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  • PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y
  • PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y
  • PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y
  • PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y
  • PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y
  • PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y
PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y

PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y

  • >= 1 Pieces
    $2,720
View product details

PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Hydraulic Control Management: Directs hydraulic fluid flow to operate excavator functions such as arm, bucket, and track movements, ensuring precise machinery operation.
  • Compatibility: Designed as a genuine replacement part for PC138US-8 and PC138-8 excavators, fitting part numbers 723-59-14503 and 723-59-14504.

Key features

  • 1. Material Technology

    • With OEM-specified corrosion-resistant alloy construction, you can ensure long-lasting durability in harsh construction environments*.

  • 2. Interactive Design

    • Engineered with precision-fit design, you can achieve seamless installation and alignment, reducing maintenance downtime compared to generic alternatives*.

  • 3. Performance Parameters

    • With a 6-month warranty-backed build, you can handle high-pressure hydraulic systems with up to 20% longer service life than non-genuine parts*.

  • 4. Scenario Solutions

    • Designed specifically for PC138US-8/PC138-8 excavators, you can ensure optimal functionality in continuous-duty construction operations, unlike generic valves prone to failure*.

  • 5. Certification Standards

    • Compliant with ISO/SAE industry standards, you can meet safety and durability requirements unmatched by non-certified aftermarket parts*.

Product details

PC138US-8 PC138-8 Spare Part Excavator Main Control Valve 723-59-14503 723-59-14504 MCV Valve Ass'y

The PC138US-8 PC138-8 Spare Part Excavator Main Control Valve (MCV Valve Ass'y) is a genuine hydraulic component designed for excavators, ensuring precise hydraulic fluid control and optimal machine performance. Compatible with part numbers 723-59-14503 and 723-59-14504, this valve assembly enhances durability and reliability with a 6-month warranty.

Technical specifications

FeatureSpecificationBenefit
TypeHydraulic Control ValveEnsures precise fluid flow regulation
CompatibilityPC138US-8/PC138-8 excavatorsDirect OEM fitment for seamless repair
MaterialHigh-grade alloy steelResists wear and corrosion under pressure
Warranty6 monthsPeace of mind for critical machinery parts
CertificationISO 9001 compliantGuaranteed quality and safety standards

Customization guide

Adjustable parameters include material composition (e.g., stainless steel for corrosive environments) and valve dimensions to meet specialized excavator configurations or extreme operational demands.

Get inspired

With its genuine hydraulic design, you can achieve smoother excavator movements and extended part longevity. The high-grade alloy material ensures resistance to hydraulic fluid erosion, while the 6-month warranty safeguards your investment.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Flow Rate Capacity80 L/min+15% (92 L/min)+30% (104 L/min)*
Pressure Rating3000 PSI3500 PSI5000 PSI (Industry+40%)
Material DurabilityStandard alloyCorrosion-resistantPremium heat-treated

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s 5000 PSI pressure rating (40% above industry standards) enables safe operation in high-stress mining or demolition scenarios.
    • Advanced Model’s corrosion-resistant alloy extends service life in marine or chemical exposure environments.
    • Base Model’s direct OEM compatibility reduces downtime for routine excavator maintenance.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard construction sites requiring cost-effective replacements.
    • Advanced Model: Recommended for medium-duty applications (e.g., agriculture, light demolition) needing enhanced durability.
    • Pro Model: Tailored for heavy-industry users (e.g., mining, quarrying) where extreme pressure and longevity are critical. Pair its premium alloy with high-viscosity hydraulic fluids to maximize performance.

Frequently asked questions

  • Which excavator models is the PC138US-8 Main Control Valve compatible with?

  • How do I install the PC138-8 excavator main control valve correctly?

  • What’s the difference between genuine and aftermarket excavator control valves?

  • Does the PC138US-8 MCV come with a warranty? If so, what does it cover?

  • Why choose a genuine hydraulic main control valve for excavators?

  • How often should I service the excavator main control valve?

  • Are there any special tools needed to install the 723-59-14503/14504 MCV?

  • Can I get technical support for installing the excavator main control valve?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHeavy machinery maintenanceIndustry Standard: Carbon steel (ASTM A36)
Our Base: Alloy steel (ASTM A536) ▲
Our Advanced: Stainless steel (ASTM A240) ▲▲		Base: 20% stronger than industry standard
Advanced: Corrosion-resistant for harsh environments		Base: Moderate cost
Advanced: Higher price point
CompatibilityOEM replacement needsIndustry Standard: Generic fit (no certification)
Our Base: Certified OEM (ISO 9001) ▲
Our Advanced: Universal fit (SAE J1939) ▲▲		Ensures seamless integration with excavators
Advanced: Cross-brand compatibility		Base: Limited to specific models
Advanced: Requires adapter kits for older models
Warranty PeriodLong-term equipment operationIndustry Standard: 3 months
Our Base: 6 months ▲
Our Advanced: 12 months ▲▲		Base: Standard coverage
Advanced: Double industry norm		Base: Shorter coverage for high-wear parts
Advanced: Cost premium
Hydraulic PerformanceHigh-pressure hydraulic systemsIndustry Standard: 200 bar (ISO 4401)
Our Base: 250 bar ▲
Our Advanced: 300 bar ▲▲		Base: 25% higher pressure tolerance
Advanced: Supports heavy-load excavators		Base: Not suitable for extreme conditions
Advanced: Requires specialized fluid
Durability TestingContinuous operation in mines/constructionIndustry Standard: 5,000 cycle endurance (ISO 3410)
Our Base: 10,000 cycles ▲
Our Advanced: 20,000 cycles ▲▲		Base: Twice industry durability
Advanced: Quadruple industry standard		Base: Moderate weight
Advanced: Heavier design
Installation EaseQuick replacement by techniciansIndustry Standard: Custom tooling required
Our Base: Simplified tooling (ISO 13399) ▲
Our Advanced: Tool-free (SAE J1939) ▲▲		Base: 30% faster installation
Advanced: Plug-and-play convenience		Base: Requires training
Advanced: Limited to new excavator models

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