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WESPC Wiring Harness 121-1036 for Cater 311B and 312B Hydraulic Excavators
This premium wiring harness provides critical electrical connectivity between the main chassis and external cabin components for Cater 311B and 312B hydraulic excavators.
Brand Name
WESPC
Place of Origin
China
Part Number
121-1036
After-sales Service
Video Technical Support, Online Support
Marketing Type
Ordinary Product
Certificate
ISO9001
Warranty
1 Year
Stock
Yes
Application
The 121-1036 external cabin wire harness is specifically engineered for Cater 311B and 312B hydraulic excavators, providing critical electrical connectivity between the main chassis and external cabin components. This comprehensive wiring assembly transmits signals and electrical power to essential operator interface systems including the monitor display panel, joystick controls, seat switches, wiper motors, cab lighting, and safety interlock systems. The harness serves as the primary electrical backbone for the excavator's upper structure, connecting the engine compartment control modules to the operator cab instrumentation and control devices. This component is essential for maintaining complete machine functionality, enabling proper communication between the engine control module (ECM), hydraulic system sensors, and operator interface panels in heavy-duty construction environments where reliability and durability are critical.
Technical Specifications
Part numbers: 121-1036, 1211036 (alternative designation)
Compatible models: Cater 311B, 312B, 312B L excavators
Harness type: External cabin/chassis main wiring harness
Physical dimensions: Approximately 40 cm × 35 cm × 25 cm packaging size
Weight: 5.0-8.0 kg complete assembly depending on configuration
Cable configuration: Multi-conductor assembly with 24V DC power distribution
Connector types: Deutsch, AMP, and Cater-specific sealed connectors
Wire gauge range: 18 AWG to 12 AWG depending on circuit amperage requirements
Operating voltage: 24V DC (standard excavator electrical system)
Operating temperature range: -30°C to +80°C continuous service
Protection rating: IP67 minimum for external environmental exposure
Manufactured from high-grade automotive-specification copper conductors with advanced insulation materials, the 121-1036 wiring harness delivers exceptional electrical conductivity and durability in severe-service construction environments. The harness features premium-grade PVC or cross-linked polyethylene (XLPE) insulation rated for 105°C continuous operation, providing superior resistance to hydraulic oil, diesel fuel, and UV radiation exposure. Each conductor is color-coded per Cater specifications (OR for orange power circuits, PU for purple control signals, etc.) ensuring accurate installation and troubleshooting.
Interchange Part Numbers
Primary reference: Cater 121-1036, 1211036
Alternative designation: 1211036 (continuous numbering format)
Compatible equipment: Cater 311B, 312B, 312B L hydraulic excavators
Related harness assemblies: 150-7009, 167-3494, 153-2555, 150-6989
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company
Year Established:
2019
Total Annual:
300,0000-450,0000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
WESPC(Dongguan)Tech Co., Ltd. is a wholly-owned subsidiary of WESPC Hong Kong.
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