Wiring Harness

2025 Chevrolet Silverado 3500 HD Body Wiring Harness Connector, Chassis Wiring Harness Connector

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2025 Chevrolet Silverado 3500 HD
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  • 1.Electrical - Wiring Harness (6.6L Diesel)
    2025 Chevy Silverado 3500 HD Wiring Harness Diagram 1 - Thumbnail
  • 2.Electrical - Wiring Harness (6.6L GAS)
    2025 Chevy Silverado 3500 HD Wiring Harness Diagram 2 - Thumbnail
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Part No. & Part Description
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Part No. &
Part Description
  • 1
    86595801
    Engine Harness
    • Part Notes: 6.6L Diesel, With Dual Alternators, 2WD
    MSRP: $485.68 Your Price: $308.74
    1
    Add To Cart
  • 1
    86595802
    Engine Harness
    • Part Notes: 6.6L Diesel, Without Dual Alternators, 2WD
    MSRP: $484.01 Your Price: $307.68
    1
    Add To Cart
  • 1
    86595803
    Engine Harness
    • Part Notes: 6.6L Diesel, With Dual Alternators, 4WD
    MSRP: $525.34 Your Price: $333.95
    1
    Add To Cart
  • 1
    86595805
    Engine Harness
    • Part Notes: 6.6L Diesel, Without Dual Alternators, 4WD
    MSRP: $522.55 Your Price: $332.18
    1
    Add To Cart
  • 1
    86595809
    Engine Harness
    • Part Notes: 6.6L GAS, Without Dual Alternators, 2WD
    MSRP: $580.62 Your Price: $369.10
    1
    Add To Cart
  • 1
    86595810
    Engine Harness
    • Part Notes: 6.6L GAS, Without Dual Alternators, 4WD
    MSRP: $626.93 Your Price: $398.53
    1
    Add To Cart
  • 1
    86595811
    Engine Harness
    • Part Notes: 6.6L GAS, With Dual Alternators, 2WD
    MSRP: $708.50 Your Price: $394.99
    1
    Add To Cart
  • 1
    86595812
    Engine Harness
    • Part Notes: 6.6L GAS, With Dual Alternators, 4WD
    MSRP: $641.48 Your Price: $407.78
    1
    Add To Cart
  • 2 Chevy 12731701 Harness
    12731701
    Harness
    Harness Assembly, Engine Wiring
    • Part Notes: 6.6L Diesel, Injector
    • Location: Passenger Side
    • Replaced By: 12747259
    MSRP: $144.74 Your Price: $81.05
    1
    Add To Cart
  • 3 Chevy 12731700 Harness
    12731700
    Harness
    Harness Assembly, Engine Wiring
    • Part Notes: 6.6L Diesel, Injector
    • Location: Driver Side
    • Replaced By: 12736673
    MSRP: $464.96 Your Price: $295.56
    1
    Add To Cart
  • 12719354
    Harness
    Harness Assembly-Fuel Injector Wiring
    • Part Notes: 6.6L GAS, Injector
    • Location: Driver Side
    MSRP: $39.62 Your Price: $25.30
    1
    Add To Cart
  • 12719355
    Harness
    Harness Assembly-Fuel Injector Wiring
    • Part Notes: 6.6L GAS, Injector
    • Location: Passenger Side
    MSRP: $39.62 Your Price: $25.30
    1
    Add To Cart