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  1. Home
  2. GMC Trucks
  3. 2012
  4. Sierra 2500 HD Extended Cab 4WD
  5. Electrical

2012 GMC Trucks Sierra 2500 HD Extended Cab 4WD electrical parts catalog

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Retainer, wiring harness engine (l96/6.0g)

  • OEM part number: 21075686
  • Quantity in car: 2
  • Push pinion with seal, fits 8.0-8.25 diameter hole in 3-7mm thick panel (secondary oxygen sensor wiring harness)

$?

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25807565
  • Quantity in car: 1
  • Usage: K2, 3 (03-43-53) (LY6, MYD, NQF, ZW9)

$350.68—394.61

Available in 2 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25830304
  • Quantity in car: 1
  • Engine wiring (labeled 25830304)
  • Usage: K2, 3 (03-43-53) (LY6, MYD, NQG, ZW9)

$364.84—1076.81

Available in 38 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25830304
  • Quantity in car: 1
  • Usage: K2, 3 (03-43-53) (LY6, MYD, NQG, ZW9)

$364.84—1076.81

Available in 38 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25830307
  • Quantity in car: 1
  • Usage: K2, 3 (03-43-53) (LY6, MYD, E63, NQG)

$357.12—1159.93

Available in 38 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25830308
  • Quantity in car: 1
  • Usage: K2, 3 (03-43-53) (LY6, MYD, E63, NQF)

$352.42—1186.98

Available in 38 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25830309
  • Quantity in car: 1
  • Usage: C2, 3 (03-43-53) (LY6, MYD, E63)

$330.18—625.53

Available in 37 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25863879
  • Quantity in car: 1
  • Usage: C2, 3 (43-53) (LY6, MYD, ZW9)

$?

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25884911
  • Quantity in car: 1
  • Usage: K2, 3 (43-53) (LY6, MYD, NQG, ZW9)

$328.61—713.91

Available in 38 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25884912
  • Quantity in car: 1
  • Usage: C2, 3 (43-53) (LY6, MYD, ZW9)

$564.41—673.75

Available in 37 shops

Add to cart

Harness, wiring harness engine (l96/6.0g)

  • OEM part number: 25884913
  • Quantity in car: 1
  • Usage: K2, 3 (43-53) (LY6, MYD, NQF, ZW9)

$332.30—586.16

Available in 2 shops

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 11561674
  • Quantity in car: 1
  • Hexagon with flat washer, m6x1x20, 12 thread, 24 outside diameter, 9.8, gmw3359, m-point (engine wiring harness clip)

$0.34—0.36

Available in 2 shops

Add to cart

Nut, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 11609467
  • Quantity in car: 1
  • Hexagon, m5x0.8, 4.55 thick, 5 steel, gmw3200 (engine wiring harness start mtr. lead)

$2.42—2.67

Available in 2 shops

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 11609619
  • Quantity in car: 2
  • Hexagon with flat washer-m10x1.5x16, 20 outside diameter, 10.9 steel, gmw3200 finish (auxiliary battery negative cable)

$2.42—2.90

Available in 38 shops

Add to cart

Harness LH, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12638156
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK2, 3 (LGH, LML)

$68.81

Available in 1 shop

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12638158
  • Quantity in car: 1
  • Engine wiring (locator c)
  • Usage: CK2, 3 (LGH, LML)

$3.00—33.65

Available in 2 shops

Add to cart

Harness LH, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12639819
  • Quantity in car: 1
  • Engine wiring (jumper harness) (labeled 12639819)
  • Usage: CK2, 3 (LGH, LML)

$57.73—66.20

Available in 2 shops

Add to cart

Harness LH, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12644912
  • Quantity in car: 1
  • Engine wiring (at engine) (labeled 12644912)
  • Usage: CK2, 3 (LGH, LML)

$60.01—117.18

Available in 38 shops

Add to cart

Harness LH, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12644912
  • Quantity in car: 1
  • Engine wiring (at engine)
  • Usage: CK2, 3 (LGH, LML)

$60.01—117.18

Available in 38 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12645359
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK2, 3 (LGH, LML)

$309.62—381.74

Available in 37 shops

Add to cart

Harness RH, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12646767
  • Quantity in car: 1
  • Engine wiring (common left-hand)
  • Usage: CK2, 3 (LGH, LML)

$38.47—56.87

Available in 2 shops

Add to cart

Bracket, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 15045897
  • Quantity in car: 1
  • Engine wiring harness retain (front of dash)
  • Usage: CK2, 3 (03-43-53) (LGH, LML, MW7)

$3.39—3.81

Available in 38 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943134
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, K76, NQG)

$311.67

Available in 1 shop

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943138
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, KG7, NQG)

$294.29

Available in 1 shop

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943139
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, K76, NQF)

$227.27

Available in 1 shop

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943140
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, KG7, NQF)

$232.47

Available in 1 shop

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943141
  • Quantity in car: 1
  • Engine wiring
  • Usage: C2, 307, 309 (LGH, LML, MW7, K76)

$269.41

Available in 1 shop

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943142
  • Quantity in car: 1
  • Engine wiring
  • Usage: C2, 307, 309 (LGH, LML, MW7, KG7)

$234.77

Available in 1 shop

Add to cart

Wire, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 20943143
  • Quantity in car: 1
  • Engine wiring harness
  • Usage: CK2, 3 (LGH, LML)

$11.85—15.55

Available in 38 shops

Add to cart

Nut, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 21011332
  • Quantity in car: 2
  • Hexagon stamped ty df flange 14 (engine wiring harness retain)

$3.17—4.03

Available in 38 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 22779634
  • Quantity in car: 1
  • Engine wiring
  • Usage: C2, 307, 309 (LGH, LML, MW7, KG7)

$251.59—476.63

Available in 37 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 22779635
  • Quantity in car: 1
  • Engine wiring
  • Usage: C2, 307, 309 (LGH, LML, MW7, K76)

$281.48—524.14

Available in 37 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 22779636
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, KG7, NQF)

$250.43—479.15

Available in 37 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 22779637
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, K76, NQF)

$246.80—467.57

Available in 37 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 22779638
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, KG7, NQG)

$317.94—602.37

Available in 37 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 22779642
  • Quantity in car: 1
  • Engine wiring
  • Usage: K2, 307, 309 (LGH, LML, MW7, K76, NQG)

$330.51—404.45

Available in 37 shops

Add to cart

Stud, hexagon, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 11519792
  • Quantity in car: 2
  • M8x1.25x16, m8x1.25x20, 8.8, gmw14cpt (engine wiring harness clip)

$2.57—2.90

Available in 38 shops

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 11588711
  • Quantity in car: 3
  • Hex flanged head, m6x1x16, 10 thread, 14.2 outside diameter, 8.8 steel, gmw3359 (turbocharge heat shield)

$0.63—4.63

Available in 39 shops

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 11588736
  • Quantity in car: 2
  • Hex flanged head, m10x1.5x20, 10 thread, 22.3 outside diameter, 10.9, gmw3359 (engine wiring harness)

$1.12—5.26

Available in 39 shops

Add to cart

Harness LH, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12639819
  • Quantity in car: 1
  • Engine wiring (jumper harness)
  • Usage: CK2, 3 (LGH, LML)

$57.73—66.20

Available in 2 shops

Add to cart

Bracket, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12642312
  • Quantity in car: 1
  • Engine wiring harness (bracket retains vps & rps sensors)
  • Usage: CK2, 3 (LGH, LML)

$21.85—33.38

Available in 37 shops

Add to cart

Bracket, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12643730
  • Quantity in car: 1
  • Engine wiring harness (locator c;brckt retains harnss bundle that rtes to electric control module)
  • Usage: CK2, 3 (LGH, LML)

$16.86—18.98

Available in 38 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12646767
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK2, 3 (LGH, LML)

$38.47—56.87

Available in 2 shops

Add to cart

Harness, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 12647115
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK2, 3 (LGH, LML)

$34.88

Available in 1 shop

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 94009649
  • Quantity in car: 2
  • Engine wiring harness (m8x1.25x20)
  • Usage: CK2, 3 (LGH, LML)

$0.98—1.31

Available in 2 shops

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 94012115
  • Quantity in car: 3
  • Turbocharge heat shield (m6x19.5)
  • Usage: CK2, 3 (LML, LGH)

$2.24—2.41

Available in 2 shops

Add to cart

Bolt, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 94012131
  • Quantity in car: 9
  • Engine front cover (m8x 35 flange)
  • Usage: CK2, 3 (LML, LGH)

$1.10—1.58

Available in 37 shops

Add to cart

Strap, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 94025647
  • Quantity in car: 1
  • Engine wiring harness (250mm long) (type a)
  • Usage: CK2, 3 (LGH, LML)

$0.28—3.95

Available in 38 shops

Add to cart

Clip, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 97329630
  • Quantity in car: 4
  • Engine wiring harness (locator a)
  • Usage: CK2, 3 (LGH, LML)

$2.66—3.12

Available in 38 shops

Add to cart

Nut, wiring harness engine (lgh/6.6l, lml/6.6-8)

  • OEM part number: 97368853
  • Quantity in car: 8
  • Diesel glow plug wiring harness
  • Usage: CK2, 3 (LGH, LML)

$2.24—2.41

Available in 2 shops

Add to cart

Spark plug, spark plug wiring (l96/6.0g, l9h/6.2-2)

  • OEM part number: 12621258
  • Quantity in car: 8
  • (gap 0.040) (do not change spark plug gap from .040) (iridium)
  • Usage: CK2, 3 (LY6), CK2, 3 (L96)

$5.60—5.90

Available in 2 shops

Add to cart

Wire, spark plug wiring (l96/6.0g, l9h/6.2-2)

  • OEM part number: 19206446
  • Quantity in car: 8
  • Spark plug
  • Usage: CK2, 3 (LY6), CK2, 3 (L96)

$17.28—19.45

Available in 2 shops

Add to cart

Wire kit, spark plug wiring (l96/6.0g, l9h/6.2-2)

  • OEM part number: 19206447
  • Quantity in car: 1
  • Usage: CK2, 3 (LY6), CK2, 3 (L96)

$70.56—73.61

Available in 2 shops

Add to cart

Spark plug, spark plug wiring (l20/4.8a, lmg/5.3-0, lc9/5.3-7, lz1/6.0j, l94/6.2f)

  • OEM part number: 12621258
  • Quantity in car: 8
  • (gap 0.040) (do not change spark plug gap from .040) (iridium)
  • Usage: CK2, 3 (LY6), CK2, 3 (L96)

$5.60—5.90

Available in 2 shops

Add to cart

Wire, spark plug wiring (l20/4.8a, lmg/5.3-0, lc9/5.3-7, lz1/6.0j, l94/6.2f)

  • OEM part number: 19206446
  • Quantity in car: 8
  • Spark plug
  • Usage: CK2, 3 (LY6), CK2, 3 (L96)

$17.28—19.45

Available in 2 shops

Add to cart

Wire kit, spark plug wiring (l20/4.8a, lmg/5.3-0, lc9/5.3-7, lz1/6.0j, l94/6.2f)

  • OEM part number: 19206447
  • Quantity in car: 1
  • Usage: CK2, 3 (LY6), CK2, 3 (L96)

$70.56—73.61

Available in 2 shops

Add to cart

Nut, block engine harness junction

  • OEM part number: 11509226
  • Hexagon with conical washer, m8x1.25, 7.5thk, 19 outside diameter, 9, zinc (chassis rear wiring harness junction block lead)

$2.76—3.46

Available in 38 shops

Add to cart

Bolt, block engine harness junction

  • OEM part number: 11561674
  • Quantity in car: 3
  • Hexagon with flat washer, m6x1x20, 12 thread, 24 outside diameter, 9.8, gmw3359, m-point (engine wiring harness fuse block bracket)

$0.34—0.36

Available in 2 shops

Add to cart

Fuse, block engine harness junction

  • OEM part number: 12092075
  • Quantity in car: 6

$0.30—1.73

Available in 40 shops

Add to cart

Relay, block engine harness junction

  • OEM part number: 12177236
  • Quantity in car: 2
  • Usage: CK1, 2, 3, CK1, 2, 3

$4.95—5.12

Available in 2 shops

Add to cart

Fuse, block engine harness junction

  • OEM part number: 12191645
  • Quantity in car: 1

$0.46—1.04

Available in 39 shops

Add to cart

Relay, block engine harness junction

  • OEM part number: 12193601
  • Quantity in car: 1
  • Multiuse (black) (used with connector 15306045 without brackets 5-way male)
  • Usage: CK1, 2, 3

$26.39

Available in 1 shop

Add to cart

Relay, block engine harness junction

  • OEM part number: 12193601
  • Quantity in car: 1
  • Air conditioning compressor (black) (used with connector 15306045 without brackets 5-way male)
  • Usage: CK1, 2, 3
  • A Service Bulletin Applies To This Part Number. Per Gm Service Policies And Procedures, Failure To Follow Bulletin Information May Result In The Rejection Of A Warranty Claim.

$26.39

Available in 1 shop

Add to cart

Relay, block engine harness junction

  • OEM part number: 12193602
  • Quantity in car: 1
  • Usage: CK1, 2, 3 (EXC E29)

$0.38

Available in 1 shop

Add to cart

Relay, block engine harness junction

  • OEM part number: 12193606
  • Quantity in car: 1
  • Usage: CK2, 3 (LMM), CK2, 3 (LMM), CK2, 3 (LMM), CK1, 2, 3 (L92), CK1, 2, 3 (LC9, LH6, LMG, LU3, LY2, LY5, LY6, L76), CK1, 2, 3 (03-43-53) (LC9, LH6, LMG, LU3, LY2, LY5, LY6, L76, L92), CK1, 2, 3, CK1, 2, 3, CK2, 3 (LY6), CK1, 2, 3 (03-43-53) (LC9, LH6, LMG, LU3, LY2, LY5, LY6, L76, L92), CK1, 2, 3 (03-43-53) (LU3, LY6) (EXC E29), CK2, 3 (03-43-53) (LY6, MYD), CK2, 3 (03-43-53) (LY6, MYD), CK1, 2, 3 (03-43-53) (LU3, LY6) (EXC E29), CK1, 2, 3 (03-43-53) (LU3, LY6) (EXC E29), CK1, 2, 3 (LMM), CK1, 2, 3 (LMM), CK1, 2, 3 (LU3, LY6, L96), CK1, 2, 3 (LC9, LMG, LZ1, L20, L9H, L94), CK1, 2, 3 (LU3, LY6, L96), CK1, 2, 3 (03-43-53) (LU3, LY6, L96) (EXC E29), CK1, 2, 3 (03-43-53) (LU3, LY6, L96) (EXC E29), CK1, 2, 3, CK1, 2, 3, CK1, 2, 3, C1, 2, 3 (03-43-53) (LU3, LY6) (EXC E29), CK1, 2, 3, CK1, 2, 3 (03-43-53) (LC9, LH6, LMG, LY2, LY5, L76, L9H), CK1, 2, 3 (03-43-53) (LU3, LY6) (EXC E29)

$14.05

Available in 1 shop

Add to cart

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