The 138-5134 wiring harness is an important electrical component for compatible Caterpillar excavator systems. As an external wiring harness it routes electrical power and control signals between sensors switches actuators and related machine electrical components to support stable communication and proper equipment operation.
This excavator wiring harness replaces the reference numbers 138-5134 and 1385134. It is designed to provide organized and dependable electrical connections in demanding working environments where vibration dust moisture and temperature changes can affect wiring performance.
Suitable for compatible CAT 320B and 320BL excavators this harness provides a practical replacement when the original wiring has damaged connectors broken wires insulation deterioration corrosion or intermittent electrical faults. A properly matched harness can help restore reliable signal transmission and reduce electrical connection problems during machine operation.
Before installation the original harness connector configuration wire routing connector positions and part number should be checked carefully. Different excavator configurations may use different harness layouts even when the machine model is similar so verification of the original harness is recommended before ordering.
The 320B 320BL external wiring harness is suitable for excavator owners repair workshops machinery dealers and construction equipment spare parts distributors. It provides a replacement solution for maintaining stable electrical system operation and supporting reliable communication between compatible machine components.


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Product name
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harness 296-4617
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item
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value
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Condition
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New
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Applicable Industries
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Building Material Shops, Machinery Repair Shops, Manufacturing Plant, Retail, Construction works , Energy & Mining, Other
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Brand Name
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lanxin
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Packing
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wooden case/carton box
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MOQ
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1 piece
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Warranty
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3-6 months
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Shipment
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Express,Air ,Sea
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Payment
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T/T,Money Gram, Western Union,Paypal
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Condition
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100%New/Renew/Used
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Place of Origin
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China
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Testing situation
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Professional testing before shipment, quality assurance
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Transport
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By sea/air/express (DHL/FEDEX/TNT/UPS/EMS/City-line)
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Payment Term
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L/C,T/T, Western Union, Tradeassurance
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Delivery Time
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1-3 days (depend on order)
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Certification
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RoHS/CE Certificate
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Shipping ways
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Express/Freight/Sea/Train/Air/Road/Postal/Intermodal transport
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Q1: Which excavators is this wiring harness suitable for?
A: It is designed for compatible CAT 320B and 320BL excavator applications. Please verify the original harness and connector configuration before ordering.
Q2: Which part numbers does this wiring harness replace?
A: The listed reference numbers are 138-5134 and 1385134.
Q3: What is the function of an external excavator wiring harness?
A: It connects electrical components such as sensors switches actuators and other machine systems while transmitting power and control signals between them.
Q4: When should the wiring harness be replaced?
A: Replacement may be required when the harness has broken wires damaged connectors insulation wear corrosion short circuits or intermittent electrical connection problems.
Q5: What other Caterpillar electrical parts do you supply?
A: We supply excavator wiring harnesses computer boards monitors ECUs sensors switches relays starter motors alternators and other electrical and electronic spare parts.
