WESPC Wiring Harness 122-1486 For Cater 3406E 3456 C15 C16 C18 Diesel Engines

WESPC Wiring Harness 122-1486 for Cater 3406E 3456 C15 C16 C18 diesel engines

Application:

The 122-1486 wiring harness is specifically engineered as a fuel injector wiring harness for Cater 3406E, 3456, C15, C16, and C18 diesel engines. These high-displacement powerplants are extensively deployed in wheel loaders (980G, 980G II, 988G), wheel tractor-scrapers (621B/G, 623B/G, 627E/G, 651B, 657B), excavators (385B, 5090B), articulated dump trucks (735, 740, D350E II, D400E II), track-type tractors (D8N, D8R II), and generator sets (SR4, SR4B, PM3456) . The harness functions as the internal injector harness connecting the electronic control module (ECM) to the electronic unit injectors (EUI), transmitting precise electrical signals for fuel injection timing and duration in engines operating under high-load construction, mining, and power generation applications .

Technical specifications:

Part numbers: 122-1486, 1221486, CA1221486 
Harness type: Internal fuel injector wiring harness (EUI harness) 
Engine compatibility: Cater 3406E, 3456, C-15, C-16, C-18, C15, C16, C18 
Material: Alloy mixed metal construction with high-temperature insulation 
Operating voltage: 24V DC (standard Cater electrical system)
Operating temperature range: -40°C to +125°C continuous service
Connector types: Sealed AMP/Deutsch connectors with gold-plated pins
Wire gauge: 16-18 AWG primary conductors with twisted pair shielding for signal integrity 
Physical dimensions: Approximately 400 mm × 300 mm × 50 mm (varies by application)
Weight: 2.0-3.0 kg depending on configuration
Protection rating: IP67 for dust and moisture resistance
Circuit configuration: 6-cylinder injector circuits with integrated sensor connections

Material & performance features:

Manufactured from premium-grade alloy mixed metal conductors with high-temperature resistant insulation rated for 125°C continuous operation, the 122-1486 harness delivers exceptional electrical conductivity and durability in severe-service engine environments . The wiring features advanced fluoropolymer or cross-linked polyethylene insulation that resists degradation from engine oil, diesel fuel, coolant vapors, and ozone exposure. Precision-twisted wire pairs for injector circuits minimize electromagnetic interference (EMI) and ensure signal integrity for precise fuel injection control .

Interchange part numbers:

Primary references: 122-1486, 1221486, CA1221486 
Alternative designation: 425-6526, 4256526 (supersession/update) 
OEM manufacturer: Cater Inc.
Aftermarket equivalents: PAI 350532OEM