Contact Us
:
Live Chat
or
1-888-737-9766
×
Live Chat
1-888-737-9766
Buick Parts
Cadillac Parts
Chevrolet Parts
GMC Parts
Hummer Parts
Oldsmobile Parts
Pontiac Parts
Saturn Parts
GM Accessories
Login/Register
My Account
Track Order
Help Center
Contact Us
Buick Parts
Cadillac Parts
Chevrolet Parts
GMC Parts
GM Parts
Hummer Parts
Oldsmobile Parts
Pontiac Parts
Saturn Parts
GM Accessories
Track Order
Help Center
Search Bar
Search by Part Number, Part Name, Description
My Garage
My Account
My Cart
Home
>
GMC
>
Sierra
>
Engine Wiring Harness Connector
>
2003
Genuine 2003 GMC Sierra Engine Wiring Harness Connector
Wiring Harness Connector for Engine
Enter your vehicle info to find more parts and verify fitment
Select Vehicle by VIN
Select Vehicle by Model
Select by VIN
Enter your VIN for the most accurate results.
Filter Results
Enter your VIN for the most accurate results.
or
Select by Model
-- Select Make --
-- Select Model --
-- Select Year --
Filter Results
45
Engine Wiring Harness Connectors found
View related parts
2003 GMC Sierra Connector Assembly, Wiring Harness *Black
Part Number:
13587152
Vehicle Specific
Other Name:
CONNECTOR, Chassis Electrical
Replaces:
15326840, 15306241
$48.54
MSRP:
$108.34
You Save: $59.80 (56%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
2500 CREW CAB LONG BOX, 2500 EXTENDED CAB LONG BOX, 2500 REGULAR CAB
| 8 Cyl 6.6L Diesel
Less Info
View related parts
2003 GMC Sierra Connector,Switch, Brake Fluid Level Indicator *Gray
Part Number:
88987993
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors
Replaces:
15306195, 88987978, 88987183, 12046623, 12126469, 12101899, 15329175
$35.41
MSRP:
$79.04
You Save: $43.63 (56%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 2-Way F. *Black *Math Data
Part Number:
12085535
Vehicle Specific
Other Name:
CONNECTOR, Chassis Electrical
$18.52
MSRP:
$34.94
You Save: $16.42 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 3-Way F. *Black
Part Number:
12117025
Vehicle Specific
Other Name:
CONNECTOR, Distributor (also Knock Sensor)
$34.03
MSRP:
$64.20
You Save: $30.17 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 161.5, 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector Asm,Wiring Harness W/Leads *Black
Part Number:
13586114
Vehicle Specific
Other Name:
CONNECTOR, Windshield Washer
Replaces:
12102747
$25.34
MSRP:
$47.82
You Save: $22.48 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 1-Way M. *Medium Gray *Gray
Part Number:
12102621
Vehicle Specific
Other Name:
CONNECTOR, Distributor (also Knock Sensor)
Replaces:
12126456
$16.53
MSRP:
$31.18
You Save: $14.65 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector Asm,Wiring Harness W/Leads *Black
Part Number:
13585316
Vehicle Specific
Other Name:
CONNECTOR, Distributor (also Knock Sensor)
Replaces:
12085495, 88986451, 13580870
$28.70
MSRP:
$54.16
You Save: $25.46 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 4-Way M. *Black *Math Data
Part Number:
15305801
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors; Oxygen Sensor
$39.50
MSRP:
$74.52
You Save: $35.02 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector,Motor, Fuel Pump
Part Number:
88988598
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors
Replaces:
12167154, 15305876
$54.61
MSRP:
$103.04
You Save: $48.43 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 2-Way M. *Black
Part Number:
12167120
Vehicle Specific
Other Name:
CONNECTOR, Chassis Electrical; Harness
Replaces:
12125649, 12146134, 12162000
$32.41
MSRP:
$61.16
You Save: $28.75 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector,Sensor, Map
Part Number:
88987997
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors; Harness
Replaces:
12129946
$36.38
MSRP:
$68.64
You Save: $32.26 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 4-Way F. *Black *Math Data
Part Number:
12102900
Vehicle Specific
Other Name:
CONNECTOR, Chassis Electrical; Connector, Wire Connector
$38.36
MSRP:
$72.38
You Save: $34.02 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector,Wiring Harness
Part Number:
12101898
Vehicle Specific
Other Name:
CONNECTOR, Capsule/Headlamp/Fog Lamp; Connector, Socket
$26.00
MSRP:
$49.06
You Save: $23.06 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L
Less Info
View related parts
2003 GMC Sierra Connector,Wiring Harness
Part Number:
13584094
Vehicle Specific
Other Name:
CONNECTOR, Chassis Electrical
Replaces:
88988944, 88953153, 15326829
$21.35
MSRP:
$40.28
You Save: $18.93 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB
| 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra CONNECTOR KIT,WRG HARN *BLACK
Part Number:
19367637
Vehicle Specific
Other Name:
Sensor Connector
Replaces:
88986255, 13580112, 88986452
$47.52
MSRP:
$106.08
You Save: $58.56 (56%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB
| 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector Asm,Wiring Harness W/ Leads *Gray
Part Number:
13580883
Vehicle Specific
Other Name:
CONNECTOR, Ignition Coil
Replaces:
12102754
$42.44
MSRP:
$94.72
You Save: $52.28 (56%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector,Sensor, Transfer Case Fluid Temperature
Part Number:
19178093
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors
Replaces:
15306187
$35.44
MSRP:
$66.86
You Save: $31.42 (47%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB SHORT BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 1500 CREW CAB LONG BOX, CLASSIC 1500 CREW CAB STANDARD BOX, CLASSIC 1500 EXTENDED CAB LONG BOX, CLASSIC 1500 EXTENDED CAB SHORT BOX, CLASSIC 1500 EXTENDED CAB STANDARD BOX, CLASSIC 1500 REGULAR CAB LONG BOX, CLASSIC 1500 REGULAR CAB STANDARD BOX, CLASSIC 2500 CREW CAB LONG BOX, CLASSIC 2500 CREW CAB STANDARD BOX, CLASSIC 2500 EXTENDED CAB LONG BOX, CLASSIC 2500 EXTENDED CAB STANDARD BOX, CLASSIC 2500 REGULAR CAB, CLASSIC 3500 CHASSIS EXTENDED CAB 161.5, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5, CLASSIC 3500 CREW CAB, CLASSIC 3500 EXTENDED CAB, CLASSIC 3500 REGULAR CAB
| 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector,Inline, To Instrument Panel Harness
Part Number:
19181245
Vehicle Specific
Other Name:
CONNECTOR, Chassis Electrical
Replaces:
15306122
$4.57
MSRP:
$8.20
You Save: $3.63 (45%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB
| 8 Cyl 6.6L Diesel, 8 Cyl 8.1L
Less Info
View related parts
2003 GMC Sierra Connector, W/Leads, 4-Way F. *Gray *Math Data
Part Number:
15305960
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors
$41.17
MSRP:
$91.91
You Save: $50.74 (56%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 CREW CAB STANDARD BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB
| 8 Cyl 4.8L, 8 Cyl 5.3L
Less Info
View related parts
2003 GMC Sierra Connector,Inline, To Oxygen Sensor
Part Number:
15306311
Vehicle Specific
Other Name:
CONNECTOR, Computer Control Sensors
$49.71
MSRP:
$93.80
You Save: $44.09 (48%)
Check the fit
Add to Cart
More Info
Fits the following 2003 GMC Sierra Submodels:
1500 CREW CAB LONG BOX, 1500 EXTENDED CAB LONG BOX, 1500 EXTENDED CAB STANDARD BOX, 1500 REGULAR CAB LONG BOX, 1500 REGULAR CAB STANDARD BOX, 2500 CREW CAB LONG BOX, 2500 CREW CAB STANDARD BOX, 2500 EXTENDED CAB LONG BOX, 2500 EXTENDED CAB STANDARD BOX, 2500 REGULAR CAB, 3500 CHASSIS EXTENDED CAB 161.5, 3500 CHASSIS EXTENDED CAB 185.5, 3500 CHASSIS REGULAR CAB 137.0, 3500 CHASSIS REGULAR CAB 161.5, 3500 CREW CAB, 3500 EXTENDED CAB, 3500 REGULAR CAB, CLASSIC 3500 CHASSIS REGULAR CAB 137.0, CLASSIC 3500 CHASSIS REGULAR CAB 161.5
| 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 8.1L
Less Info
| Page 1 of 3 |
Next >
1-20 of 45 Results
Related 2003 GMC Sierra Parts
2003 GMC Sierra Body Wiring Harness Connector
2003 GMC Sierra Speaker Connector
2003 GMC Sierra Tail Light Connector
2003 GMC Sierra Dome Light Connector
2003 GMC Sierra Door Harness Connector
2003 GMC Sierra Forward Light Harness Connector
2003 GMC Sierra Instrument Panel Harness Connector
2003 GMC Sierra Door Lock Switch Connector
2003 GMC Sierra Fog Light Connector
2003 GMC Sierra Rear Light Harness Connector
2003 GMC Sierra ABS Wheel Speed Sensor Connector
2003 GMC Sierra Power Seat Connector
Alternate Year Models
+
2002 GMC Sierra Engine Wiring Harness Connector
2004 GMC Sierra Engine Wiring Harness Connector