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  1. Home
  2. Chevrolet Trucks
  3. 1999
  4. Express 3500
  5. Electrical

1999 Chevrolet Trucks Express 3500 electrical parts catalog

Add this car in your garage and make future searches easy.

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12129024
  • Quantity in car: 1
  • Engine control module wiring harness connect (reduction) (use with 32-way connect)
  • Usage: G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35)

$4.90—5.51

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12129025
  • Quantity in car: 3
  • Inline-to electronic brake module (32-way female) (typically uses 12084912 terminal)
  • Usage: G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35)

$9.13—17.33

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12129025
  • Quantity in car: 3
  • Usage: G1, 2, 3

$9.13—17.33

Available in 38 shops

Add to cart

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12129028
  • Quantity in car: 2
  • Engine control module wiring harness connect (gray) (32-way)
  • Usage: G1, 2, 3, G1, 2, 3

$3.45—3.89

Available in 2 shops

Add to cart

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12129030
  • Quantity in car: 1
  • Engine control module wiring harness connect (gray) (strain relief)
  • Usage: G1, 2, 3, G1, 2, 3

$3.55—3.89

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12129081
  • Quantity in car: 1
  • Inline-to instrument panel harness (from power seat wiring) (black) (2-way female) (without leads) (metri-pack 280)
  • Usage: G1, 2, 3 (AG1), G1, 2, 3 (AG2)

$2.64—3.07

Available in 38 shops

Add to cart

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12129811
  • Quantity in car: 1
  • Usage: G1, 2, 3 (L29, L31, L30, L35), G1, 2, 3 (L29, L31, L30, L35), G3 (L29, L31) (EXC UD4, WX7, Z49, 7Y4, 8S8, 9H8, 9S6), G3 (L29, L31) (EXC UD4, WX7, Z49, 7Y4, 8S8, 9H8, 9S6)

$?

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12146121
  • Quantity in car: 1
  • Coil-ignition (brown) (3-way female) (without leads)
  • Usage: G1, 2, 3 (L29, L30, L31, L35)

$2.31—2.50

Available in 2 shops

Add to cart

Block, wiring harness engine (l29/7.4j)

  • OEM part number: 12146281
  • Quantity in car: 1
  • Usage: G1, 2, 3

$11.50—13.14

Available in 38 shops

Add to cart

Lock, wiring harness engine (l29/7.4j)

  • OEM part number: 12146283
  • Quantity in car: 1
  • Terminal-wiring secondary (gray) (5-row retention)
  • Usage: G1, 2, 3

$1.08—1.21

Available in 2 shops

Add to cart

Lock, wiring harness engine (l29/7.4j)

  • OEM part number: 12146284
  • Quantity in car: 1
  • Terminal-wiring secondary (gray) (3-row retention)
  • Usage: G1, 2, 3

$2.99—3.37

Available in 2 shops

Add to cart

Cover, wiring harness engine (l29/7.4j)

  • OEM part number: 12146286
  • Quantity in car: 1
  • Usage: G1, 2, 3

$13.82—14.87

Available in 2 shops

Add to cart

Terminal, wiring harness engine (l29/7.4j)

  • OEM part number: 12146564
  • Quantity in car: 1
  • Wiring (4-way female) (with 9 holes) (convenience center)
  • Usage: G1, 2, 3

$13.26—14.92

Available in 2 shops

Add to cart

Lock, wiring harness engine (l29/7.4j)

  • OEM part number: 12146805
  • Quantity in car: 1
  • Terminal-wiring secondary (gray) (acts like a hinged 2-way connect body;snaps over terminals)
  • Usage: G1, 2, 3

$2.99—3.37

Available in 2 shops

Add to cart

Lock, wiring harness engine (l29/7.4j)

  • OEM part number: 12146835
  • Quantity in car: 1
  • Terminal-wiring secondary (blue) (4-row retention)
  • Usage: G1, 2, 3

$?

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12146836
  • Quantity in car: 4
  • Power distributor block (30-way f without leads) (metri-pack 280 flex lock)
  • Usage: G1, 2, 3

$11.94—14.48

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12160490
  • Quantity in car: 1
  • Inline-to trans (11-way f) (without leads) (micro-pack 100w)
  • Usage: G1, 2, 3 (MT1)

$?

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12160782
  • Quantity in car: 1
  • Inline-to trans (20-way m) (without leads)
  • Usage: G1, 2, 3 (M30)

$6.04—10.58

Available in 38 shops

Add to cart

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12160846
  • Quantity in car: 1
  • Engine control module wiring harness connect (black) (32-way f)
  • Usage: G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (WX7) (EXPORT), G1, 2, 3 (WX7) (EXPORT)

$?

Add to cart

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12160847
  • Quantity in car: 1
  • Engine control module wiring harness connect (black) (for 32-way engine control module connect)
  • Usage: G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35)

$3.89—4.30

Available in 2 shops

Add to cart

Retainer, wiring harness engine (l29/7.4j)

  • OEM part number: 12160848
  • Quantity in car: 1
  • Engine control module wiring harness connect (24-way)
  • Usage: G1, 2, 3, G1, 2, 3

$2.49—2.80

Available in 2 shops

Add to cart

Cover, wiring harness engine (l29/7.4j)

  • OEM part number: 12162365
  • Quantity in car: 1
  • Multiuse relay & fuse (upper) (without label)
  • Usage: G1, 2, 3 (L65, L29, L30, L31, L35)

$10.58—19.28

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12167144
  • Quantity in car: 1
  • Inline-to electronic brake module (black) (2-way female) (with leads) (metri-pack 630 p2s)
  • Usage: G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35)

$18.78—38.15

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12176348
  • Quantity in car: 1
  • Inline-to instrument panel harness (36-way m) (without leads) (metri-pack 150, 280, 630 sealed)
  • Usage: G1, 2, 3

$?

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12176428
  • Quantity in car: 1
  • Module-vehicle cont (black) (2-way f) (without leads) (metri-pack 280)
  • Usage: G3 (L29)

$0.49

Available in 1 shop

Add to cart

Relay, wiring harness engine (l29/7.4j)

  • OEM part number: 12177236
  • Quantity in car: 1
  • Usage: G1, 2, 3 (L29, L30, L31, L35)

$4.95—5.12

Available in 2 shops

Add to cart

Relay, wiring harness engine (l29/7.4j)

  • OEM part number: 12177236
  • Quantity in car: 1
  • Secondary air injection pump (4 terminal) (gray) (spst 280 mini) (4-way) (square case) (with resistor)
  • Usage: G3 (L29, K19, NB6)

$4.95—5.12

Available in 2 shops

Add to cart

Relay, wiring harness engine (l29/7.4j)

  • OEM part number: 12177236
  • Quantity in car: 1
  • Fuel pump (4 terminal) (gray) (spst 280 mini) (4-way) (square case) (with resistor)
  • Usage: G1, 2, 3 (L29, L30, L31, L35)

$4.95—5.12

Available in 2 shops

Add to cart

Cover, wiring harness engine (l29/7.4j)

  • OEM part number: 12186164
  • Quantity in car: 1
  • Usage: G1, 2, 3 (L65, L29, L30, L31, L35)

$?

Add to cart

Relay, wiring harness engine (l29/7.4j)

  • OEM part number: 12193602
  • Quantity in car: 1
  • Usage: G1, 2, 3 (L29, L30, L31, L35)

$0.38

Available in 1 shop

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305839
  • Quantity in car: 2
  • Inline-to oxygen sensor (with leads) (black) (4-way male)
  • Usage: G1, 2, 3 (L29, L31, L35), G1, 2, 3 (L29, L31, L35)

$36.69—45.02

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305872
  • Quantity in car: 1
  • Power distributor block (black) (6-way male mp 280) (with leads)
  • Usage: G1, 2, 3 (YF2, YF7)

$32.34—34.79

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305872
  • Quantity in car: 1
  • Inline-to instrument panel harness (from instrument panel wiring harness) (black) (6-way male mp 280) (with leads)
  • Usage: G1, 2, 3

$32.34—34.79

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305887
  • Quantity in car: 1
  • Inline-to parking/neutral position switch (gray) (7-way female) (with leads)
  • Usage: G1, 2, 3, G1, 2, 3

$72.44—82.33

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305888
  • Quantity in car: 1
  • Inline-to instrument panel harness (from body harness) (black) (6-way female) (with leads)
  • Usage: G1, 2, 3

$31.05—74.20

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305888
  • Quantity in car: 1
  • Inline-to instrument panel harness (from body wiring harness) (black) (6-way female) (with leads) (used on vehicle with black connectors @ trailer har, for second design see 12089527)
  • Usage: G1, 2, 3 (1ST DES)

$31.05—74.20

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305896
  • Quantity in car: 1
  • Usage: G1, 2, 3

$17.91—19.65

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305916
  • Quantity in car: 1
  • Injector-fuel (16ga wires) (black) (10-way female) (with leads)
  • Usage: G3 (L29), G3 (L29, KW2, NF2)

$50.25—119.94

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15305916
  • Quantity in car: 1
  • Inline-to electronic brake module (black) (10-way female) (with leads)
  • Usage: G1, 2, 3, G1, 2, 3, G1, 2, 3

$50.25—119.94

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306008
  • Quantity in car: 1
  • Power distributor block (black) (4-way male metri-pack 630) (with leads)
  • Usage: G1, 2, 3

$30.27—34.57

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306009
  • Quantity in car: 1
  • gen. (oval) (black) (4-way female m/p150) (with leads)
  • Usage: G1, 2, 3 (L29, L30, L31, L35, L65)

$25.06—30.04

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306027
  • Quantity in car: 1
  • Solenoid-exhaust gas recirculation valve (with leads, with connect cover) (black) (5-way female) (with leads) (with cover)
  • Usage: G1, 2, 3 (L29, L30, L31, L35)

$24.27—29.84

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306065
  • Quantity in car: 1
  • Inline-to instrument panel harness (from brake fluid level indicator wiring harness, with locking tab) (natural) (2-way m with leads)
  • Usage: G2, 3

$18.89—22.52

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306069
  • Quantity in car: 1
  • Resistor-blower motor (mp 280) (gray) (4-way female) (with leads) (flat)
  • Usage: G1, 2, 3 (05-06) (C36)

$29.03—35.50

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306071
  • Quantity in car: 1
  • gen. (natural) (1-way female) (with leads)
  • Usage: G1, 2, 3

$9.90—12.19

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306089
  • Quantity in car: 1
  • Usage: G1, 2, 3

$54.25—65.00

Available in 38 shops

Add to cart

15306146 genuine OEM part.

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306146
  • Quantity in car: 1
  • Switch-air conditioning compressor high pressure cutoff (black) (2-way f) (with leads)
  • Usage: G1, 2, 3

$13.00—28.85

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306155
  • Quantity in car: 1
  • Inline-to instrument panel harness (black) (8-way male) (with leads)
  • Usage: G1, 2, 3 (AU0)

$33.29—35.82

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306302
  • Quantity in car: 1
  • Horn (gray) (2-way female) (with leads)
  • Usage: G1, 2, 3

$17.17—18.48

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 15306302
  • Quantity in car: 1
  • Switch-air conditioning compressor low pressure cutoff (gray) (2-way female) (with leads)
  • Usage: G1, 2, 3

$17.17—18.48

Available in 2 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88860465
  • Quantity in car: 1
  • Sensor-mass airflow (3-way female) (all makes)
  • Usage: G3 (L29), G3 (L29)

$27.83—56.43

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88861107
  • Quantity in car: 1
  • Usage: G3 (L29), G3 (L29)

$6.84—16.26

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88986451
  • Quantity in car: 1
  • Sensor-crankshaft position (black) (3-way female) (mp150) (with leads)
  • Usage: G1, 2, 3 (L29, L30, L31, L35, L65)

$21.16

Available in 1 shop

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88986451
  • Quantity in car: 1
  • Sensor-mass airflow (black) (3-way female) (mp150) (with leads)
  • Usage: G1, 2, 3

$21.16

Available in 1 shop

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987185
  • Quantity in car: 1
  • Inline-to parking/neutral position switch (black) (4-way female) (with leads)
  • Usage: G1, 2, 3, G1, 2, 3

$28.58—69.64

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987962
  • Quantity in car: 1
  • gen. (from gen. wiring harness, rectangle) (4-way female) (with lead) (with wires in cavities f, l, p & s)
  • Usage: G1, 2, 3

$40.28—82.40

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987992
  • Quantity in car: 1
  • Coil-ignition (brown) (3-way female) (with leads)
  • Usage: G1, 2, 3 (L29, L30, L31, L35)

$27.30—33.54

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987993
  • Quantity in car: 1
  • Sensor-vehicle speed (black) (2-way female) (with leads)
  • Usage: G1, 2, 3

$29.05—35.70

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987993
  • Quantity in car: 1
  • Sensor-engine coolant temp (black) (2-way female) (with leads)
  • Usage: G1, 2, 3, G1, 2, 3

$29.05—35.70

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987993
  • Quantity in car: 1
  • Lamp-underhood (from underhood lamp wiring harness) (black) (2-way female) (with leads)
  • Usage: G1, 2, 3

$29.05—35.70

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88987993
  • Sensor-vehicle speed (black) (2-way female) (with leads)
  • Usage: G1, 2, 3

$29.05—35.70

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88988301
  • Quantity in car: 1
  • Sensor-throttle position (black) (3-way female) (with leads)
  • Usage: G1, 2, 3

$34.95—71.82

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88988598
  • Quantity in car: 1
  • Inline-to oxygen sensor (from secondary oxygen sensor wiring harness) (black) (4-way female) (with leads) (square)
  • Usage: G1, 2, 3, G1, 2, 3

$37.83—77.35

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 88988598
  • Quantity in car: 1
  • Inline-to fuel tank harness (black) (4-way female) (with leads) (square)
  • Usage: G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3 (L29, L30, L31, L35), G1, 2, 3, G1, 2, 3

$37.83—77.35

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 02968099
  • Wiring harness (inline-to fuel pump prime)

$?

Add to cart

Nut, wiring harness engine (l29/7.4j)

  • OEM part number: 09414034
  • Quantity in car: 2
  • Hexagon .375-16x21/64 301m zinc coated (engine wiring harness ground)

$?

Add to cart

Fuse, wiring harness engine (l29/7.4j)

  • OEM part number: 88909771
  • Maxi 30 a (light green) (wiring harness)

$2.24—4.33

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12085209
  • Quantity in car: 1
  • Usage: G1, 2, 3 (AU0) (EXPORT)

$20.97—36.80

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12102490
  • Quantity in car: 1
  • Inline-to instrument panel harness (from fwd lamp wiring harness) (gray) (7-way male) (with leads)
  • Usage: G1, 2, 3 (WX7) (EXPORT)

$36.20—40.24

Available in 38 shops

Add to cart

Connector, wiring harness engine (l29/7.4j)

  • OEM part number: 12125665
  • Quantity in car: 1
  • Inline-to instrument panel harness (from instrument panel lower extension) (gray) (6-way female) (with leads)
  • Usage: G1, 2, 3 (TR6) (EXPORT), G1, 2, 3 (T79) (EXPORT)

$0.46—23.21

Available in 2 shops

Add to cart

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