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The 291-7590 chassis wiring harness is an important electrical connection assembly for compatible Caterpillar excavators. Unlike an engine-specific harness it is used to route electrical power and control signals through the machine chassis and connect related electrical components and control circuits.
This wiring harness replaces the reference numbers 291-7590 and 2917590. It is designed for compatible CAT 320D and E320D excavator applications with the corresponding C6.4 engine configuration. The harness helps maintain stable connections between machine electrical components and supports reliable communication across different operating systems.
A damaged chassis harness can result in intermittent electrical faults warning signals communication problems or loss of power to related components. Common causes include broken wires connector damage insulation deterioration corrosion short circuits and prolonged exposure to vibration heat dust and moisture.
Before installation the original harness should be carefully compared for connector locations wire routing terminal configuration branch layout and mounting points. Similar excavator models may use different electrical harness configurations so the original part number and machine specification should be verified before ordering.
The 320D E320D chassis wiring harness is suitable for excavator owners repair workshops machinery dealers and construction equipment parts distributors. It provides a practical replacement solution for restoring dependable electrical connections and supporting stable operation of compatible CAT excavators.
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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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Showroom Location
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None
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Video outgoing-inspection
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Provided
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Machinery Test Report
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Provided
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Marketing Type
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Ordinary Product
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Place of Origin
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China
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Guangdong
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Brand Name
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lanxin
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Warranty
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1 Year
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Product name
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harness 291-7590
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Q1: Which excavators is this chassis wiring harness suitable for?
A: It is designed for compatible CAT 320D and E320D excavators using the corresponding C6.4 engine configuration. Please verify the original harness before ordering.
Q2: Which part numbers does this harness replace?
A: The listed reference numbers are 291-7590 and 2917590.
Q3: Is this an engine wiring harness?
A: This product is described as a chassis wiring harness. It primarily serves machine-side electrical connections and should not be assumed to be interchangeable with the engine wiring harness.
Q4: What problems can a damaged chassis harness cause?
A: Damaged wiring may cause intermittent electrical connections warning signals communication faults power interruptions or unstable operation of connected machine systems.
Q5: What other CAT excavator electrical parts do you supply?
A: We supply chassis wiring harnesses engine wiring harnesses hydraulic pump harnesses computer boards monitors ECUs sensors switches relays starter motors alternators and other excavator electrical spare parts.
