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  1. Home
  2. GMC Trucks
  3. 2003
  4. Sierra Denali 4WD (New Style)
  5. Electrical

2003 GMC Trucks Sierra Denali 4WD (New Style) electrical parts catalog

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Sensor, wiring harness engine rear (at exh pipe, lm7/5.3t, lr4/4.8v)

  • OEM part number: 25333812
  • Quantity in car: 2
  • Heated oxygen (position 2) (pre converter) (original equipment manufacturer sensor)
  • Usage: CK1, 3 (LR4)

$75.73—79.01

Available in 2 shops

Add to cart

Sensor, wiring harness engine rear (at exh pipe, lm7/5.3t, lr4/4.8v)

  • OEM part number: 19178961
  • Quantity in car: 2
  • Heated oxygen (position 2) (pre converter)
  • Usage: CK1 (LM7, ARL, FWI, GMC, JAN, MSL, NC8, NF2, NF4, NT3), CK1 (LR4, ARL, FWI, GMC, JAN, NF2), CK1 (LM7, LR4, ARL, FWI, GMC, JAN, MSL), CK1, 2 (LM7, LR4, FWI, GMC, JAN, MSL), CK1, 2 (LM7, LR4, L35)

$37.72—99.68

Available in 38 shops

Add to cart

Sensor, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 12565397
  • Quantity in car: 2
  • Heated oxygen (position 2) (pre converter)
  • Usage: CK1, 2, 3 (LQ4, L18), CK1, 2, 3 (LQ4, LQ9, L18)

$51.03—64.58

Available in 38 shops

Add to cart

Sensor, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 12572705
  • Quantity in car: 2
  • Heated oxygen (position 2) (in exhaust manifold/crossover)
  • Usage: CK1, 2, 3 (LQ4, LQ9, L18)

$77.29—146.27

Available in 38 shops

Add to cart

Retainer, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 11561878
  • Quantity in car: 2
  • Secondary oxygen sensor wiring harness (fits 8.0-8.25 diameter hole in 3-7mm thick panel)
  • Usage: CK1, 2 (LM7, LQ4, LR4, L35, NA7, NB6, NC1, NF2), CK1, 2 (LM7, LQ4, LR4, L35, NA7, NB6, NC1, NF2), CK1, 2, 3 (LM7, LQ4, LR4, L35, NA7, NB6, NC1, NC8, NF2, NF4)

$0.73—1.51

Available in 38 shops

Add to cart

Connector, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 88988598
  • Quantity in car: 1
  • Sensor-oxygen (black) (4-way female) (with leads) (square)
  • Usage: CK1, 2 (LM7, LQ4, LR4)

$37.83—77.35

Available in 38 shops

Add to cart

Sensor, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 19178116
  • Quantity in car: 2
  • Heated oxygen (position 3) (post converter)
  • Usage: CK1 (03-06-36-53) (LQ4, LQ9), CK1 (03-06-53) (LQ4, L35)

$42.63—52.24

Available in 38 shops

Add to cart

Sensor RH, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 19178116
  • Quantity in car: 1
  • Heated oxygen (position 3) (post converter)
  • Usage: CK1 (43) (LQ4)

$42.63—52.24

Available in 38 shops

Add to cart

Sensor LH, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 19210423
  • Quantity in car: 1
  • Heated oxygen (position 3) (post converter)
  • Usage: CK1 (43) (LQ4)

$53.49

Available in 1 shop

Add to cart

Sensor LH, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 19178923
  • Quantity in car: 1
  • Heated oxygen (position 3) (post converter)
  • Usage: CK1 (43) (LQ4)

$61.83—66.53

Available in 38 shops

Add to cart

Sensor, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 19209808
  • Quantity in car: 2
  • Heated oxygen (position 3) (post converter)
  • Usage: CK1 (03-06-36-53) (LQ4, LQ9, LU3, LR4)

$49.71—55.71

Available in 38 shops

Add to cart

Sensor RH, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 19209808
  • Quantity in car: 1
  • Heated oxygen (position 3) (post converter)
  • Usage: CK1 (43) (LQ4)

$49.71—55.71

Available in 38 shops

Add to cart

Connector, wiring harness engine rear (at exh pipe, lq4/6.0u)

  • OEM part number: 15305801
  • Quantity in car: 2
  • Sensor-oxygen (black) (4-way male) (with leads)
  • Usage: CK1, 2 (LM7, LR4, LQ4)

$30.68—64.58

Available in 38 shops

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15067419
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, M30, NF2) (EXC 8B0), CK1 (L35, M30) (EXC 8B0), CK1 (L35, M30, K18, NC1)

$659.35

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15067420
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, MG5, NF2) (EXC 8B0), CK1 (L35, MG5) (EXC 8B0), CK1 (L35, MG5, K18, NC1)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15090541
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (LU3, M30, NC1) (EXC 8B0)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15090542
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (LU3, MG5, NC1) (EXC 8B0)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15090543
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (03-53) (LU3, M30, 8B0)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15090544
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (03-53) (LU3, MG5, 8B0)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15124967
  • Quantity in car: 1
  • Engine wiring (coolant level sensor is non-functional for 2004. ok to use harness)
  • Usage: CK1 (LU3, M30) (EXC 8B0), CK1 (03-53) (LU3, M30, 8B0)

$854.82—1603.49

Available in 37 shops

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15124968
  • Quantity in car: 1
  • Engine wiring (coolant level sensor is non-functional for 2004. ok to use harness)
  • Usage: CK1 (03-53) (LU3, MG5, 8B0), CK1 (LU3, MG5, TZ0) (EXC 8B0) (EXPORT)

$370.41

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15192320
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (LU3, M30) (EXC 8B0), CK1 (03-53) (LU3, M30, 8B0)

$830.64—1012.89

Available in 37 shops

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15231842
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (LU3, M30)

$946.36—1124.94

Available in 37 shops

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15231843
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (LU3, MG5)

$347.23

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15281642
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (LU3, M30)

$915.79

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15749179
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, M30, NF2) (EXC 8B0)

$2.50

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15749180
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, MG5, NB6, NF2) (EXC 8B0)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15749181
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, M30, K18, NC1)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15751259
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, M30, NF2, 8B0)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15751260
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, MG5, NF2, 8B0, NB6)

$?

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15751261
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, M30, NF2, 8B0), CK1 (03-53) (L35, M30, 8B0)

$992.23

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15751262
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (L35, MG5, NF2, 8B0), CK1 (03-53) (L35, MG5, 8B0)

$758.76

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15926436
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (03-53) (LU3, M30)

$604.31—628.72

Available in 37 shops

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15192321
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (03-53) (LU3, MG5, 8B0), CK1 (LU3, MG5, TZ0) (EXC 8B0) (EXPORT)

$364.30

Available in 1 shop

Add to cart

Harness, wiring harness engine (lu3/4.3x)

  • OEM part number: 15926437
  • Quantity in car: 1
  • Engine wiring
  • Usage: CK1 (03-53) (LU3, MG5, 8B0), CK1 (LU3, MG5, TZ0) (EXC 8B0)

$527.00

Available in 1 shop

Add to cart

Bolt, wiring harness engine (lu3/4.3x)

  • OEM part number: 11561048
  • Quantity in car: 2
  • Hexagon with flat washer-3/8-16x.625, .82 outside diameter, gm275 steel, gmw3200 finish (engine wiring harness ground)

$2.38—2.93

Available in 38 shops

Add to cart

Retainer, wiring harness engine (lu3/4.3x)

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

$?

Add to cart

Clamp, wiring harness engine (lu3/4.3x)

  • OEM part number: 01470030
  • Quantity in car: 2
  • Worm type (11/16" to 1 5/16") (engine wiring harness clip)

$?

Add to cart

Nut, wiring harness engine (lu3/4.3x)

  • 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

Strap, wiring harness engine (lu3/4.3x)

  • OEM part number: 19130464
  • Quantity in car: 1
  • Tie 0.38" width, bundle diameter 1/16"-1-3/4", 8.27" length, nylon 6/6 fits 0. (oxygen sensor wire)

$0.75—0.80

Available in 2 shops

Add to cart

Bolt, wiring harness engine (lu3/4.3x)

  • OEM part number: 11514623
  • Quantity in car: 1
  • Hexagon with conical washer, m6x1x20 (engine wiring harness clip)

$0.83—1.33

Available in 38 shops

Add to cart

Nut, wiring harness engine (lu3/4.3x)

  • OEM part number: 15735328
  • Quantity in car: 1
  • Engine wiring harness ground
  • Usage: CK1 (L35), CK1 (LU3, L35), CK1, 3 (LU3, L31)

$3.39—5.27

Available in 38 shops

Add to cart

Stud, hex flanged head, wiring harness engine (lu3/4.3x)

  • OEM part number: 11610394
  • Quantity in car: 1
  • 3/8-16x.6, 3/8-16x.75, 1.71 tl, 9.8 steel, gmw3200 (engine wiring harness bracket)

$2.61—3.77

Available in 38 shops

Add to cart

Bracket, wiring harness engine (lu3/4.3x)

  • OEM part number: 12554640
  • Quantity in car: 1
  • Engine wiring harness (temp sensor)
  • Usage: CK1 (LU3)

$3.39—3.81

Available in 2 shops

Add to cart

Bracket, wiring harness engine (lu3/4.3x)

  • OEM part number: 15033674
  • Quantity in car: 1
  • Engine wiring harness (coil) (rear) (used on right-hand side)
  • Usage: CK1 (L35), CK1 (LU3, L35), CK1 (LU3)

$3.03—3.40

Available in 2 shops

Add to cart

Nut, wiring harness engine (lu3/4.3x)

  • OEM part number: 03530297
  • Quantity in car: 1
  • Hex flanged head, m6x1, 5.85thk, 14.2 outside diameter, 10, zor (engine wiring harness bracket)

$?

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 10368723
  • Quantity in car: 1
  • Usage: CK1 (L59)

$454.23—1192.51

Available in 37 shops

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15090610
  • Quantity in car: 1
  • Usage: K1 (L59) (EXC 8B0)

$?

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15092103
  • Quantity in car: 1
  • Usage: C1 (L59) (EXC NW7, 8B0)

$0.38

Available in 1 shop

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15093582
  • Quantity in car: 1
  • Usage: C1 (L59, 8B0)

$?

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15093583
  • Quantity in car: 1
  • Usage: K1 (L59, 8B0)

$?

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15124978
  • Quantity in car: 1
  • Usage: K1 (03-53) (L59)

$596.45

Available in 1 shop

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15124981
  • Quantity in car: 1
  • Usage: C1 (L59)

$459.99

Available in 1 shop

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15192310
  • Quantity in car: 1
  • Usage: CK1 (L59)

$707.50—1067.03

Available in 38 shops

Add to cart

Harness, wiring harness engine (l59/5.3z)

  • OEM part number: 15836408
  • Quantity in car: 1
  • Usage: CK1 (L59)

$359.26—680.66

Available in 38 shops

Add to cart

Nut, wiring harness engine (l59/5.3z)

  • OEM part number: 11609411
  • Quantity in car: 1
  • Hexagon with conical washer, m6x1, 5.7 thick, 16 outside diameter, 9, gmw3200 (engine wiring harness retain)

$0.35—0.41

Available in 38 shops

Add to cart

Bolt, wiring harness engine (l59/5.3z)

  • OEM part number: 11515755
  • Quantity in car: 2
  • Hexagon, m8x1.25x16, 15 thread, 18 outside diameter, 10.9, 7114m (engine wiring harness ground) (together with 12345493 replcs 25534835)

$2.86—4.27

Available in 38 shops

Add to cart

Cover, wiring harness engine (l59/5.3z)

  • OEM part number: 12193918
  • Quantity in car: 1
  • Wiring harness connect
  • Usage: CK1, 2, 3

$3.07—3.45

Available in 2 shops

Add to cart

Nut, wiring harness engine (l59/5.3z)

  • OEM part number: 11502848
  • Quantity in car: 1
  • Hexagon style m5x.8x4.45 (engine wiring harness start mtr. lead)

$0.70—0.94

Available in 38 shops

Add to cart

Cap, wiring harness engine (l59/5.3z)

  • OEM part number: 15909867
  • Engine & fwd lamp wiring harness connect
  • Usage: CK1, 2, 3

$2.98—5.07

Available in 38 shops

Add to cart

Cap, wiring harness engine (l59/5.3z)

  • OEM part number: 15909867
  • Quantity in car: 1
  • Engine wiring harness connect
  • Usage: CK1, 2, 3

$2.98—5.07

Available in 38 shops

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 10368725
  • Quantity in car: 1
  • Usage: K1 (06-36-43-53) (LQ4, LQ9, M32), C157 (06-53) (LQ9, M32)

$530.72

Available in 1 shop

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 15124973
  • Quantity in car: 1
  • Usage: K1 (53) (LQ4, LQ9, M32)

$506.63—605.45

Available in 38 shops

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 15192313
  • Quantity in car: 1
  • Usage: K1 (53) (LQ4, LQ9, M32)

$913.17—1155.33

Available in 37 shops

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 15871898
  • Quantity in car: 1
  • Usage: K1 (43-53) (LQ9, M70, NHT)

$431.08—485.08

Available in 2 shops

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 21993642
  • Quantity in car: 1
  • Usage: C157 (53) (LQ9, M32)

$495.35

Available in 1 shop

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 15871896
  • Quantity in car: 1
  • Usage: C1 (LQ9, M32, M70)

$430.00—710.72

Available in 2 shops

Add to cart

Harness, wiring harness engine (lq9/6.0n)

  • OEM part number: 15871897
  • Quantity in car: 1
  • Usage: K1 (06-36-43-53) (LQ4, LQ9, M32), K1 (43-53) (LQ4, LQ9, M32)

$503.69—1352.50

Available in 38 shops

Add to cart

Nut, wiring harness engine (lq9/6.0n)

  • OEM part number: 11609411
  • Quantity in car: 1
  • Hexagon with conical washer, m6x1, 5.7 thick, 16 outside diameter, 9, gmw3200 (engine wiring harness retain)

$0.35—0.41

Available in 38 shops

Add to cart

Bolt, wiring harness engine (lq9/6.0n)

  • OEM part number: 11515755
  • Quantity in car: 2
  • Hexagon, m8x1.25x16, 15 thread, 18 outside diameter, 10.9, 7114m (engine wiring harness ground) (together with 12345493 replcs 25534835)

$2.86—4.27

Available in 38 shops

Add to cart

Cover, wiring harness engine (lq9/6.0n)

  • OEM part number: 12193918
  • Quantity in car: 1
  • Wiring harness connect
  • Usage: CK1, 2, 3

$3.07—3.45

Available in 2 shops

Add to cart

Nut, wiring harness engine (lq9/6.0n)

  • OEM part number: 11502848
  • Quantity in car: 1
  • Hexagon style m5x.8x4.45 (engine wiring harness start mtr. lead)

$0.70—0.94

Available in 38 shops

Add to cart

Cap, wiring harness engine (lq9/6.0n)

  • OEM part number: 15909867
  • Engine & fwd lamp wiring harness connect
  • Usage: CK1, 2, 3

$2.98—5.07

Available in 38 shops

Add to cart

Cap, wiring harness engine (lq9/6.0n)

  • OEM part number: 15909867
  • Quantity in car: 1
  • Engine wiring harness connect
  • Usage: CK1, 2, 3

$2.98—5.07

Available in 38 shops

Add to cart

Spark plug, spark plug wiring (lr4/4.8v, lm7/5.3t, lq4/6.0u, l59/5.3z, lq9/6.0n)

  • OEM part number: 12621258
  • Quantity in car: 8
  • (gap 0.040) (do not change spark plug gap from .040) (iridium)
  • Usage: CK1 (LR4)

$5.60—5.90

Available in 2 shops

Add to cart

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