Quality SK300LC IV SK300 IV Hydraulic Boom Cylinder for Kobelco Excavator Spare Parts 22438U1177F4 2438U1177F2 Aftermarket High Quality factory

SK300LC IV SK300 IV Hydraulic Boom Cylinder for Kobelco Excavator Spare Parts 22438U1177F4 2438U1177F2 Aftermarket High Quality

Name: SK300LC IV SK300 IV Hydraulic Boom Cylinder for Kobelco Excavator Spare Parts 22438U1177F4 2438U1177F2 Aftermarket High Quality
Brand: BELPARTS MACHINERY LIMITED
SKU: SK300LC IV SK300 IV
Price: 475.00 USD
Availability: InStock

Place of Origin:China

Brand Name:Belparts

Model Number:SK300LC IV SK300 IV

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:

SK300LC IV hydraulic boom cylinder

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Kobelco excavator spare parts

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aftermarket hydraulic cylinder Assy

Model: SK300LC IV SK300 IV

Part Number: 22438U1177F4 2438U1177F2

Part Name: Hydraulic Boom Cylinder

Appliion: Excavator

Condition: New

Quality: Aftermarket High Quality

Warranty: 1 Year

Shipment: DHL FEDEX TNT EMS UPS / Ses / Air

Emission Standards: Stage V

Product Description

Kobelco SK300LC-IV / SK300-IV LH Boom Hydraulic Cylinder | PN:2438U1177F2 / 2438U1177F4 | Premium Aftermarket Replacement

1. Basic Product Info

High-quality aftermarket LEFT HAND boom cylinder exclusively for Kobelco SK300LC-IV, SK300-IV crawler excavator, dual interchange OEM part numbers: 2438U1177F2,2438U1177F4, direct OEM replacement for original factory boom cylinder, controls boom lifting/lowering for heavy quarry mining, rock loading, large earthmoving and highway construction projects. Fully matched original dimension, pin pitch, oil port layout for plug-and-play installation without field machining modifiion.

Item	Details
Product Name	Hydraulic Boom Cylinder (Left Side)
Fit Model	Kobelco SK300-IV, SK300LC-IV; also compatible with partial SK330LC-IV LH boom
OEM Part No.	2438U1177F2, 2438U1177F4
Quality Grade	Brand New High Standard Aftermarket
Warranty	12 months against factory defects
MOQ	1 unit in ready stock
QC Standard	ISO9001 certified, full hydraulic pressure inspection before shipment

2. Core Technical Specifiion

Spec Item	Parameter
Bore Inner Dia	150mm
Piston Rod Dia	100mm
Rated Working Pressure	34.3MPa
Factory Test Pressure	51.45MPa (1.5×working pressure)
Barrel Tube	ST52 seamless alloy steel, precision deep inner honing
Piston Rod	40Cr quenched & tempered steel, hard chrome coating 28~32μm, surface hardness HRC67-70 anti-bending & abrasion-resistant
Complete Seal Kit PN	2438U1170R100 (optional separate purchase)
Operating Temp	-25℃ ~ +85℃
Mount Structure	Double ear with wear-resistant copper bushing, piston rod side built-in buffer structure

3. Core Product Advantages

Double PN Universal Fit: Two OEM numbers fully interchangeable, fits all production batches SK300-IV/SK300LC-IV left boom, matches original boom arm & hydraulic pipeline perfectly.
Heavy-Duty Reinforced Design: Thickened ear root and cylinder barrel, anti-crack & anti-deform under frequent heavy-load rock digging, customized for rugged mine working condition.
Full Pre-delivery Leakage Test: Each cylinder finishes full-stroke reciproing cycling + tightness test to eliminate inner & outer oil leakage before delivery.
Cost-Effective Solution: Same working performance as genuine Kobelco original spare parts while saving 43%~52% purchase cost for global excavator parts dealers & repair shops.
Flexible Shipment: In-stock goods deliver within 3 working days; air freight 3~7 days for urgent orders, sea shipment 30~40 days for bulk wholesale.

4. Supplier Profile

Our factory specializes in Kobelco SK series hydraulic cylinders over 12 years, complete boom/arm/bucket cylinder range covering SK200, SK250, SK300, SK330, SK350 IV series, products mainly exported to Africa, Southeast Asia, Middle East aftermarket spare parts market.

5. FAQ

Q1: Can this LH cylinder replace right-hand boom cylinder (PN:2438U1170F series)?
A: No, RH boom uses separate part number 2438U1170F1/F2/F3/F4 with different oil port layout, cannot cross installation.
Q2: Does standard package include matching seal kit?
A: Standard cylinder without seal set; matched repair seal kit 2438U1170R100 available with bundle discount when ordered together.
Q3: Export anti-rust packaging for long ocean transport?
A: Inner cylinder filled anti-rust hydraulic oil, piston rod coated anti-rust grease, wrapped waterproof PE film + solid export plywood case.
Q4: Discount for full set boom+arm+bucket cylinder bulk purchase?
A: Full set combined order enjoys tiered unit discount plus consolidated single shipment to cut total logistics expense.
Q5: Warranty support for abnormal oil leakage?
A: Provide on-site leakage photos + excavator serial number, we supply free replacement seal kit or remote installation guidance within warranty period.