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C3977357 XCMG GR2605 motor grader ground wire
– Part Number: C3977357 (3977357 / 3977357F)
– Description: WIRE, GROUND / Grounding Strap
– Material: Tinned copper braid (high conductivity, anti-oxidation, flexible, vibration-resistant)
– Structure: Braided copper strap with tinned copper terminals
– Dimensions: Length ~160mm, Width ~14mm, Thickness ~1mm
– Cross Section: ~16mm² (for high-current engine circuits)
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C3977357 XCMG GR2605 motor grader ground wire
C3977357 (3977357 / 3977357F) is a genuine Cummins ground wire (grounding strap). It provides a stable, low-resistance return path for the engine’s electrical system, ensuring reliable starting, stable operation of the starter, alternator, sensors, and ECU. It eliminates static electricity and electromagnetic interference, prevents leakage and circuit faults, and is widely used in commercial vehicles, construction machinery, and generator sets.
Technical Parameters
– Part Number: C3977357 (3977357 / 3977357F)
– Description: WIRE, GROUND / Grounding Strap
– Material: Tinned copper braid (high conductivity, anti-oxidation, flexible, vibration-resistant)
– Structure: Braided copper strap with tinned copper terminals
– Dimensions: Length ~160mm, Width ~14mm, Thickness ~1mm
– Cross Section: ~16mm² (for high-current engine circuits)
– Weight: Approx. 0.002kg
– Rated Current: ≥150A
– Contact Resistance: ≤50mΩ
– Temperature Range: -40℃ to 125℃
– Torque: M8 bolt 10–15N·m
– Standards: Cummins OEM, ISO 9001, TS16949, SAE
Application
Applicable Engines
– Foton Cummins: F2.8, F3.8, ISF3.8, A10, D6I9.9 Series
– Dongfeng Cummins: 4B3.9, 6BT5.9, ISDe, ISB Series
– Displacement: 2.8L–9.9L light/medium/heavy-duty engines
Equipment
– Commercial Vehicles: Foton Aumark, Ollin, Dongfeng Tianjin, light/medium/heavy trucks
– Construction Machinery: Excavators, loaders, forklifts, air compressors
– Generator Sets: 50–200kW Cummins 4B/6B/ISF diesel gensets
– Industrial: Pumps, oilfield equipment, marine auxiliaries, special vehicles
Mounting Location
Engine block / flywheel housing ↔ frame / battery negative / chassis rail; alternator / starter ↔ engine ground; ECU / sensor signal ground. Install on clean, bare metal (paint/rust-free) for low-resistance connection.
Installation & Maintenance
1. Safety: Disconnect battery negative to avoid short circuits.
2. Clean: Sand ground surfaces to bright metal; remove oil, rust, paint.
3. Inspect: Ensure no broken strands, loose/corroded terminals.
4. Install: Torque M8 bolts to 10–15N·m evenly.
5. Conductivity: Apply conductive grease to reduce resistance.
6. Test: Resistance <0.5Ω; check for no overheating, no voltage drop.
7. Maintain: Inspect every 2–4 months/year; retorque, re-clean, replace C3977357 if damaged.
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