43	01599-01011	NUT,(WITH UNDER MIRROR)	2
44	01010-51025	BOLT,(FOR CANVAS CANOPY?HEAD GUARD)	2
45	01643-31032	WASHER,(WITH AUTO EMERGENCY STEERING)	2
	----	====================

Spec Item	Data
Bore Diameter	145mm
Piston Rod Diameter	94mm
Working Stroke	1540mm
Rated Working Pressure	31.4MPa
Factory Test Pressure	47.1MPa (1.5 times rated working pressure)
Barrel Material	High-tensile seamless alloy steel with precision inner honing
Piston Rod	40CrMo heat-treated steel, 28~32μm hard chrome plating, HRC68–72, excellent wear resistance & anti-bending performance
Matching Seal Kit PN	207-63-53120K
Working Temperature	-25℃ ~ +85℃
Structure Feature	Double heavy-duty ear lugs with quenched copper wear bushings, built-in buffer device to reduce strong impact during reciprocating movement

3. Product Advantages

100% OEM Exact Fitment for Two Machine Models
Perfectly compatible with both PC300-5 and PC300LC-5 long-track version. All assembly sizes, lug spacing and oil port positions fully match original PN 207-63-53120 cylinder, seamlessly connecting boom linkages and hydraulic pipelines for stable long-hour heavy-load mining operation.
Mine-Grade Reinforced Heavy-Duty Structure
Thickened cylinder tube and reinforced joint lugs are specially optimized for harsh mine and quarry environments, resisting long-term cyclic heavy loads, rock collision impacts and abrasion to greatly extend service life.
Multi-Round Strict Pre-Delivery Inspection
Each finished cylinder undergoes repeated full-stroke reciprocating cycle test and high-pressure airtight leak detection, completely eliminating hidden internal and external oil leakage hazards.
Outstanding Cost Performance
Delivers identical stability, strength and service lifespan as genuine Komatsu OEM spare parts, effectively cutting recurring procurement costs for mining repair shops, machinery rental fleets and global spare parts wholesalers.
Flexible Global Logistics Support
In-stock items can be dispatched within 3 working days. Air freight supports urgent breakdown rush orders; sea freight provides cost-saving bulk wholesale shipping for Africa, Southeast Asia, Middle East and Latin American mining markets.

4. Supplier Brief

Our factory has over 10 years of professional experience in R&D and mass production of hydraulic cylinders for classic Komatsu large PC series excavators including PC300-5/PC300LC-5. We supply complete boom, arm and bucket cylinder assemblies with mature forging, honing and heat treatment craft, plus full-process strict quality control. Our aftermarket hydraulic cylinders are exported worldwide all year round, winning long-term trust and consistent positive feedback from global machinery spare parts dealers.

5. FAQ

Q1: Can this boom cylinder fit Komatsu PC300-6 or PC350-5 excavators?

A: No. Each Komatsu excavator generation uses exclusive part numbers and unique structural dimensions without interchangeability. Please confirm your complete machine model before ordering.

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

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

Q3: How is the cylinder packed for long-distance ocean transportation?

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

Q4: Are there tiered volume discounts for purchasing a full set of boom + arm + bucket cylinders for PC300-5 series?

A: Yes. Complete working device cylinder set orders enjoy graded volume discounts. Consolidated FCL container shipment service is available to reduce total logistics expenditure.

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

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