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Wiring Harness 275-7004

Wiring Harness
January 30, 2026
Category Connection: Engine Wiring Harness
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Tags:
#wiring harness assembly #diesel engine wiring harness #diesel wiring harness
Brief: Our team walks you through how the WESPC Wiring Harness 275-7004 performs as the critical electrical backbone in Caterpillar 320D and 323D hydraulic excavators. You'll see a detailed explanation of its installation, its role in connecting the operator cab to the main platform, and how it ensures reliable power distribution and signal transmission in demanding construction environments.
Related Product Features:
  • Specifically engineered as the main platform and cabin internal wiring harness for Caterpillar 320D and 323D series excavators.
  • Compatible with multiple 320D variants including FM, GC, L, LRR, RR models and the 323D L, supporting C6.4 and C6.6 engines.
  • Constructed with AWG 18 stranded tinned oxygen-free copper conductors for superior conductivity and corrosion resistance.
  • Features IP67-rated sealed connectors using Deutsch, Molex, AMP, and JAE technologies for protection against dust and moisture.
  • Operates reliably in a wide temperature range from -30°C to +85°C, suitable for harsh construction site conditions.
  • Built with multi-layer insulation including heat-resistant silicone rubber, CSPE, and XLPE for durability and safety.
  • Meets SAE-J1939 standards for integration into CAN-bus communication networks in heavy-duty equipment.
  • Manufactured with premium materials certified to ISO9001, RoHS, and other international standards for quality assurance.
FAQs:
  • Which Caterpillar excavator models is the WESPC Wiring Harness 275-7004 compatible with?
    This wiring harness is specifically designed for Caterpillar 320D and 323D series hydraulic excavators, including the 320D, 320D FM, 320D GC, 320D L, 320D LRR, 320D RR, and 323D L models.
  • What are the key environmental protection features of this wiring harness?
    The harness features IP67-rated sealed connectors that provide complete protection against dust and moisture ingress. It also has a wide operating temperature range from -30°C to +85°C and uses corrosion-resistant materials suitable for harsh construction environments.
  • What certifications and standards does the WESPC Wiring Harness 275-7004 meet?
    This wiring harness is manufactured with materials certified to ISO9001, RoHS, UL, CE, and VDE international standards. It also meets SAE-J1939 standards for CAN-bus communication networks in heavy-duty construction equipment.
  • What type of electrical systems and engines is this harness compatible with?
    The harness is designed for 24V DC heavy-duty construction equipment electrical systems and is compatible with Caterpillar C6.4 and C6.6 diesel engines used in the 320D and 323D excavator series.
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